BoilerBuddy · fault code lookup
Worcester Bosch fault codes — in plain English.
Enter the code shown on your boiler display to find published, verified guidance for the matching model range. If a code appears in more than one range, choose yours to open the right record.
No account needed
No app to install
Range-aware lookup
Verified catalogue
Source-backed catalogue
Verified boiler fault-code guides
Choose a supported model and code to read the catalogue entry and its source documents.
Worcester Bosch · Greenstar 4000 Combi
- Worcester Bosch 214214 indicates fan shut down during safety time.
- Worcester Bosch 224224 indicates the maximal flue gas thermostat or heat exchanger maximal thermostat has activated.
- Worcester Bosch 227227 indicates no flame signal after ignition.
- Worcester Bosch 228228 indicates flame signal without flame present.
- Worcester Bosch 234234 indicates gas valve electrical fault.
- Worcester Bosch 200The official Greenstar 4000 Combi manual classifies code 200 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 201The official Greenstar 4000 Combi manual classifies code 201 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 202The official Greenstar 4000 Combi manual classifies code 202 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 203The official Greenstar 4000 Combi manual classifies code 203 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 204The official Greenstar 4000 Combi manual classifies code 204 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 208The official Greenstar 4000 Combi manual classifies code 208 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 232The official Greenstar 4000 Combi manual includes code 232 in its operating/fault code table on printed page 72. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 233The official Greenstar 4000 Combi manual includes code 233 in its operating/fault code table on printed page 73. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 235The official Greenstar 4000 Combi manual includes code 235 in its operating/fault code table on printed page 73. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 237The official Greenstar 4000 Combi manual includes code 237 in its operating/fault code table on printed page 73. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 242The official Greenstar 4000 Combi manual includes code 242 in its operating/fault code table on printed page 73. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 245The official Greenstar 4000 Combi manual includes code 245 in its operating/fault code table on printed page 73. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 249The official Greenstar 4000 Combi manual includes code 249 in its operating/fault code table on printed page 73. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 250The official Greenstar 4000 Combi manual includes code 250 in its operating/fault code table on printed page 73. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 251The official Greenstar 4000 Combi manual includes code 251 in its operating/fault code table on printed page 73. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 252The official Greenstar 4000 Combi manual includes code 252 in its operating/fault code table on printed page 73. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 253The official Greenstar 4000 Combi manual includes code 253 in its operating/fault code table on printed page 73. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 254The official Greenstar 4000 Combi manual includes code 254 in its operating/fault code table on printed page 73. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 258The official Greenstar 4000 Combi manual includes code 258 in its operating/fault code table on printed page 73. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 259The official Greenstar 4000 Combi manual includes code 259 in its operating/fault code table on printed page 73. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 262The official Greenstar 4000 Combi manual includes code 262 in its operating/fault code table on printed page 74. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 263The official Greenstar 4000 Combi manual includes code 263 in its operating/fault code table on printed page 74. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 265The official Greenstar 4000 Combi manual includes code 265 in its operating/fault code table on printed page 74. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 268The official Greenstar 4000 Combi manual classifies code 268 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 269The official Greenstar 4000 Combi manual includes code 269 in its operating/fault code table on printed page 74. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 273The official Greenstar 4000 Combi manual includes code 273 in its operating/fault code table on printed page 74. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 281The official Greenstar 4000 Combi manual includes code 281 in its operating/fault code table on printed page 74. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 283The official Greenstar 4000 Combi manual classifies code 283 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 284The official Greenstar 4000 Combi manual classifies code 284 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 305The official Greenstar 4000 Combi manual classifies code 305 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 306The official Greenstar 4000 Combi manual includes code 306 in its operating/fault code table on printed page 74. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 353The official Greenstar 4000 Combi manual classifies code 353 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 357The official Greenstar 4000 Combi manual classifies code 357 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 358The official Greenstar 4000 Combi manual classifies code 358 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 360The official Greenstar 4000 Combi manual includes code 360 in its operating/fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 362The official Greenstar 4000 Combi manual includes code 362 in its operating/fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 363The official Greenstar 4000 Combi manual includes code 363 in its operating/fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1010The official Greenstar 4000 Combi manual includes code 1010 in its operating/fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1013The official Greenstar 4000 Combi manual includes code 1013 in its operating/fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1018The official Greenstar 4000 Combi manual includes code 1018 in its operating/fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1019The official Greenstar 4000 Combi manual includes code 1019 in its operating/fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1021The official Greenstar 4000 Combi manual includes code 1021 in its operating/fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1023The official Greenstar 4000 Combi manual includes code 1023 in its operating/fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1037The official Greenstar 4000 Combi manual includes code 1037 in its operating/fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1065The official Greenstar 4000 Combi manual includes code 1065 in its operating/fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1068The official Greenstar 4000 Combi manual includes code 1068 in its operating/fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1070The official Greenstar 4000 Combi manual includes code 1070 in its operating/fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1071The official Greenstar 4000 Combi manual includes code 1071 in its operating/fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1072The official Greenstar 4000 Combi manual includes code 1072 in its operating/fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1073The official Greenstar 4000 Combi manual includes code 1073 in its operating/fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1074The official Greenstar 4000 Combi manual includes code 1074 in its operating/fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1075The official Greenstar 4000 Combi manual includes code 1075 in its operating/fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1076The official Greenstar 4000 Combi manual includes code 1076 in its operating/fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2085The official Greenstar 4000 Combi manual includes code 2085 in its operating/fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2908The official Greenstar 4000 Combi manual includes code 2908 in its operating/fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2910The official Greenstar 4000 Combi manual includes code 2910 in its operating/fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2914The official Greenstar 4000 Combi manual includes code 2914 in its operating/fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2915The official Greenstar 4000 Combi manual includes code 2915 in its operating/fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2916The official Greenstar 4000 Combi manual includes code 2916 in its operating/fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2920The official Greenstar 4000 Combi manual includes code 2920 in its operating/fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2923The official Greenstar 4000 Combi manual includes code 2923 in its operating/fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2927The official Greenstar 4000 Combi manual includes code 2927 in its operating/fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2928The official Greenstar 4000 Combi manual includes code 2928 in its operating/fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2931The official Greenstar 4000 Combi manual includes code 2931 in its operating/fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2940The official Greenstar 4000 Combi manual includes code 2940 in its operating/fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2946The official Greenstar 4000 Combi manual includes code 2946 in its operating/fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2948The official Greenstar 4000 Combi manual includes code 2948 in its operating/fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2949The official Greenstar 4000 Combi manual includes code 2949 in its operating/fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2950The official Greenstar 4000 Combi manual includes code 2950 in its operating/fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2951The official Greenstar 4000 Combi manual includes code 2951 in its operating/fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2952The official Greenstar 4000 Combi manual includes code 2952 in its operating/fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2957The official Greenstar 4000 Combi manual includes code 2957 in its operating/fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2961The official Greenstar 4000 Combi manual includes code 2961 in its operating/fault code table on printed page 78. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2962The official Greenstar 4000 Combi manual includes code 2962 in its operating/fault code table on printed page 78. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2963The official Greenstar 4000 Combi manual includes code 2963 in its operating/fault code table on printed page 78. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2964The official Greenstar 4000 Combi manual includes code 2964 in its operating/fault code table on printed page 78. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2965The official Greenstar 4000 Combi manual includes code 2965 in its operating/fault code table on printed page 78. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2966The official Greenstar 4000 Combi manual includes code 2966 in its operating/fault code table on printed page 78. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2967The official Greenstar 4000 Combi manual includes code 2967 in its operating/fault code table on printed page 78. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2968The official Greenstar 4000 Combi manual classifies code 2968 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 2969The official Greenstar 4000 Combi manual includes code 2969 in its operating/fault code table on printed page 78. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2970The official Greenstar 4000 Combi manual includes code 2970 in its operating/fault code table on printed page 78. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2971The official Greenstar 4000 Combi manual includes code 2971 in its operating/fault code table on printed page 79. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2972The official Greenstar 4000 Combi manual includes code 2972 in its operating/fault code table on printed page 79. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2980The official Greenstar 4000 Combi manual includes code 2980 in its operating/fault code table on printed page 79. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2981The official Greenstar 4000 Combi manual includes code 2981 in its operating/fault code table on printed page 79. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 3071The official Greenstar 4000 Combi manual includes code 3071 in its operating/fault code table on printed page 79. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 238238 indicates that the boiler electronics are faulty.
- Worcester Bosch 1017System pressure is too low.
Worcester Bosch · Greenstar 8000 Life Combi
- Worcester Bosch 214214 indicates fan shut down during safety time.
- Worcester Bosch 224224 indicates the maximal flue gas thermostat or heat exchanger maximal thermostat has activated.
- Worcester Bosch 227227 indicates no flame signal after ignition.
- Worcester Bosch 228228 indicates flame signal without flame present.
- Worcester Bosch 234234 indicates gas valve electrical fault.
- Worcester Bosch 200The official Greenstar 8000 Life Combi manual classifies code 200 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 201The official Greenstar 8000 Life Combi manual classifies code 201 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 202The official Greenstar 8000 Life Combi manual classifies code 202 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 203The official Greenstar 8000 Life Combi manual classifies code 203 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 204The official Greenstar 8000 Life Combi manual classifies code 204 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 208The official Greenstar 8000 Life Combi manual classifies code 208 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 232The official Greenstar 8000 Life Combi manual includes code 232 in its fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 233The official Greenstar 8000 Life Combi manual includes code 233 in its fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 235The official Greenstar 8000 Life Combi manual includes code 235 in its fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 237The official Greenstar 8000 Life Combi manual includes code 237 in its fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 238The official Greenstar 8000 Life Combi manual includes code 238 in its fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 242The official Greenstar 8000 Life Combi manual includes code 242 in its fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 244The official Greenstar 8000 Life Combi manual includes code 244 in its fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 245The official Greenstar 8000 Life Combi manual includes code 245 in its fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 249The official Greenstar 8000 Life Combi manual includes code 249 in its fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 250The official Greenstar 8000 Life Combi manual includes code 250 in its fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 251The official Greenstar 8000 Life Combi manual includes code 251 in its fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 252The official Greenstar 8000 Life Combi manual includes code 252 in its fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 253The official Greenstar 8000 Life Combi manual includes code 253 in its fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 254The official Greenstar 8000 Life Combi manual includes code 254 in its fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 257The official Greenstar 8000 Life Combi manual includes code 257 in its fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 258The official Greenstar 8000 Life Combi manual includes code 258 in its fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 259The official Greenstar 8000 Life Combi manual includes code 259 in its fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 262The official Greenstar 8000 Life Combi manual includes code 262 in its fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 263The official Greenstar 8000 Life Combi manual includes code 263 in its fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 265The official Greenstar 8000 Life Combi manual includes code 265 in its fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 268The official Greenstar 8000 Life Combi manual classifies code 268 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 269The official Greenstar 8000 Life Combi manual includes code 269 in its fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 273The official Greenstar 8000 Life Combi manual includes code 273 in its fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 281The official Greenstar 8000 Life Combi manual includes code 281 in its fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 283The official Greenstar 8000 Life Combi manual classifies code 283 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 284The official Greenstar 8000 Life Combi manual classifies code 284 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 305The official Greenstar 8000 Life Combi manual classifies code 305 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 306The official Greenstar 8000 Life Combi manual includes code 306 in its fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 357The official Greenstar 8000 Life Combi manual classifies code 357 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 358The official Greenstar 8000 Life Combi manual classifies code 358 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 360The official Greenstar 8000 Life Combi manual includes code 360 in its fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 362The official Greenstar 8000 Life Combi manual includes code 362 in its fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 363The official Greenstar 8000 Life Combi manual includes code 363 in its fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 604The official Greenstar 8000 Life Combi manual includes code 604 in its fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 815The official Greenstar 8000 Life Combi manual includes code 815 in its fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1010The official Greenstar 8000 Life Combi manual classifies code 1010 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 1013The official Greenstar 8000 Life Combi manual includes code 1013 in its fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1018The official Greenstar 8000 Life Combi manual includes code 1018 in its fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1019The official Greenstar 8000 Life Combi manual includes code 1019 in its fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1021The official Greenstar 8000 Life Combi manual includes code 1021 in its fault code table on printed page 78. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1023The official Greenstar 8000 Life Combi manual includes code 1023 in its fault code table on printed page 78. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1025The official Greenstar 8000 Life Combi manual includes code 1025 in its fault code table on printed page 78. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1037The official Greenstar 8000 Life Combi manual includes code 1037 in its fault code table on printed page 78. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1065The official Greenstar 8000 Life Combi manual includes code 1065 in its fault code table on printed page 78. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1068The official Greenstar 8000 Life Combi manual includes code 1068 in its fault code table on printed page 78. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1070The official Greenstar 8000 Life Combi manual includes code 1070 in its fault code table on printed page 78. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1071The official Greenstar 8000 Life Combi manual includes code 1071 in its fault code table on printed page 78. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1072The official Greenstar 8000 Life Combi manual includes code 1072 in its fault code table on printed page 78. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1075The official Greenstar 8000 Life Combi manual includes code 1075 in its fault code table on printed page 78. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1076The official Greenstar 8000 Life Combi manual includes code 1076 in its fault code table on printed page 78. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2085The official Greenstar 8000 Life Combi manual includes code 2085 in its fault code table on printed page 78. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2908The official Greenstar 8000 Life Combi manual includes code 2908 in its fault code table on printed page 78. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2910The official Greenstar 8000 Life Combi manual includes code 2910 in its fault code table on printed page 78. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2914The official Greenstar 8000 Life Combi manual includes code 2914 in its fault code table on printed page 78. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2915The official Greenstar 8000 Life Combi manual includes code 2915 in its fault code table on printed page 78. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2916The official Greenstar 8000 Life Combi manual includes code 2916 in its fault code table on printed page 78. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2920The official Greenstar 8000 Life Combi manual includes code 2920 in its fault code table on printed page 78. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2923The official Greenstar 8000 Life Combi manual includes code 2923 in its fault code table on printed page 79. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2924The official Greenstar 8000 Life Combi manual includes code 2924 in its fault code table on printed page 79. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2925The official Greenstar 8000 Life Combi manual includes code 2925 in its fault code table on printed page 79. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2926The official Greenstar 8000 Life Combi manual includes code 2926 in its fault code table on printed page 79. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2928The official Greenstar 8000 Life Combi manual includes code 2928 in its fault code table on printed page 79. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2931The official Greenstar 8000 Life Combi manual includes code 2931 in its fault code table on printed page 79. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2940The official Greenstar 8000 Life Combi manual includes code 2940 in its fault code table on printed page 79. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2946The official Greenstar 8000 Life Combi manual includes code 2946 in its fault code table on printed page 79. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2948The official Greenstar 8000 Life Combi manual includes code 2948 in its fault code table on printed page 79. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2949The official Greenstar 8000 Life Combi manual includes code 2949 in its fault code table on printed page 79. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2950The official Greenstar 8000 Life Combi manual includes code 2950 in its fault code table on printed page 79. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2951The official Greenstar 8000 Life Combi manual includes code 2951 in its fault code table on printed page 79. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2952The official Greenstar 8000 Life Combi manual includes code 2952 in its fault code table on printed page 79. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2955The official Greenstar 8000 Life Combi manual includes code 2955 in its fault code table on printed page 79. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2956The official Greenstar 8000 Life Combi manual classifies code 2956 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 2957The official Greenstar 8000 Life Combi manual includes code 2957 in its fault code table on printed page 79. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2961The official Greenstar 8000 Life Combi manual includes code 2961 in its fault code table on printed page 80. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2962The official Greenstar 8000 Life Combi manual includes code 2962 in its fault code table on printed page 80. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2963The official Greenstar 8000 Life Combi manual includes code 2963 in its fault code table on printed page 80. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2965The official Greenstar 8000 Life Combi manual includes code 2965 in its fault code table on printed page 80. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2966The official Greenstar 8000 Life Combi manual includes code 2966 in its fault code table on printed page 80. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2968The official Greenstar 8000 Life Combi manual classifies code 2968 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 2969The official Greenstar 8000 Life Combi manual includes code 2969 in its fault code table on printed page 80. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2970The official Greenstar 8000 Life Combi manual includes code 2970 in its fault code table on printed page 80. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2971The official Greenstar 8000 Life Combi manual includes code 2971 in its fault code table on printed page 80. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2972The official Greenstar 8000 Life Combi manual includes code 2972 in its fault code table on printed page 80. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 229Flame failed during burner operation.
- Worcester Bosch 10171017 indicates that the system pressure is too low.
Worcester Bosch · Greenstar 8000 Style Combi
- Worcester Bosch 214214 indicates fan shut down during safety time.
- Worcester Bosch 224224 indicates the maximal flue gas thermostat or heat exchanger maximal thermostat has activated.
- Worcester Bosch 227227 indicates no flame signal after ignition.
- Worcester Bosch 228228 indicates flame signal without flame present.
- Worcester Bosch 234234 indicates gas valve electrical fault.
- Worcester Bosch 200The official Greenstar 8000 Style Combi manual classifies code 200 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 201The official Greenstar 8000 Style Combi manual classifies code 201 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 202The official Greenstar 8000 Style Combi manual classifies code 202 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 203The official Greenstar 8000 Style Combi manual classifies code 203 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 204The official Greenstar 8000 Style Combi manual classifies code 204 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 208The official Greenstar 8000 Style Combi manual classifies code 208 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 232The official Greenstar 8000 Style Combi manual includes code 232 in its fault code table on printed page 74. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 233The official Greenstar 8000 Style Combi manual includes code 233 in its fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 235The official Greenstar 8000 Style Combi manual includes code 235 in its fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 237The official Greenstar 8000 Style Combi manual includes code 237 in its fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 238The official Greenstar 8000 Style Combi manual includes code 238 in its fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 242The official Greenstar 8000 Style Combi manual includes code 242 in its fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 244The official Greenstar 8000 Style Combi manual includes code 244 in its fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 245The official Greenstar 8000 Style Combi manual includes code 245 in its fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 249The official Greenstar 8000 Style Combi manual includes code 249 in its fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 250The official Greenstar 8000 Style Combi manual includes code 250 in its fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 251The official Greenstar 8000 Style Combi manual includes code 251 in its fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 252The official Greenstar 8000 Style Combi manual includes code 252 in its fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 253The official Greenstar 8000 Style Combi manual includes code 253 in its fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 254The official Greenstar 8000 Style Combi manual includes code 254 in its fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 257The official Greenstar 8000 Style Combi manual includes code 257 in its fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 258The official Greenstar 8000 Style Combi manual includes code 258 in its fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 259The official Greenstar 8000 Style Combi manual includes code 259 in its fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 262The official Greenstar 8000 Style Combi manual includes code 262 in its fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 263The official Greenstar 8000 Style Combi manual includes code 263 in its fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 265The official Greenstar 8000 Style Combi manual includes code 265 in its fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 268The official Greenstar 8000 Style Combi manual classifies code 268 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 269The official Greenstar 8000 Style Combi manual includes code 269 in its fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 273The official Greenstar 8000 Style Combi manual includes code 273 in its fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 281The official Greenstar 8000 Style Combi manual includes code 281 in its fault code table on printed page 75. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 283The official Greenstar 8000 Style Combi manual classifies code 283 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 284The official Greenstar 8000 Style Combi manual classifies code 284 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 305The official Greenstar 8000 Style Combi manual classifies code 305 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 306The official Greenstar 8000 Style Combi manual includes code 306 in its fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 357The official Greenstar 8000 Style Combi manual classifies code 357 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 358The official Greenstar 8000 Style Combi manual classifies code 358 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 360The official Greenstar 8000 Style Combi manual includes code 360 in its fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 362The official Greenstar 8000 Style Combi manual includes code 362 in its fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 363The official Greenstar 8000 Style Combi manual includes code 363 in its fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 604The official Greenstar 8000 Style Combi manual includes code 604 in its fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 815The official Greenstar 8000 Style Combi manual includes code 815 in its fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1010The official Greenstar 8000 Style Combi manual classifies code 1010 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 1013The official Greenstar 8000 Style Combi manual includes code 1013 in its fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1018The official Greenstar 8000 Style Combi manual includes code 1018 in its fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1019The official Greenstar 8000 Style Combi manual includes code 1019 in its fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1023The official Greenstar 8000 Style Combi manual includes code 1023 in its fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1025The official Greenstar 8000 Style Combi manual includes code 1025 in its fault code table on printed page 76. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1037The official Greenstar 8000 Style Combi manual includes code 1037 in its fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1068The official Greenstar 8000 Style Combi manual includes code 1068 in its fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1070The official Greenstar 8000 Style Combi manual includes code 1070 in its fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1071The official Greenstar 8000 Style Combi manual includes code 1071 in its fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1072The official Greenstar 8000 Style Combi manual includes code 1072 in its fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1075The official Greenstar 8000 Style Combi manual includes code 1075 in its fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2085The official Greenstar 8000 Style Combi manual includes code 2085 in its fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2910The official Greenstar 8000 Style Combi manual includes code 2910 in its fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2914The official Greenstar 8000 Style Combi manual includes code 2914 in its fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2915The official Greenstar 8000 Style Combi manual includes code 2915 in its fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2916The official Greenstar 8000 Style Combi manual includes code 2916 in its fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2920The official Greenstar 8000 Style Combi manual includes code 2920 in its fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2923The official Greenstar 8000 Style Combi manual includes code 2923 in its fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2924The official Greenstar 8000 Style Combi manual includes code 2924 in its fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2925The official Greenstar 8000 Style Combi manual includes code 2925 in its fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2926The official Greenstar 8000 Style Combi manual includes code 2926 in its fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2927The official Greenstar 8000 Style Combi manual includes code 2927 in its fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2928The official Greenstar 8000 Style Combi manual includes code 2928 in its fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2931The official Greenstar 8000 Style Combi manual includes code 2931 in its fault code table on printed page 77. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2940The official Greenstar 8000 Style Combi manual includes code 2940 in its fault code table on printed page 78. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2948The official Greenstar 8000 Style Combi manual includes code 2948 in its fault code table on printed page 78. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2950The official Greenstar 8000 Style Combi manual includes code 2950 in its fault code table on printed page 78. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2952The official Greenstar 8000 Style Combi manual includes code 2952 in its fault code table on printed page 78. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2956The official Greenstar 8000 Style Combi manual classifies code 2956 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 2961The official Greenstar 8000 Style Combi manual includes code 2961 in its fault code table on printed page 78. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2962The official Greenstar 8000 Style Combi manual includes code 2962 in its fault code table on printed page 78. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2965The official Greenstar 8000 Style Combi manual includes code 2965 in its fault code table on printed page 79. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2968The official Greenstar 8000 Style Combi manual classifies code 2968 as a normal operating message, not a fault. See the linked table for the manufacturer's display description.
- Worcester Bosch 2969The official Greenstar 8000 Style Combi manual includes code 2969 in its fault code table on printed page 79. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2970The official Greenstar 8000 Style Combi manual includes code 2970 in its fault code table on printed page 79. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 2972The official Greenstar 8000 Style Combi manual includes code 2972 in its fault code table on printed page 79. The manufacturer table linked below gives the display text and fault category.
- Worcester Bosch 1021Cylinder charging or hot water temperature sensor faulty.
- Worcester Bosch 1065System pressure sensor faulty or not connected.
- Worcester Bosch 1076Heat exchanger temperature sensor disconnected.
- Worcester Bosch 2908System fault in the boiler electronics / basic controller.
- Worcester Bosch 2957System fault in the boiler electronics.
- Worcester Bosch 2963Heat exchanger sensor, or both flow and heat exchanger sensors, defective.
- Worcester Bosch 2971System pressure too low.
- Worcester Bosch 229Flame failed during burner operation.
- Worcester Bosch 10171017 indicates that the system pressure is too low.
Worcester Bosch · Greenstar 2000 Combi
- Worcester Bosch 2971System pressure too low
- Worcester Bosch 281Pump pressure increase too low
- Worcester Bosch 2941Insufficient flow rate in boiler
- Worcester Bosch 2963Flow and heat exchanger temperature sensor signal outside permissible range
- Worcester Bosch 2964Flow rate in heat exchanger too low
- Worcester Bosch 2965Flow temperature too high
- Worcester Bosch 2966Flow temperature rise in heat exchanger too rapid
- Worcester Bosch 2967Flow/heat exchanger temperature sensor difference too great
- Worcester Bosch 341Temperature rise at boiler too rapid
- Worcester Bosch 342Temperature rise during hot water mode too rapid
- Worcester Bosch 350Short circuit at flow temperature sensor
- Worcester Bosch 351Flow temperature sensor interrupted
- Worcester Bosch 356Power supply for the boiler is too low
- Worcester Bosch 245Internal electronics fault: state out of range.
- Worcester Bosch 249Internal software error in the boiler electronics.
- Worcester Bosch 250Default software error in the boiler electronics.
- Worcester Bosch 251Flash memory test error in the boiler electronics.
- Worcester Bosch 252Stack overflow error in the boiler electronics.
- Worcester Bosch 253RAM test error in the boiler electronics.
- Worcester Bosch 254EEPROM test error in the boiler electronics.
- Worcester Bosch 258Internal watchdog error in the boiler electronics.
- Worcester Bosch 259AD reference error in the boiler electronics.
- Worcester Bosch 262Internal operating-system error in the boiler electronics.
- Worcester Bosch 263Program sequence error in the boiler electronics.
- Worcester Bosch 604System fault in the burner control unit.
- Worcester Bosch 2051Internal fault.
- Worcester Bosch 2908System fault in the boiler electronics / basic controller.
- Worcester Bosch 2914No communication between the appliance controller and the burner module.
- Worcester Bosch 2922Internal fault.
- Worcester Bosch 2928Internal error.
- Worcester Bosch 2931Illegal instruction executed by the microcontroller (internal electronics fault).
- Worcester Bosch 2957Internal burner control error.
- Worcester Bosch 2958System fault in the appliance electronics.
- Worcester Bosch 2973System fault in the boiler electronics / basic controller.
- Worcester Bosch 2974Internal fault.
- Worcester Bosch 246System fault in the boiler electronics / basic controller.
- Worcester Bosch 247System fault in the boiler electronics / basic controller.
- Worcester Bosch 256System fault in the boiler electronics / basic controller.
- Worcester Bosch 257System fault in the boiler electronics / basic controller.
- Worcester Bosch 2909System fault in the boiler electronics / basic controller.
- Worcester Bosch 2930System fault in the boiler electronics / basic controller.
- Worcester Bosch 2932System fault in the boiler electronics / basic controller.
- Worcester Bosch 2959System fault in the appliance electronics.
- Worcester Bosch 2960System fault in the appliance electronics.
- Worcester Bosch 328Brief mains voltage failure
- Worcester Bosch 2940Low voltage
- Worcester Bosch 232Boiler locked by external switching contact
- Worcester Bosch 1021Hot water temperature sensor faulty
- Worcester Bosch 810Hot water remains cold
- Worcester Bosch 2945Too many short heat demands in a short time
- Worcester Bosch 2981Locking fault (boiler locked, contact a qualified heating engineer)
- Worcester Bosch 233Boiler identification module or electronics faulty
- Worcester Bosch 235Conflicting versions of boiler electronics and boiler identification
- Worcester Bosch 237System fault
- Worcester Bosch 242Boiler electronics system fault
- Worcester Bosch 244System fault boiler electronics / basic controller
- Worcester Bosch 227227 indicates that no flame signal was detected after ignition.
- Worcester Bosch 224224 indicates that the safety temperature limiter has tripped.
- Worcester Bosch 1073Short circuit of the flow temperature sensor.
- Worcester Bosch 1074No signal from the flow temperature sensor.
- Worcester Bosch 1075Short circuit of the heat exchanger temperature sensor.
- Worcester Bosch 1076No signal from the heat exchanger temperature sensor.
- Worcester Bosch 1037Outside temperature sensor faulty - heating back-up operation active.
- Worcester Bosch 1068Outside temperature sensor or lambda probe faulty.
- Worcester Bosch 1019Incorrect pump type detected (pump communication failure or wrong pump fitted).
- Worcester Bosch 1018Maintenance interval expired: a service is due.
- Worcester Bosch 1010No BUS communication between the boiler and its display or controls.
- Worcester Bosch 323BUS signal cannot be processed (EMS controls connection).
- Worcester Bosch 360Incomparable code plug: the code plug does not match the boiler.
- Worcester Bosch 362Boiler identification module or boiler electronics faulty (wrong or damaged code plug).
- Worcester Bosch 2946Incorrect code plug detected.
- Worcester Bosch 2085Internal fault.
- Worcester Bosch 2943Mains voltage too low.
- Worcester Bosch 2972Mains voltage too low.
Worcester Bosch · Greenstar Highflow CDi ErP
- Worcester Bosch b2Data error.
- Worcester Bosch b3Data error.
- Worcester Bosch b4Data error.
- Worcester Bosch b5Data error.
- Worcester Bosch b6Data error.
- Worcester Bosch d5Condensate pump fault.
- Worcester Bosch A7Hot water NTC sensor defective.
- Worcester Bosch E2CH flow NTC sensor defective.
- Worcester Bosch E9Safety temp. limiter in CH flow has tripped.
- Worcester Bosch U1Boiler flow temperature is too high; the boiler will shut down until it has cooled down.
- Worcester Bosch A1Pump dry run detection or pump running in air.
- Worcester Bosch A5Tank NTC defect.
- Worcester Bosch A8Break in communication to weather compensating clip-in control or Greenstar Comfort II RF (EMS communication error).
- Worcester Bosch b1Code plug not detected.
- Worcester Bosch d3External temperature limiter fault.
- Worcester Bosch d6Internal heat bank overflow.
- Worcester Bosch F0Internal error.
- Worcester Bosch F1ROM error check.
- Worcester Bosch FdReset button pressed by mistake.
- Worcester Bosch SEService required.
Worcester Bosch · Greenstar 4000 System
- Worcester Bosch 810Hot water remains cold.
- Worcester Bosch 811Hot water heating: thermal disinfection failed.
- Worcester Bosch 1010No communication via EMS BUS connection.
- Worcester Bosch 1018Maintenance interval expired.
- Worcester Bosch 1021Cylinder charging or hot water temperature sensor faulty.
- Worcester Bosch 1022Cylinder temp. sensor faulty or contact problems.
- Worcester Bosch 1023Maximum run time including standby time reached.
- Worcester Bosch 1037Outside temp. sensor faulty - heating back-up operation active.
- Worcester Bosch 1068Outside temp. sensor or lambda probe faulty.
- Worcester Bosch 1070Maintenance is due on <dd.mm.yyyy> please call your service engineer.
- Worcester Bosch 1071Maintenance is now due please call your service engineer.
- Worcester Bosch 1072Maintenance is overdue please call your service engineer.
- Worcester Bosch 1073Short-circuit at flow temp. sensor.
- Worcester Bosch 1074No signal from flow temperature sensor.
- Worcester Bosch 1075Heat exchanger temp sensor short circuit.
- Worcester Bosch 1076Heat exchanger temp sensor disconnected.
- Worcester Bosch 2085Internal fault.
- Worcester Bosch 2908System fault boiler electronics / basic controller.
- Worcester Bosch 2914Boiler electr. system fault.
- Worcester Bosch 2928Internal fault.
- Worcester Bosch 2931System fault boiler electronics / basic controller.
- Worcester Bosch 2940System fault burner control unit.
- Worcester Bosch 2957Boiler electr. system fault.
- Worcester Bosch 2972Mains voltage too low.
Worcester Bosch · Greenstar 8000 Life System
- Worcester Bosch 604System fault burner control unit.
- Worcester Bosch 811Hot water heating: thermal disinfection failed.
- Worcester Bosch 1010No communication via EMS BUS connection.
- Worcester Bosch 1018Maintenance interval expired.
- Worcester Bosch 1022Cylinder temp. sensor faulty or contact problems.
- Worcester Bosch 1023Maximum run time including standby time reached.
- Worcester Bosch 1037Outside temp. sensor faulty - heating back-up operation active.
- Worcester Bosch 1068Outside temp. sensor or lambda probe faulty.
- Worcester Bosch 1070Maintenance is due on <dd.mm.yyyy> please call your service engineer.
- Worcester Bosch 1071Maintenance is now due please call your service engineer.
- Worcester Bosch 1072Maintenance is overdue please call your service engineer.
- Worcester Bosch 1075Heat exchanger temp sensor short circuit.
- Worcester Bosch 1076Heat exchanger temp sensor disconnected.
- Worcester Bosch 2085Internal fault.
- Worcester Bosch 2908System fault boiler electronics / basic controller.
- Worcester Bosch 2931System fault boiler electronics / basic controller.
- Worcester Bosch 2940System fault burner control unit.
- Worcester Bosch 2957Boiler electr. system fault.
- Worcester Bosch 2972Mains voltage too low.
Worcester Bosch · Greenstar 8000 Life Regular
- Worcester Bosch 604System fault burner control unit.
- Worcester Bosch 1010No communication via EMS BUS connection.
- Worcester Bosch 1018Maintenance interval expired.
- Worcester Bosch 1022Cylinder temp. sensor faulty or contact problems.
- Worcester Bosch 1023Maximum run time including standby time reached.
- Worcester Bosch 1037Outside temp. sensor faulty - heating back-up operation active.
- Worcester Bosch 1068Outside temp. sensor or lambda probe faulty.
- Worcester Bosch 1070Maintenance is due on <dd.mm.yyyy> please call your service engineer.
- Worcester Bosch 1071Maintenance is now due please call your service engineer.
- Worcester Bosch 1072Maintenance is overdue please call your service engineer.
- Worcester Bosch 1075Heat exchanger temp sensor short circuit.
- Worcester Bosch 1076Heat exchanger temp sensor disconnected.
- Worcester Bosch 2085Internal fault.
- Worcester Bosch 2908System fault boiler electronics / basic controller.
- Worcester Bosch 2972Mains voltage too low.
Worcester Bosch · Greenstar 30i
- Worcester Bosch EAEA indicates that the boiler could not complete its start-up sequence; on this range a blocked or frozen condensate pipe is one documented possibility.
- Worcester Bosch A1 281Pump stuck or running dry.
- Worcester Bosch A7Domestic hot water sensor defect (cause 808).
- Worcester Bosch E2Flow temperature sensor shorted or disconnected (cause 222/223/350/351).
- Worcester Bosch D4 341Primary flow temperatures rising too fast.
- Worcester Bosch E9 276Primary flow temperature exceeded 95 °C.
- Worcester Bosch FDElectrical interruption — power interrupted during a lockout (Fd 231).
- Worcester Bosch 9UInternal error — control box or HCM defective or loose (9U 233).
- Worcester Bosch CC 800Outdoor sensor defect (only when an outdoor sensor accessory is fitted).
- Worcester Bosch H03Planned maintenance required — set burner-hours service interval expired.
- Worcester Bosch H13Service due — set maintenance interval (months) expired.
- Worcester Bosch H09Maintenance code: communication to the pump has failed.
- Worcester Bosch H11Maintenance code: hot water temperature sensor defect.
- Worcester Bosch H29Maintenance code: outdoor sensor defect (only when an outdoor sensor accessory is fitted).
- Worcester Bosch H08Maintenance code: the set service date has expired and maintenance is required.
- Worcester Bosch b7Internal error: control box or HCM defective (cause 257).
- Worcester Bosch F1Internal error: control box or HCM defective (cause 259/263).
- Worcester Bosch A8HCM invalid: the fitted HCM does not match the control box or display type (cause 361).
- Worcester Bosch EHInternal error: control box or HCM defective (cause 258).
Worcester Bosch · Greenstar i System ErP
- Worcester Bosch EAThe manual associates the EA fault with no or low gas supply, a blocked condensate outlet, or a blocked flue outlet.
- Worcester Bosch A1 281Pump stuck or running dry.
- Worcester Bosch E2Flow temperature sensor shorted or disconnected (cause 222/223/350/351).
- Worcester Bosch D4 341Primary flow temperatures rising too fast.
- Worcester Bosch E9 276Primary flow temperature exceeded 95 °C.
- Worcester Bosch FDElectrical interruption — power interrupted during a lockout (Fd 231).
- Worcester Bosch 9UInternal error — control box or HCM defective or loose (9U 233).
- Worcester Bosch CC 800Outdoor sensor defect (only when an outdoor sensor accessory is fitted).
- Worcester Bosch H03Planned maintenance required — set burner-hours service interval expired.
- Worcester Bosch H13Service due — set maintenance interval (months) expired.
- Worcester Bosch H12Hot water cylinder (storage) sensor defect.
- Worcester Bosch H09Maintenance code: communication to the pump has failed.
- Worcester Bosch H29Maintenance code: outdoor sensor defect (only when an outdoor sensor accessory is fitted).
- Worcester Bosch H08Maintenance code: the set service date has expired and maintenance is required.
- Worcester Bosch b7Internal error: control box or HCM defective (cause 257).
- Worcester Bosch F1Internal error: control box or HCM defective (cause 259/263).
- Worcester Bosch A8HCM invalid: the fitted HCM does not match the control box or display type (cause 361).
- Worcester Bosch EHInternal error: control box or HCM defective (cause 258).
Worcester Bosch · Greenstar CDi Classic ErP Combi
- Worcester Bosch E9Safety temp. limiter in CH flow has tripped
- Worcester Bosch A7Hot water NTC sensor defective
- Worcester Bosch E2CH flow NTC sensor defective
- Worcester Bosch F7Flame detected even though boiler switched off
- Worcester Bosch FAFlame detected after gas shut off
- Worcester Bosch A8Break in communication to FX controls.
- Worcester Bosch b1Code plug not detected.
- Worcester Bosch F0Internal error.
- Worcester Bosch FdReset button pressed by mistake.
- Worcester Bosch A1Pump has run dry or pump has stalled/seized.
- Worcester Bosch EAEA means that a flame was not detected.
- Worcester Bosch C6C6 indicates that the fan speed is too low.
Worcester Bosch · Greenstar Si Compact ErP
- Worcester Bosch CE 207System water pressure too low.
- Worcester Bosch A1 281Pump stuck or running in air / little or no water in the system.
- Worcester Bosch 9UHCM/code plug problem, faulty or not connected.
- Worcester Bosch D1Return sensor error.
- Worcester Bosch E2Flow sensor short or open circuit.
- Worcester Bosch FDMains power error, electrical power interruption.
- Worcester Bosch H11Hot water outlet sensor defect; hot water can still be delivered but with less control.
- Worcester Bosch H13Service due — set maintenance interval (months) expired.
- Worcester Bosch A7Domestic hot water sensor defect.
- Worcester Bosch b7Internal error, control board fault.
- Worcester Bosch 9AIncorrect HCM (heat control module) fitted.
- Worcester Bosch CFWater pressure sensor not connected or short-circuit.
- Worcester Bosch D3External cut-off switch activated.
- Worcester Bosch H5No feedback from pump.
- Worcester Bosch A8EMS communication error.
- Worcester Bosch E4Preheat sensor on hot water inlet short or open circuit.
- Worcester Bosch CCOutdoor sensor defect.
- Worcester Bosch CE 266No pressure variation detected after switching pump.
- Worcester Bosch EA 227EA 227 indicates that no flame was detected after ignition; documented causes include no or low gas supply, a blocked condensate outlet, or a blocked flue.
- Worcester Bosch EA 229EA 229 indicates loss of the flame signal during operation.
Worcester Bosch · Greenstar CDi Compact ErP
- Worcester Bosch CE 207System water pressure too low.
- Worcester Bosch A1 281Pump stuck or running in air, little or no water in the system.
- Worcester Bosch A7Domestic hot water sensor defect.
- Worcester Bosch E2Flow sensor short or open circuit.
- Worcester Bosch D1Return sensor error.
- Worcester Bosch F0Internal error.
- Worcester Bosch FDMains power error, electrical power interruption.
- Worcester Bosch 9UHCM/code plug problem, faulty or not connected.
- Worcester Bosch b7Internal error, control board fault.
- Worcester Bosch CFWater pressure sensor not connected or short-circuit.
- Worcester Bosch D3External cut-off switch activated.
- Worcester Bosch H5No feedback from pump.
- Worcester Bosch A8EMS communication error.
- Worcester Bosch E4Preheat sensor on hot water inlet short or open circuit.
- Worcester Bosch CCOutdoor sensor defect.
- Worcester Bosch CE 266No pressure variation detected after switching pump.
Worcester Bosch · Greenstar i System Compact ErP
- Worcester Bosch CE 207System water pressure too low.
- Worcester Bosch A1 281Pump stuck or running in air, little or no water in the system.
- Worcester Bosch E2Flow sensor short or open circuit.
- Worcester Bosch D1Return sensor error.
- Worcester Bosch F0Internal error.
- Worcester Bosch FDMains power error, electrical power interruption.
- Worcester Bosch 9UHCM/code plug problem, faulty or not connected.
- Worcester Bosch A7Domestic hot water sensor defect.
- Worcester Bosch b7Internal error, control board fault.
- Worcester Bosch 9AIncorrect HCM (heat control module) fitted.
- Worcester Bosch CFWater pressure sensor not connected or short-circuit.
- Worcester Bosch D3External cut-off switch activated.
- Worcester Bosch H5No feedback from pump.
- Worcester Bosch A8EMS communication error.
- Worcester Bosch E4Preheat sensor on hot water inlet short or open circuit.
- Worcester Bosch CCOutdoor sensor defect.
- Worcester Bosch CE 266No pressure variation detected after switching pump.
- Worcester Bosch H11Maintenance code: hot water outlet sensor defect; hot water can still be delivered but with less control.
- Worcester Bosch H13Maintenance code: the service interval time has expired.
Worcester Bosch · Greenstar 8000 Style System
- Worcester Bosch 604System fault burner control unit.
- Worcester Bosch 811Hot water heating: thermal disinfection failed.
- Worcester Bosch 1010No communication via EMS BUS connection.
- Worcester Bosch 1018Maintenance interval expired.
- Worcester Bosch 1022Cylinder temp. sensor faulty or contact problems.
- Worcester Bosch 1023Maximum run time including standby time reached.
- Worcester Bosch 1037Outside temp. sensor faulty - heating back-up operation active.
- Worcester Bosch 1068Outside temp. sensor or lambda probe faulty.
- Worcester Bosch 1070Maintenance is due on <dd.mm.yyyy> please call your service engineer.
- Worcester Bosch 1071Maintenance is now due please call your service engineer.
- Worcester Bosch 1072Maintenance is overdue please call your service engineer.
- Worcester Bosch 1075Heat exchanger temp sensor short circuit.
- Worcester Bosch 1076Heat exchanger temp sensor disconnected.
- Worcester Bosch 2085Internal fault.
- Worcester Bosch 2908System fault boiler electronics / basic controller.
- Worcester Bosch 2972Mains voltage too low.
Worcester Bosch · Greenstar 8000+ System
- Worcester Bosch 604System fault burner control unit.
- Worcester Bosch 811Hot water heating: thermal disinfection failed.
- Worcester Bosch 815Low loss header temp. sensor faulty.
- Worcester Bosch 1010No communication via EMS BUS connection.
- Worcester Bosch 1013Max. combustion point reached.
- Worcester Bosch 1018Maintenance interval expired.
- Worcester Bosch 1022Cylinder temp. sensor faulty or contact problems.
- Worcester Bosch 1023Maximum run time including standby time reached.
- Worcester Bosch 1037Outside temp. sensor faulty - heating back-up operation active.
- Worcester Bosch 1068Outside temp. sensor or lambda probe faulty.
- Worcester Bosch 1070Maintenance is due on <dd.mm.yyyy> please call your service engineer.
- Worcester Bosch 1071Maintenance is now due please call your service engineer.
- Worcester Bosch 1072Maintenance is overdue please call your service engineer.
- Worcester Bosch 1075Heat exchanger temp sensor short circuit.
- Worcester Bosch 1076Heat exchanger temp sensor disconnected.
- Worcester Bosch 2085Internal fault.
- Worcester Bosch 2908System fault boiler electronics / basic controller.
- Worcester Bosch 2972Mains voltage too low.
Worcester Bosch · Greenstar 8000+ Combi
- Worcester Bosch 604System fault burner control unit.
- Worcester Bosch 815Low loss header temp. sensor faulty.
- Worcester Bosch 1010No communication via EMS BUS connection.
- Worcester Bosch 1013Max. combustion point reached.
- Worcester Bosch 1018Maintenance interval expired.
- Worcester Bosch 1021Cylinder charging or hot water temperature sensor faulty.
- Worcester Bosch 1023Maximum run time including standby time reached.
- Worcester Bosch 1037Outside temp. sensor faulty - heating back-up operation active.
- Worcester Bosch 1068Outside temp. sensor or lambda probe faulty.
- Worcester Bosch 1070Maintenance is due on <dd.mm.yyyy> please call your service engineer.
- Worcester Bosch 1071Maintenance is now due please call your service engineer.
- Worcester Bosch 1072Maintenance is overdue please call your service engineer.
- Worcester Bosch 1075Heat exchanger temp sensor short circuit.
- Worcester Bosch 1076Heat exchanger temp sensor disconnected.
- Worcester Bosch 2085Internal fault.
- Worcester Bosch 2908System fault boiler electronics / basic controller.
- Worcester Bosch 2972Mains voltage too low.
Worcester Bosch · Greenstar 8000 F Combi
- Worcester Bosch 604System fault burner control unit.
- Worcester Bosch 815Low loss header temp. sensor faulty.
- Worcester Bosch 1010No communication via EMS BUS connection.
- Worcester Bosch 1013Max. combustion point reached.
- Worcester Bosch 1018Maintenance interval expired.
- Worcester Bosch 1021Cylinder charging or hot water temperature sensor faulty.
- Worcester Bosch 1023Maximum run time including standby time reached.
- Worcester Bosch 1037Outside temp. sensor faulty - heating back-up operation active.
- Worcester Bosch 1068Outside temp. sensor or lambda probe faulty.
- Worcester Bosch 1070Maintenance is due on <dd.mm.yyyy> please call your service engineer.
- Worcester Bosch 1071Maintenance is now due please call your service engineer.
- Worcester Bosch 1072Maintenance is overdue please call your service engineer.
- Worcester Bosch 1075Heat exchanger temp sensor short circuit.
- Worcester Bosch 1076Heat exchanger temp sensor disconnected.
- Worcester Bosch 2085Internal fault.
- Worcester Bosch 2908System fault boiler electronics / basic controller.
- Worcester Bosch 2972Mains voltage too low.
Worcester Bosch · Greenstar 8000+ Regular
- Worcester Bosch 604System fault burner control unit.
- Worcester Bosch 815Low loss header temp. sensor faulty.
- Worcester Bosch 1010No communication via EMS BUS connection.
- Worcester Bosch 1013Max. combustion point reached.
- Worcester Bosch 1018Maintenance interval expired.
- Worcester Bosch 1022Cylinder temp. sensor faulty or contact problems.
- Worcester Bosch 1023Maximum run time including standby time reached.
- Worcester Bosch 1037Outside temp. sensor faulty - heating back-up operation active.
- Worcester Bosch 1068Outside temp. sensor or lambda probe faulty.
- Worcester Bosch 1070Maintenance is due on <dd.mm.yyyy> please call your service engineer.
- Worcester Bosch 1071Maintenance is now due please call your service engineer.
- Worcester Bosch 1072Maintenance is overdue please call your service engineer.
- Worcester Bosch 1075Heat exchanger temp sensor short circuit.
- Worcester Bosch 1076Heat exchanger temp sensor disconnected.
- Worcester Bosch 2085Internal fault.
- Worcester Bosch 2908System fault boiler electronics / basic controller.
- Worcester Bosch 2972Mains voltage too low.
Worcester Bosch · Greenstar 8000 F Regular
- Worcester Bosch 604System fault burner control unit.
- Worcester Bosch 815Low loss header temp. sensor faulty.
- Worcester Bosch 1010No communication via EMS BUS connection.
- Worcester Bosch 1013Max. combustion point reached.
- Worcester Bosch 1018Maintenance interval expired.
- Worcester Bosch 1022Cylinder temp. sensor faulty or contact problems.
- Worcester Bosch 1023Maximum run time including standby time reached.
- Worcester Bosch 1037Outside temp. sensor faulty - heating back-up operation active.
- Worcester Bosch 1068Outside temp. sensor or lambda probe faulty.
- Worcester Bosch 1070Maintenance is due on <dd.mm.yyyy> please call your service engineer.
- Worcester Bosch 1071Maintenance is now due please call your service engineer.
- Worcester Bosch 1072Maintenance is overdue please call your service engineer.
- Worcester Bosch 1075Heat exchanger temp sensor short circuit.
- Worcester Bosch 1076Heat exchanger temp sensor disconnected.
- Worcester Bosch 2085Internal fault.
- Worcester Bosch 2908System fault boiler electronics / basic controller.
- Worcester Bosch 2972Mains voltage too low.
Worcester Bosch · Greenstar 1000 Combi
- Worcester Bosch 604System fault burner control unit.
- Worcester Bosch 1010No BUS communication.
- Worcester Bosch 1013Max. combustion point reached.
- Worcester Bosch 1018Maintenance interval expired.
- Worcester Bosch 1021Cylinder charging or hot water temperature sensor faulty.
- Worcester Bosch 1023Maximum run time including standby time reached.
- Worcester Bosch 1068Outside temp. sensor or lambda probe faulty.
- Worcester Bosch 1073Short circuit of the flow temperature sensor.
- Worcester Bosch 1074No signal from flow temperature sensor.
- Worcester Bosch 2085Internal fault.
- Worcester Bosch 2908System fault boiler electronics/basic controller.
- Worcester Bosch 2972Mains voltage too low.
Look up a fault code
Enter the code as it appears on your Worcester Bosch boiler display. We show published, verified entries for the matching range.