Worcester Bosch · Greenstar 8000+ System
1076 boiler fault code
Greenstar 8000+ System (GR8701iW 30 S / 35 S)
What 1076 means
Heat exchanger temp sensor disconnected.
A boiler fault code alone is not a gas or carbon-monoxide emergency. If you smell gas, a CO alarm sounds, or someone has possible carbon-monoxide symptoms, leave and call 0800 111 999 from outside.
Safe check: Make a note of the displayed code. Do not remove the boiler casing or inspect internal gas, electrical or combustion components.
Gas Safe registered engineer: Use only the homeowner action in your product guide. If this fault or maintenance message remains or returns, contact Worcester Bosch or a Gas Safe registered engineer.
Official source: Greenstar 8000+ System Installation and Maintenance Instructions 6721891100, §11.1.2 Fault code table (Table 28), code 1076, printed p. 78Get a Gas Safe engineer
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