Worcester Bosch · Greenstar 2000 Combi
224 boiler fault code
Greenstar 2000 Combi
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What 224 means
224 indicates that the safety temperature limiter has tripped.
Safe check
Use one reset by pressing both arrow buttons together until H and ! are no longer displayed.
When to contact an engineer
If the code remains after one reset, contact a Gas Safe registered engineer.
Safety notice
A boiler fault code alone is not a gas or carbon-monoxide emergency. If you smell gas, a CO alarm sounds, anyone feels unwell, or there is an unsafe flame, leave and call 0800 111 999 from outside.
Source and provenance
- Greenstar 2000 Combi Installation Instructions · §11.2 fault-code table, printed p. 79 · 6721839340
installation instructions
2023/06 · document 6721839340
- Greenstar 2000 Combi User Instructions · §8 and §8.1, printed p. 15 · 6 721 839 343
user instructions
2023/04 · document 6 721 839 343
Renting? Report it to your landlord or housing provider first. They are responsible for gas safety and boiler repairs, and the repair should not cost you.
Did this fix it?
After: Reset the boiler once