Worcester Bosch · Greenstar CDi Classic ErP Combi
A7 boiler fault code
Greenstar CDi Classic ErP Combi
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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.
What A7 means
Hot water NTC sensor defective
Safe check
Note the code shown on the display. Do not open, adjust or repeatedly reset the boiler. Contact a Gas Safe registered engineer.
When to contact an engineer
Note the code shown on the display. Do not open, adjust or repeatedly reset the boiler. 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
- Worcester Bosch Greenstar CDi Classic ErP User Instructions · §4.3 Error codes, Table 5, p. 16
user instructions
6 720 815 728 · 2015/05