Vokèra · Easi-Heat i
A40 boiler fault code
Easi-Heat i
Get a Gas Safe engineer
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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 A40 means
The manufacturer labels A40 “Fill the system”.
Safe check
Read and note A40 and the visible pressure value. If you choose to top up, follow only the Easi-Heat i manual filling instructions on printed page 6; stop if unsure.
When to contact an engineer
Arrange a Gas Safe registered engineer if the manual procedure is unclear, the pressure will not hold, or A40 returns.
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
- Easi-Heat i Installation Manual · fault table printed p. 7; pressure details printed p. 6
installation manual
Official PDF path dated 2025/09; no document revision is printed