Vokèra · Easi-Heat i
A70 boiler fault code
Easi-Heat i
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What A70 means
Flow sensor overtemperature / flow-return sensor differential (definitive); flow sensor fault (transitional)
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
- Vokèra Easi-Heat i Users Instructions · error code table, p. 8
installation manual
Official PDF path dated 2025/09; no document revision is printed