BoilerFaultCodesAlpha 76 Fault Code
The Alpha 76 fault code means: your boiler is struggling to accurately measure the temperature of the water circulating through your heating system, so it has stopped working to prevent potential damage.. It appears on 11 Alpha models in our database.
Technical description: Return/flow sensor fault Possible failure of one or both sensors
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Alpha models that show the 76 fault code
Click a model for the full fault code list and model-specific repair notes.
- E-Tec 28 Repair: £120-220
- E-Tec 33 Repair: £120-220
- E-Tec NX Repair: £150-250
- E-Tec NXS Repair: £150-250
- E-Tec Plus 10 / 18 Repair: £120-£210
- E-Tec Plus NX Repair: £120-220
- E-Tec Regular Repair: £150-250
- E-Tec S Repair: £120-220
- Evoke Repair: £120-200
- Evoke 10 / 18 Repair: £120-190
- Evoke NX Repair: £120-220
Source
Alpha 76 fault code information on this page is sourced and cross-checked against the official Alpha service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026