How much does it cost to fix boiler error code E41?

Typical repair cost for the boiler E41 fault is £120-£200 including labour.

E41 High

Boiler Fault Code E41

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 7 July 2026

Fault code E41 appears across 3 boiler brands and 6 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has stopped working because one of its internal temperature sensors has developed an electrical fault and can no longer send information to the main control board. (As reported on Potterton Powermax HE)

Pick your boiler brand for the E41 fix

Keston E41 3 models Potterton E41 2 models Vokera E41 1 model

Source

Information for the E41 fault code is sourced from the official service / installation manual for each model that displays it. Read more about how we source fault codes →

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026