How much does it cost to fix boiler error code F61?

Typical repair cost for the boiler F61 fault is £300-£550 including labour.

F61 High

Boiler Fault Code F61

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 7 July 2026

Fault code F61 appears across 3 boiler brands and 13 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler's internal computer brain has detected a serious electronic failure and can no longer control the heating software correctly. (As reported on Ferroli Bluehelix Tech)

Pick your boiler brand for the F61 fix

Ferroli F61 4 models Glow-worm F61 1 model Heatline F61 8 models

Source

Information for the F61 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