How much does it cost to fix boiler error code Flame loss?

Typical repair cost for the boiler Flame loss fault is £150-350 including labour.

Flame loss High

Boiler Fault Code Flame loss

Also written as FLAMELOSS — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code Flame loss appears across 1 boiler brand and 1 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler is trying to start but the flame is cutting out immediately, which means it cannot safely keep the heating or hot water running. (As reported on Potterton Envoy 30)

Pick your boiler brand for the Flame loss fix

Potterton Flame loss 1 model

Source

Information for the Flame loss 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 27 April 2026