Boiler Fault Code Flame

Also written as FLAME — same fault.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026

Fault code Flame appears across 2 boiler brands and 8 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler is flagging that it detects a flame when it shouldn't be, which could indicate a sensor fault or an issue with the internal gas valve failing to shut off correctly. (As reported on Potterton Ultra 2 50 DV)