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

Typical repair cost for the boiler False Flame Fault fault is £120-280 including labour.

False Flame Fault High

Boiler Fault Code False Flame Fault

Also written as FALSEFLAMEFAULT — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code False Flame Fault appears across 1 boiler brand and 2 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler thinks a flame is present when it shouldn't be, causing the system to shut down for safety purposes. (As reported on Potterton Performa SL HE 9 2)

Pick your boiler brand for the False Flame Fault fix

Potterton False Flame Fault 2 models

Source

Information for the False Flame Fault 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