BoilerFaultCodes F72 High
Boiler Fault Code F72
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code F72 appears across 2 boiler brands and 17 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler has detected that its temperature sensors are giving conflicting readings or have failed, which has caused the system to stop working for safety. (As reported on Glow-worm Flexicom 18sx)
Pick your boiler brand for the F72 fix
Source
Information for the F72 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