E72 High

Boiler Fault Code E72

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code E72 appears across 1 boiler brand and 12 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 a problem with the sensor that monitors the temperature of the water returning from your radiators, preventing it from heating your home correctly. (As reported on Alpha Evoke 10 / 18)

Pick your boiler brand for the E72 fix

Source

Information for the E72 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