E270 High

Boiler Fault Code E270

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code E270 appears across 3 boiler brands and 27 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has sensed it is getting too hot too quickly, likely because water isn't moving through the system properly. (As reported on Baxi 600 Combi (range))

Pick your boiler brand for the E270 fix

Baxi E270 24 models Main E270 1 model Potterton E270 2 models

Source

Information for the E270 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