How much does it cost to fix boiler error code E (number)?

Typical repair cost for the boiler E (number) fault is £120-350 including labour.

E (number) High

Boiler Fault Code E (number)

Also written as ENUMBER — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code E (number) appears across 1 boiler brand and 1 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has encountered a general operational error, likely due to an interruption in the gas supply or a failure during the ignition process. (As reported on Potterton Powermax HE)

Pick your boiler brand for the E (number) fix

Potterton E (number) 1 model

Source

Information for the E (number) 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