How much does it cost to fix boiler error code 40e?

Typical repair cost for the boiler 40e fault is £120-250 including labour.

40e High

Boiler Fault Code 40e

Also written as 40E — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 7 July 2026

Fault code 40e 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 has detected a failure to ignite or a loss of flame during operation, causing it to shut down for safety reasons. (As reported on Potterton Profile 60E)

Pick your boiler brand for the 40e fix

Potterton 40e 2 models

Source

Information for the 40e 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 7 July 2026