How much does it cost to fix boiler error code E168?

Typical repair cost for the boiler E168 fault is £280-450 including labour.

E168 High

Boiler Fault Code E168

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code E168 appears across 2 boiler brands and 25 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 an internal electrical error that is preventing it from running safely, and it usually means the main control board is confused or failing. (As reported on Potterton Promax)

Pick your boiler brand for the E168 fix

Baxi E168 24 models Potterton E168 1 model

Source

Information for the E168 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