How much does it cost to fix boiler error code E29?

Typical repair cost for the boiler E29 fault is £120-£200 including labour.

E29 High

Boiler Fault Code E29

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 7 July 2026

Fault code E29 appears across 3 boiler brands and 5 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 connection problem that is preventing it from monitoring the system pressure correctly. (As reported on Potterton Powermax HE)

Pick your boiler brand for the E29 fix

Ariston E29 2 models Potterton E29 2 models Vokera E29 1 model

Source

Information for the E29 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