How much does it cost to fix boiler error code E164?

Typical repair cost for the boiler E164 fault is £120-£210 including labour.

E164 Medium

Boiler Fault Code E164

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code E164 appears across 2 boiler brands and 29 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler is having trouble detecting when you turn on your hot water taps, which may result in your water staying cold. (As reported on Potterton Gold Combi HE)

Pick your boiler brand for the E164 fix

Baxi E164 24 models Potterton E164 5 models

Source

Information for the E164 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