How much does it cost to fix boiler error code E154?

Typical repair cost for the boiler E154 fault is £120-£280 including labour.

E154 High

Boiler Fault Code E154

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code E154 appears across 3 boiler brands and 30 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 that water is circulting poorly or heating up too quickly, causing the temperature sensors to provide unusual readings. (As reported on Potterton Assure Combi / System)

Pick your boiler brand for the E154 fix

Baxi E154 24 models Main E154 1 model Potterton E154 5 models

Source

Information for the E154 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