How much does it cost to fix boiler error code E2?

Typical repair cost for the boiler E2 fault is £90-160 including labour.

E2 High

Boiler Fault Code E2

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code E2 appears across 6 boiler brands and 85 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 faulty internal temperature sensor, which means it cannot accurately measure how hot the water is and has stopped running for safety. (As reported on Worcester Bosch Greenstar CDi Compact)

Pick your boiler brand for the E2 fix

Baxi E2 23 models Firebird E2 8 models Ideal E2 1 model Main E2 1 model Remeha E2 11 models Worcester Bosch E2 41 models

Source

Information for the E2 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