How much does it cost to fix boiler error code C32?

Typical repair cost for the boiler C32 fault is £120-200 including labour.

C32 Medium

Boiler Fault Code C32

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 7 July 2026

Fault code C32 appears across 3 boiler brands and 3 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler's external temperature sensor is not communicating correctly, which may cause your heating system to run inefficiently or shut down. (As reported on Sime Format B Combi)

Pick your boiler brand for the C32 fix

Halstead C32 1 model Ravenheat C32 1 model Sime C32 1 model

Source

Information for the C32 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