How much does it cost to fix boiler error code T2B?

Typical repair cost for the boiler T2B fault is £180-£350 including labour.

T2B High

Boiler Fault Code T2B

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code T2B appears across 1 boiler brand and 1 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your heat pump has stopped working because a sensor that monitors the temperature of the internal cooling liquid has detected a problem or failed. (As reported on Ideal HP290)

Pick your boiler brand for the T2B fix

Ideal T2B 1 model

Source

Information for the T2B 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