How much does it cost to fix boiler error code 2 02?

Typical repair cost for the boiler 2 02 fault is £120-220 including labour.

2 02 Medium

Boiler Fault Code 2 02

Also written as 202 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 7 July 2026

Fault code 2 02 appears across 2 boiler brands and 9 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler is struggling to read the temperature of the water in your separate storage tank because the sensor responsible for checking it has a loose connection or a faulty reading. (As reported on Ariston Clas HE R)

Pick your boiler brand for the 2 02 fix

Ariston 2 02 8 models Chaffoteaux 2 02 1 model

Source

Information for the 2 02 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