How much does it cost to fix boiler error code 9A 362?

Typical repair cost for the boiler 9A 362 fault is £150-300 including labour.

9A 362 High

Boiler Fault Code 9A 362

Also written as 9A362 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 7 July 2026

Fault code 9A 362 appears across 1 boiler brand 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 computer is reporting that an incompatible or incorrect internal control part has been installed, preventing it from functioning correctly. (As reported on Worcester Bosch Greenstar 12i System)

Pick your boiler brand for the 9A 362 fix

Worcester Bosch 9A 362 3 models

Source

Information for the 9A 362 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