9A362 High

Boiler Fault Code 9A362

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code 9A362 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 boiler’s internal computer chip is unrecognized or has been installed incorrectly, causing the system to stop working for safety reasons. (As reported on Worcester Bosch Greenstar Si Combi / i System)

Pick your boiler brand for the 9A362 fix

Worcester Bosch 9A362 1 model

Source

Information for the 9A362 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