92 Low

Boiler Fault Code 92

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code 92 appears across 5 boiler brands and 17 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler’s solar heating panel sensor has a wiring fault, meaning the system cannot correctly read the temperature of the water heated by the sun. (As reported on Viessmann Vitodens 333-F)

Pick your boiler brand for the 92 fix

Alpha 92 4 models Grant 92 1 model Keston 92 1 model Viessmann 92 10 models Vokera 92 1 model

Source

Information for the 92 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 31 August 2026