83 High
Boiler Fault Code 83
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 83 appears across 2 boiler brands and 5 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler is receiving power but cannot ignite because it isn't detecting the correct gas pressure required to start the burner. (As reported on Ideal Response)
Pick your boiler brand for the 83 fix
Source
Information for the 83 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