BoilerFaultCodes WAIT BOILER THERMOSTAT Low
Boiler Fault Code WAIT BOILER THERMOSTAT
Also written as WAITBOILERTHERMOSTAT — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code WAIT BOILER THERMOSTAT 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 is currently performing an essential safety cooling process after finishing a burn cycle; please wait a few minutes for the status message to change before attempting any interaction with the unit. (As reported on Grant Spira)
Pick your boiler brand for the WAIT BOILER THERMOSTAT fix
Source
Information for the WAIT BOILER THERMOSTAT 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