BoilerFaultCodes F.183 High
Boiler Fault Code F.183
Also written as F183 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code F.183 appears across 1 boiler brand and 4 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler has lost its connection to the sensor that monitors the temperature of the water leaving the unit, meaning it cannot safely regulate heat. (As reported on Viessmann Vitodens 222-F B2TF)
Pick your boiler brand for the F.183 fix
Source
Information for the F.183 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