BoilerFaultCodes 8809 Medium
Boiler Fault Code 8809
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 8809 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 sensor is struggling to accurately read the water pressure or temperature, which may cause it to stop working to protect itself. (As reported on Vokera Maxin)
Pick your boiler brand for the 8809 fix
Source
Information for the 8809 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