BoilerFaultCodes FP 1 0 Low
Boiler Fault Code FP 1 0
Also written as FP10 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code FP 1 0 appears across 1 boiler brand and 2 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler has detected that the water temperature has dropped too low and is automatically running to prevent the pipes from freezing. (As reported on Ideal Instinct2 24)
Pick your boiler brand for the FP 1 0 fix
Source
Information for the FP 1 0 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