BoilerFaultCodes Tap symbol light OFF High
Boiler Fault Code Tap symbol light OFF
Also written as TAPSYMBOLLIGHTOFF — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Tap symbol light OFF 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 failing to detect that you have turned on a hot tap, so it is not firing up to heat your water. (As reported on Ferroli Falcon)
Pick your boiler brand for the Tap symbol light OFF fix
Source
Information for the Tap symbol light OFF 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