BoilerFaultCodes Red light (Egg timer symbol) Low
Boiler Fault Code Red light (Egg timer symbol)
Also written as REDLIGHTEGGTIMERSYMBOL — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Red light (Egg timer symbol) 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 is perfectly fine; it is currently in a brief, mandatory three-minute waiting period designed to protect the system after a heating cycle has just finished. (As reported on Ferroli Domina 102)
Pick your boiler brand for the Red light (Egg timer symbol) fix
Source
Information for the Red light (Egg timer symbol) 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