Orange light (second) High

Boiler Fault Code Orange light (second)

Also written as ORANGELIGHTSECOND — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code Orange light (second) 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 power coming from the thermostat while the main power is also on, which usually means an internal electrical component has failed or stuck. (As reported on Baxi Bermuda 60/4)

Pick your boiler brand for the Orange light (second) fix

Source

Information for the Orange light (second) 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