Third orange light High

Boiler Fault Code Third orange light

Also written as THIRDORANGELIGHT — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code Third orange light 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 is trying to light but the main burner is failing to catch fire, even though the ignition spark is clicking. (As reported on Baxi Bermuda 60/4)

Pick your boiler brand for the Third orange light fix

Source

Information for the Third orange light 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