How much does it cost to fix boiler error code ORANGE?

Typical repair cost for the boiler ORANGE fault is £150-300 including labour.

ORANGE High

Boiler Fault Code ORANGE

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code ORANGE appears across 1 boiler brand and 5 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler’s electrical supply is unstable, meaning the electricity coming from your home is not consistent enough for the boiler to operate safely. (As reported on Grant Vortex Eco)

Pick your boiler brand for the ORANGE fix

Grant ORANGE 5 models

Source

Information for the ORANGE 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