How much does it cost to fix boiler error code red zone?

Typical repair cost for the boiler red zone fault is £180-450 including labour.

red zone High

Boiler Fault Code red zone

Also written as REDZONE — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code red zone appears across 1 boiler brand and 3 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 light properly because the internal pilot flame is being lost or is too weak to stay on. (As reported on Remeha Gas 610 Eco Pro)

Pick your boiler brand for the red zone fix

Remeha red zone 3 models

Source

Information for the red zone 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