How much does it cost to fix boiler error code LED 6 yellow (0) [CH mode]?

Typical repair cost for the boiler LED 6 yellow (0) [CH mode] fault is £120-200 including labour.

LED 6 yellow (0) [CH mode] High

Boiler Fault Code LED 6 yellow (0) [CH mode]

Also written as LED6YELLOW0CHMODE — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code LED 6 yellow (0) [CH mode] 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 a faulty temperature reading caused by a sensor issue, which is preventing your central heating from turning on. (As reported on Ferroli Arean)

Pick your boiler brand for the LED 6 yellow (0) [CH mode] fix

Ferroli LED 6 yellow (0) [CH mode] 2 models

Source

Information for the LED 6 yellow (0) [CH mode] 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