LED 5 red (1) [CH mode] Low

Boiler Fault Code LED 5 red (1) [CH mode]

Also written as LED5RED1CHMODE — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code LED 5 red (1) [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 is currently taking a mandatory short break to prevent the system from overheating, but it should resume normal operation automatically within three minutes. (As reported on Ferroli Arean)

Pick your boiler brand for the LED 5 red (1) [CH mode] fix

Ferroli LED 5 red (1) [CH mode] 2 models

Source

Information for the LED 5 red (1) [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