F 06 Low

Boiler Fault Code F 06

Also written as F06 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code F 06 appears across 1 boiler brand and 4 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has lost communication with the weather sensor installed outside your home, so it is temporarily running as if it were a standard system without outdoor temperature compensation. (As reported on Ideal Logic+ Heat)

Pick your boiler brand for the F 06 fix

Source

Information for the F 06 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 7 July 2026