F.361 High

Boiler Fault Code F.361

Also written as F361 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code F.361 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 is struggling to detect a flame when it tries to start, which means it cannot fire up to provide heating or hot water. (As reported on Viessmann Vitodens 200-W B2HF System)

Pick your boiler brand for the F.361 fix

Source

Information for the F.361 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