Boiler Fault Code 36.0

Also written as 360 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 31 August 2026

Fault code 36.0 appears across 2 boiler brands and 6 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 communication error between the main control board and the internal electronic components, preventing it from firing up. (As reported on Grant Vortex)