Select a fault code

Boiler failed to ignite. Common causes: low gas pressure, faulty electrode, frozen condensate.

Flame went out unexpectedly during a heating cycle.

Boiler has overheated and the safety thermostat has tripped.

A temperature sensor has failed or is reading incorrectly.

Fan or flue system problem detected.

Gas valve fault detected.

Main circuit board fault detected.

System pressure has dropped too low.

Air pressure switch not confirming fan operation.

Flame detected when burner should be off.

Pump not operating correctly.

Condensate pipe is blocked or frozen.