Select a fault code
System water pressure has dropped below the minimum operating level.
Communication error between boiler and controls.
Hot water temperature sensor has failed.
The flow temperature sensor has short-circuited.
The return temperature sensor has short-circuited.
Boiler has reached dangerously high temperature.
The flue gas temperature sensor has failed.
Safety circuit or overheat thermostat has opened.
Boiler has failed to ignite after maximum attempts.
The burner has locked out.
Fault detected on the gas valve.
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