Select a fault code
Boiler failed to ignite after maximum attempts.
Flame signal when burner should be off. Serious fault.
Boiler overheated, safety thermostat has cut it out.
Fan not operating at correct speed.
Flow temperature has exceeded safe operating limits.
Flow temperature sensor has failed.
Return temperature sensor has failed.
System pressure has dropped below minimum level.
The pump is not operating correctly.
Gas valve fault detected.
Main circuit board fault.
Condensate drain blocked or frozen.
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