Technical description
Flame loss during operation. This is a temporary error, wait for the boiler to re-ignite.
What causes this fault?
This fault occurs when the boiler's control system loses the signal that a flame is present while it is already firing. The most common reason is a dirty or worn flame sensing probe that can no longer 'see' the heat, or a temporary fluctuation in the gas supply that caused the burner to flicker out.
DIY fix possible
Wait for the boiler to complete its automatic restart processCheck that your external gas supply is turned on (check other gas appliances)Reset the boiler if the error persists after several minutes
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