BoilerFaultCodesWhat the manual says
Manufacturer manualFalse flame - There is possibly a problem with the power supply.
From this model's manual
Verified against the Keston C36 installation & service manual, page 32.
What causes this fault?
This fault occurs when the boiler's control system detects a flame signal at a time when there shouldn't be a fire, such as during the startup checks. The most common reason is a sensor that has become damp or damaged and is sending a 'ghost' signal, or a fault within the main circuit board that is misreading electrical noise as a flame.
Engineer required
This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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