BoilerFaultCodesTechnical description
Flame detected when gas valve off (false flame)
What causes this fault?
This fault occurs when the boiler's sensors detect a flame after the heating cycle has finished and the gas should be stopped. The most common reason is a component failure, such as a sticking gas valve that is letting tiny amounts of fuel through or a faulty sensor that is incorrectly reporting heat to the main control board.
Engineer required
This is a emergency severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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