BoilerFaultCodesYour boiler has detected an electrical fault with the sensor that confirms the flame is lit, preventing it from firing up for your safety.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: FLAME DETECTION - SHORT CIRCUIT ERROR
What causes this fault?
This fault occurs when the boiler's control system receives a signal that a flame is present before it has even tried to light. The most common reason is a build-up of carbon or moisture on the sensing probe which creates an accidental electrical path, or a damaged wire touching the boiler casing.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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