BoilerFaultCodesYour boiler has detected an internal electronics communication error, which has caused it to stop working for safety.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: GFA error (not applicable)
What causes this fault?
This fault occurs when the boiler's main control board loses its digital connection with the internal safety sensors or ignition components. The most common reason is a physical failure within the printed circuit board's circuitry or a loose connection in the internal wiring loom that prevents data from flowing correctly.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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