BoilerFaultCodesTechnical description
Last fault
What causes this fault?
This fault occurs when the boiler attempts to light several times but fails to detect a stable flame. The most common reasons include a lack of gas reaching the burner, contaminated ignition electrodes that can no longer create a spark, or a faulty gas valve preventing the fuel from flowing correctly.
This fault is more frequent during extreme cold snaps, as the internal components work harder and any moisture in the external gas meter or pipework can freeze, restricting the gas supply.
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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