BoilerFaultCodesTechnical description
Ignition fault (lockout) caused by no gas, no detection
What causes this fault?
This fault occurs when the boiler attempts to start up but fails to establish a flame after several attempts. The most common reasons include a lack of gas reaching the unit, worn-out spark electrodes that can no longer ignite the fuel, or a faulty sensor that fails to tell the boiler the flame is safely lit.
This fault is more common during extreme cold snaps, as external gas meters or regulators can sometimes freeze, restricting the flow of gas to the property.
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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