BoilerFaultCodesTechnical description
Led alarm (blink red)
What causes this fault?
This fault occurs when the boiler attempts to light the burner but fails to detect a stable flame. The most common reasons are a worn-out ignition electrode that cannot create a spark, a faulty gas valve preventing fuel from entering the burner, or a problem with the internal control board.
This fault can be more frequent during the first cold snap of winter when components that have sat idle all summer are suddenly forced to operate under high demand.
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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