BoilerFaultCodesYour boiler has briefly lost its flame and is trying to restart itself, which is often a temporary glitch that might resolve without any action.
This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.
Technical description: Temporary flame loss. Boiler will self reset, if fault continues you will see 3 red flashes.
What causes this fault?
This fault occurs when the boiler's internal sensors detect that the flame has unexpectedly gone out while the unit was supposed to be firing. The most common reasons include a slight instability in the gas supply or a build-up of carbon on the sensor that monitors the flame. Because it is often caused by a fleeting disruption, the boiler will attempt to relight itself automatically before locking out.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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A boiler cover plan would cover faults like 3 green flashes — no call-out fees, no surprises.
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