BoilerFaultCodesYour boiler has failed to ignite properly, meaning it cannot create the flame needed to heat your home or water.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: FAIL POINT K
What causes this fault?
This fault occurs when the boiler attempts to start but cannot detect a stable flame after several tries. It is usually caused by a lack of gas reaching the burner or a failure in the sparking system that triggers the ignition. In some cases, a faulty internal sensor may simply fail to recognize that the flame is actually lit, leading to a safety shutdown.
This fault is slightly more common in winter, as extremely cold temperatures can cause external gas regulators to freeze or internal components to fail under heavy demand.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
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A boiler cover plan would cover faults like 2 lights flashing fast — no call-out fees, no surprises.
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Parts for discontinued models can be hard to find and expensive. A new A-rated boiler could save you money on both repairs and energy bills.
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