BoilerFaultCodesYour boiler has failed to ignite after several attempts and has locked itself out for safety.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Final fault code (Refer to section 7.11)
What causes this fault?
This fault occurs when the boiler's control system attempts to light the burner but fails to detect a stable flame after several tries. This is usually caused by a lack of gas supply, a worn-out component that creates the spark, or a sensor that is no longer able to tell the boiler that the fire has actually started.
This fault is more frequent during extreme cold spells, as external gas meters or regulators can sometimes freeze and restrict the flow of gas to the appliance.
DIY fix possible
Check that your gas emergency control valve is open and you have credit on your meter.Check if other gas appliances in your home are working correctly.Press the reset button (turn the selector switch to the 'R' position for a few seconds and then back to 'On').
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 06 — 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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