BoilerFaultCodesYour boiler is failing to light the gas even though it is trying to, which prevents your heating and hot water from working.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: No flame signal after ignition
What causes this fault?
This fault occurs when the boiler's internal control system cannot detect a flame after several attempts to light the gas. The most common reasons include a lack of gas supply to the unit, worn-out ignition parts that can no longer create a spark, or sensors that have become too dirty to 'see' the flame. It effectively means the boiler is entering a safety mode because it thinks it is unsafe to continue trying to ignite.
This fault is frequently seen during extreme cold snaps, as a frozen condensate pipe can back up into the boiler and prevent the burner from lighting.
DIY fix possible
Check if other gas appliances (like a hob) are working to ensure gas is reaching the propertyCheck if your gas meter has credit (if using a pre-payment meter)Hold the 'Reset' button on the front of the boiler for 3 seconds
Find a Gas Safe engineer
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A boiler cover plan would cover faults like 227 — no call-out fees, no surprises.
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Could it be time for a new boiler?
If repair costs are adding up, a new energy-efficient boiler could be the smarter long-term choice.
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