BoilerFaultCodesYour boiler is trying to start up but cannot light the gas to create a flame, meaning you will have no heating or hot water.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Flashing lamp, alone or simultaneously with another lamp (no ignition signal from the full sequence ignition device).
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 attempts. The most common reasons are a lack of gas reaching the unit, worn-out spark electrodes that can no longer create an ignition, or a faulty internal component failing to send the 'start' signal.
This fault is more common during the first cold snap of autumn when internal components that have been idle over summer seize up or fail upon restart.
DIY fix possible
Check if other gas appliances, like a hob, are working to confirm gas supplyVerify that your prepaid gas meter (if applicable) has creditPress the reset button or turn the control knob to 'Reset' for 2 seconds
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Protect yourself from future repair bills
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Ideal Mini HE is discontinued — time for a new one?
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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