BoilerFaultCodesYour boiler has tried to light several times but failed, causing the system to shut down 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: Boiler shutdown after failed ignition sequence
What causes this fault?
This fault occurs when the boiler's control system cannot detect a flame after several attempts to fire up. The most common reasons include a worn-out ignition spark electrode that cannot light the gas, or a faulty gas valve that isn't opening properly to allow fuel into the burner.
DIY fix possible
Check if other gas appliances, like a cooker, are working to confirm gas supplyPress the Reset button once to attempt a restartCheck that the condensate pipe (if applicable) is not frozen or blocked
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
A boiler cover plan would cover faults like RESET ON, BURNER LIT flashing fast (8 Hz) — no call-out fees, no surprises.
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Glow-worm Micron 30ff 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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