BoilerFaultCodesYour boiler is currently struggling to light the flame it needs to provide heating and 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: ignition
What causes this fault?
This fault occurs when the boiler attempts to start up but cannot successfully establish or detect a steady flame. The most common reasons include a worn-out ignition electrode that can no longer create a spark, or a gas valve that isn't delivering enough fuel to the burner.
This fault can be more frequent during the first cold snap of autumn when internal components that have been idle over summer suddenly fail to operate correctly under strain.
DIY fix possible
Check if your gas supply is active by testing other gas appliances like a hobEnsure your gas meter has credit if you are on a pre-pay meterPress the Reset button (indicated by a flame with a line through it) and hold for 3 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
A boiler cover plan would cover faults like S.13 — no call-out fees, no surprises.
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Glow-worm Ultracom 24cx 30cx 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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