E.01 – .04 High
Your boiler is struggling to keep its flame lit and has safely shut down after repeatedly failing to stay on.
Technical description: Loss of flame detected 5 times in 24 hours (with burner on).
Typical repair cost: £100-350 (including labour)
DIY fix possible
Check that your gas emergency control valve is open and any pre-paid gas meter has credit.Verify if other gas appliances, like a hob, are working to rule out a wider gas supply issue.Restart the boiler by turning the selector switch to the 'Reset' position for five seconds.
Protect yourself from future repair bills
A boiler cover plan would cover faults like E.01 – .04 — no call-out fees, no surprises.
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Parts commonly replaced
- Ignition electrode
- Flame sensing probe
- Gas valve
- Condensate trap
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