227 V High
Your boiler is failing to light the flame properly, meaning you will not have any heating or hot water until the issue is resolved.
Technical description: No flame signal after ignition burner control unit could need replacing
Typical repair cost: £120-450 (including labour)
DIY fix possible
Check if your gas supply is working by testing other gas appliances like a hobEnsure your gas meter has credit if you use a pre-payment meterPress the Reset button on the boiler display panel once to attempt a restart
Protect yourself from future repair bills
A boiler cover plan would cover faults like 227 V — no call-out fees, no surprises.
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Parts commonly replaced
- Flame Sensing Electrode
- Ignition Lead
- Gas Valve
- Burner Control Unit (PCB)
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