F.28 High
Your boiler is trying to start up but cannot light the gas flame required to provide heat or hot water.
Technical description: Either insufficient gas in the system, a defective electrode, ignition lead or electronic ignitor
Typical repair cost: £100-280 (including labour)
DIY fix possible
Check that your gas emergency control valve is open and you have credit on your meter.Test another gas appliance, like a hob, to ensure gas is reaching the property.Press the 'Flame' or 'Reset' button on the boiler control panel for one second.
Protect yourself from future repair bills
A boiler cover plan would cover faults like F.28 — no call-out fees, no surprises.
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Parts commonly replaced
- Ignition Electrode
- Gas Valve
- Ignition Lead
- Spark Generator
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