F.28 High
Your boiler has failed to ignite and has locked itself out for safety, meaning you currently have no heating or hot water.
Technical description: Failure during start up – ignition unsuccessful to start
Typical repair cost: £100-£350 (including labour)
DIY fix possible
Check if your home has gas by testing another gas appliance like a hob.Ensure your gas meter has credit and the isolation valve is open.Wait 5 minutes and then press the 'Reset' button (indicated by a flame with a cross through it).
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
- Spark Lead
- PCB
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