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Your boiler is receiving power and trying to work, but it has failed to start the burner to provide heat or hot water.
Technical description: Appliance on but not operating during demand
Typical repair cost: £100-280 (including labour)
DIY fix possible
Check if your thermostat is set higher than the current room temperatureEnsure your external programmer or timer is set to 'On'Check that the gas supply to the property is turned onPress the reset button on the front of the boiler
Protect yourself from future repair bills
A boiler cover plan would cover faults like Light on — no call-out fees, no surprises.
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Parts commonly replaced
- Ignition Electrode
- Gas Valve
- Fan
- Printed Circuit Board (PCB)
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