LC High
Your boiler has tried to start five times in a row but failed to keep the flame alight, causing it to shut down as a safety precaution.
Technical description: 5 restarts within 15 minutes
Typical repair cost: £120-350 (including labour)
DIY fix possible
Check if other gas appliances in your home, like a hob, are working to ensure gas is reaching the propertyCheck if your gas meter has creditPress the 'Reset' button and wait for the boiler to restart
Protect yourself from future repair bills
A boiler cover plan would cover faults like LC — no call-out fees, no surprises.
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Parts commonly replaced
- Ignition Electrode
- Gas Valve
- Flame Sensing Probe
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