BoilerFaultCodes.com
11-64 High

Your boiler is having trouble lighting the gas to start the heating process and may need to be restarted.

Technical description: Ignition error – possible fault with valve on the gas line due to it being open. Try resetting the boiler after the third unsuccessful ignition
Typical repair cost: £120-£350 (including labour)

DIY fix possible

Check that your gas emergency control valve is in the 'on' positionCheck if other gas appliances in your home are workingPress the 'Reset' button on the boiler control panel up to three times

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