BoilerFaultCodes.com
C2 Low Information

Your boiler is currently attempting to start up and light the flame to provide heating or hot water.

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

Technical description: Boiler is igniting

What causes this fault?

This code appears when the boiler is actively trying to light the gas to begin heating your home or water. It is a normal part of the start-up sequence and does not indicate a mechanical failure. If the code stays on the screen without the boiler firing up, it may be struggling to sense the flame or receive enough gas.

DIY fix possible

Wait a few moments for the boiler to complete the ignition sequenceCheck if the display changes to a temperature reading or a different status codeEnsure your gas supply is active if the code persists without the boiler firing up

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