Low Information
C2 on Remeha Avanta Plus 35c

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

Find a Gas Safe engineer
Search the official register →

Related fault codes

Related guides you might find useful