Low
2 on Atmos Interopen HE22

Your boiler is currently running a routine internal safety check to ensure all its sensors and systems are working correctly before it starts up.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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.

What the manual says

Manufacturer manual

Self-test

From this model's manual
Verified against the Atmos Interopen He22 installation & service manual, page 44.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

Wait 5 to 10 minutes for the self-test process to complete.If the boiler remains on this code for more than 15 minutes, perform a soft reset using the reset button.If the code persists, turn the boiler off at the fused spur for 30 seconds and switch it back on.

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