Low
2 on Atmos Intersystem HE26

Your boiler is currently running a routine internal check to ensure all its safety 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 Intersystem He26 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 for 5 to 10 minutes to allow the self-test process to complete automaticallyIf the code persists, try turning the boiler off at the fused spur for 30 secondsTurn the power back on and allow the unit to reboot

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