Low
180 on Atag iC28

This is not an error code, but merely a notification confirming that the boiler's manual testing mode has finished successfully.

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

No error: shortly visible when leaving chimney sweep function

From this model's manual
Verified against the Atag/Atag Ic28 installation & service manual.
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

No action is required.Wait a few seconds for the display to return to the normal operating screen.

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All 18 fault codes on the iC28

Seeing a different code? Every code this model can display, in one place.

102040506178105110111117118119129133151154181

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