Low
181 on Atag iR15

This code is not an error; it simply confirms that your boiler has finished its setup or testing mode and is returning to normal operation.

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 commissioning mode

From this model's manual
Verified against the Atag/Atag Ir Regular 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 requiredWait for the boiler to return to its normal displayEnsure the boiler is heating your water as expected

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All 15 fault codes on the iR15

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

1020405061105110111119129133151154180

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