What does the Atag 180 fault code mean?

This is a normal status message showing the boiler is returning to standard operation after a maintenance test, and it is not an actual fault.

How much does it cost to fix Atag error code 180?

Cost varies. Contact a Gas Safe registered engineer for a quote.

No error: shortly visible when leaving chimney sweep function

No action is requiredWait a few moments for the code to disappear from the displayContinue using your heating and hot water as normal

Break-even maths on monthly cover.

7 signs repair isn't worth it anymore.

Realistic UK prices for a swap.