Medium
A22 on Ariston Micro Condens

Your boiler has detected an internal error and needs a simple manual reset to try and clear the system.

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

What the manual says

Manufacturer manual

Try resetting the boiler

From this model's manual
Verified against the Ariston Micro Condens System installation & service manual, page 27.
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

Locate the reset button on the boiler control panelPress and hold the button for 3 to 5 secondsWait up to two minutes for the boiler to restart and check if the error code clears

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