Low
STOP on Atag A200

Your boiler has reached the correct water pressure while being topped up and is letting you know the filling process is complete.

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

Appears on the display when the water pressure reaches the required level during filling.

From this model's manual
Verified against the Atag A200 System 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

Locate the filling loop valves (usually chrome handles) under the boiler.Ensure both valves are turned to the fully closed position.Check that the 'STOP' message has cleared and the boiler returns to its normal pressure reading.

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