Low
Err.5 on Atag Q 25S

Your boiler has recorded a historical error in its memory log, which often indicates that it previously encountered a temporary issue that has since resolved itself.

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

5th last predecessing error

From this model's manual
Verified against the Atag Q 25s 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.

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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