Low
D.41 on Vaillant Atmomax

Your boiler is displaying the current temperature of the water returning from your radiators to help you monitor its performance.

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.

Technical description

Return temperature actual value

DIY fix possible

No action is required as this is an informational status code, not a faultPress the 'i' button to exit the information menu if you wish to see the system pressureMonitor the temperature reading to ensure your radiators are heating up as expected

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Related fault codes

D.40View →S.04View →S.24View →

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