Low
d.41 on Vaillant ecoFIT pure

Your boiler is displaying the temperature of the water returning from your radiators rather than showing an error, which is usually part of normal operation.

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

Heating return temperature

DIY fix possible

Check if the boiler is still providing heating and hot water as normalPress the 'Back' or 'Menu' button to return the screen to the standard pressure or temperature displayIf the code persists and the boiler isn't heating, try a simple reset

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