Low Information
D.41 on Vaillant ecoTEC plus Regular

Your boiler is displaying the current temperature of the water returning from your radiators rather than indicating a specific fault.

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

What causes this fault?

This is not a fault, but rather a status message triggered when the boiler is actively monitoring the temperature of the water coming back from your radiators. It occurs during normal operation to help the boiler's internal computer calculate how much heat is needed to keep your home comfortable. You do not need to take any action as your heating and hot water will continue to work as normal.

DIY fix possible

No action required as this is an informative status code, not an error.Press the 'i' or 'back' button to clear the status from the display.Monitor the boiler to ensure it continues to provide heating and hot water as normal.

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