Low
d.05 on Vaillant ecoFIT Pure 425

Your boiler is currently displaying the target temperature it is trying to reach for your radiators; this is an information status code rather than a 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

Determined heating flow set target temperature

DIY fix possible

No action is required as this is a normal status message.Adjust your heating control knob or thermostat if you wish to change this target temperature.Wait for the display to revert to the current live temperature reading.

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