Low
d.02 on Vaillant ecoFIT pure

Your boiler has reached its target temperature and is taking a short rest to prevent it from turning on and off too frequently, which protects the internal components.

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

Burner anti-cycling time in heating mode

DIY fix possible

Check that your room thermostat is set to the desired temperature.Ensure all radiator valves (TRVs) are open in the rooms you are using.Wait 10 to 15 minutes for the countdown to end and the boiler to restart automatically.

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