Low
d.24 on Vaillant ecoFIT pure

Your boiler is checking if the water pressure is high enough to run safely, but it is currently detecting a status that might prevent it from firing up.

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

Status of the pressure monitor (off=Not switched, on=Switched)

DIY fix possible

Check the pressure gauge on the boiler or via the digital menu (d.05).If the pressure is below 1.0 bar, use the filling loop to top it up to 1.5 bar.Restart the boiler to see if the status changes.

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