Logic Combi 24 error F1 (Low Water Pressure)

[Frantch]

Hello,

Ok, so my logic combo was working fine since today where it displays alternatively F and 1.

I have looked the manual and it says that the water pressure is too low and that it should be between 1 and 1.5 bar and that I have to fill and vent the system.

I have no idea what fill and vent the system are.. I am 25 and 0 knowledge of boiler or anything...

I have looked at the gauge on the left hand side and indeed the pressure is fare from 1 ...

How do I put it back to 1 ? there a valve juste behind the gauge but I don't know what do to??

Any help would be appreciated, thanks !!

 

[Frantch]

Ok After some reading, it says that I had to connect the filling loop
(it was already connected ?? is this normal ??)

and then open the blue and black valve. I did it and the pressure is now 1.3.
And then I closed again the valves.
And the filling loop is still connected

It seems to work fine now. But why did the pressure dropped?

thanks

 

[Breesey]

There could be various reasons. Check all your radiators for signs of leak. Check on the outside of the wall that the boiler is on to see if there are any signs of water coming from the little copper pipe out there.

 

[heatingeng]

If it has taken a long time to drop then you don't need to worry, if it happens every week then there maybe a problem.