F22 error with Vaillant HrPro

[johncaffe]

Hi everybody,

I had a leakage in one of my pipes but now it is fixed. However, as you can imagine, the pressure in the water boiler is not good anymore and the F22 error is on. I watched some videos including yours but could not figure out what valve I should open to refill the system. I have a Vaillant hrPro.

Thanks a lot for your help, I appreciate it.

 

[Chalked]

Vaillant pro will have an external filling loop.
Look for a piece of braded pipe with a valve on each end.
Like this.

 

[Unregistered]

Hi Chalked,

Thanks for your quick reply. There is indeed something similar. But when I open either of the valves there is water flowing out. http://*********/a/PtNbv

 

[Chalked]

Hi Chalked,

Thanks for your quick reply. There is indeed something similar. But when I open either of the valves there is water flowing out. http://*********/a/PtNbv

Please login when you post.
Do you mean it leaks water, or you can hear water going in?

 

[johncaffe]

Sorry my computer did not allow me to login. Yes indeed, I am trying to upload some pictures but without success. So when I open the black valve there is water leaking to the bottom.

 

[Chalked]

Sorry my computer did not allow me to login. Yes indeed, I am trying to upload some pictures but without success. So when I open the black valve there is water leaking to the bottom.

Sometimes these leak when filling. If it is a small amount, don't worry while filling. Turn the valves if once you have reached the correct pressure. ( green area).
Then get the leaking filling loop replaced St some time.

 

[johncaffe]

Perfect thanks. I started to do so and it was a small amount at the beginning but now it starts to be more. I will try to reach the pressure.

Edit: Now there is no water leaking out anymore. However I do not hear water filling in the boiler. I know there is water inside since when I open the other valve for the purge there is water coming out.

 

[jtsplumbing]

What do you mean ? when you open the other valve water is coming out !! what valves are you using ??

 

[Riley]

We really need some pics