How do I fill vaillant ecotec pro 28

[robboplumber]

Hi

My boiler (vaillant ecotec pro 28) is giving f22 message. The manual (and this forum) tells me that it needs to be refilled but I'm struggling to see how to do it. The boiler is up in the loft and there is a flexible piece of tubing next to the boiler but it's not obvious to me how to connect it (if I'm supposed to do that) and what to do.

I've read a few of these posts but none of them seems to quite fit the setup I've got. I moved into the house a few months ago so it's the first time this has been necessary.

I'm just going to take some pictures and add them. If anyone can help me it would be greatly apprecieated. Thank you.

 

[PhoenixServices]

There should be two black valves that the hose connects to. Connect it up, turn it on till pressure reads 1-1.5 with heating off. Then turn the valves back off and disconnect. Here's a picture of a filling loop. Filling Loop - Straight - Mr Central Heating

 

[kozak1968]

Braided silver hose has been disconnected ( as it should be). No tools required to re connect and refill as said by Phoenix.

 

[robboplumber]

Hi both (PhoenixServices and kozak1968).

I managed to do this in the end using the filling loop that had been left with the boiler. The thing that was throwing me was that there was only a single black valve to connect the filling loop to. This was where the mains water comes from. For some reason, where the other end of the filling loop connects to (where the water goes in to the system from the mains) does not have a black valve.

There is an arrow pointing inward on this valve so I am assuming that it is some sort of one way valve as it lets the water in but doesn't let it pour back out when I take off the filling loop. This seems unusual from what I've seen from general comments on this and other sites.

Hopefully that's ok but if you think it should be changed to a valve that operates from a black handle then I'll get a heating engineer to change it.

Thanks so much again for coming back to me.