Vaillant Ecotec pro 24 low pressure/filling loop problem

[ollos]

Hi folks,

I wonder if you can help...I had the above combi-boiler installed 2 and a half weeks ago, all working well until this morning there's an F22 error and the pressure is showing at 0.4bar

Apparently I need to fill the system via the filling loop (is this right?) - I've got two black taps and a length of flexi hose attached below the boiler. However I've turned both of them and nothing happens - no sound of water flowing through or anything at all.

The installer's office is shut on Saturday so I thought I'd get a heads up and see if I could work out what's wrong.

Any advice is greatly appreciated
Ol

 

[E4gas]

Can you post a photo of under the boiler ,

 

[ollos]

Hope these are of some use 🙂

 

[IDCHAPPY]

Unless the check valves fitted the wrong way you should be able to fill it up 🙂

 

[villa_tom]

Just turn the black handles on the silver braided hose and close them once you get to roughly 1bar.

Also you need to get those pipes insulated because the electrical cable runs too close the pipework 🙂

 

[ollos]

I've turned the black handles - both counter-clockwise a quarter turn which I presume is 'open' but nothing happens 🙁 No sound of water, no pressure increase... Is there possibly another valve somewhere??

Water is definitely on - washing machine and taps etc...
Any thoughts?

Will look into some pipe insulation too 🙂

Cheers!

 

[Dotty]

Disconnect the braided hose, get a bucket, and open the valve on the left for a second or two.

 

[ollos]

Disconnected the hose at left end - turning the left tap on does nothing (no water) Turning right tap on produces stream of water through the hose (presume this is from the boiler?)

 

[Dotty]

Get your installer back out, he's made a bit of a faux pas.......

 

[ollos]

Rightio..thought it might come down to this. Cheers anyway!

 

[stevetheplumber]

how did the installer fill it ?

 

[ollos]

Not sure I could tell you - I left him to it upstairs. When he'd finished it was all in working order, pressure was fine .. He must have done it somehow I guess...

 

[Scott_D]

Take the black handles off and open it with a spanner/screw driver make sure the handle is not just spinning

 

[ollos]

Magic!! That was it - took the handles off and the valve was very stiff - soon as I put some force into it the water started going. The handle was just turning on its own. Water flowing again, pressure back up to 1.0, and heat and hot water back on again.

Thanks a lot 🙂

 

[Dotty]

Glad you're sorted Ollie, thanks for letting us know how you got on.

 

[Chris Follows]

Take the black handles off and open it with a spanner/screw driver make sure the handle is not just spinning

- Thank you scott_d it was the black handles, just needed a tighten so they could turn the internal workings !

 

[LPC]

I would still get your installer back unless you want to be refilling the system every 2 weeks for the next 10 years. Protip; that isn't good for your new boiler.