Can anyone help me with F22 code, Vaillant ecoTEC pro 28

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Hello everyone!

I know this has been covered all over the internet, but i have been trying to figure this out for hours now with no luck.

Found the code F22 today, we seem to be missing the manual. None of the videos or pics online match our boiler pipes so i'm stumped.

We have a filling loop. but it's not attached to anything, just clipped onto the wall so i have no idea where these go.

I will attach photos of the Filling Loop and everything else. We have a very cold house so any help is much appreciated! Thankyou
 

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Pic 3; remove the caps off the two silver valves
Pic1; attach hose between the valves u took the caps off (tightish)

Then turn 1 black lever on fully, then turn the other black lever slowly and watch the pressure rise to 1-1.5bar on the display or the boiler fires
 
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Thankyou so much! That worked, your a life saver! Am i safe to remove the filling loop or should i just leave it on?
 
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What he said ^ :D

That's actually been done properly... filling loop flexi removed AND clipped to the wall where you can see it... what a thorough person it was who installed that!

Mostly they're are left connected, which is what would have been better for you in this instance :sneaky:
 
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Now... if your system loses pressure again in the next couple of days, you have other issues that will need addressing!

Be warned :(
 
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What he said ^ :D

That's actually been done properly... filling loop flexi removed AND clipped to the wall where you can see it... what a thorough person it was who installed that!

Mostly they're are left connected, which is what would have been better for you in this instance :sneaky:

I'm glad it was clipped to the wall! Seen lots of stories today of people not being able to find it! I shall leave it attached to the pipes now. So quick and easy! Glad i got help before calling out for help tomorrow!
 
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Now... if your system loses pressure again in the next couple of days, you have other issues that will need addressing!

Be warned :(

Is that something that happens alot then?
 
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