Help low pressure on boiler

[Melissa1234]

Hi

The pressure on my Vitodens 100-W has fell below what it should be and now the boiler won’t work. I can’t work out how to increase the pressure. I have attached a photo of the setup can someone please help.

https://imgur.com/a/2iSZf

Close up image: https://imgur.com/a/Y04YW

Many thanks, Melissa

 

[terryplumb]

The silver braided hose hanging down needs attaching to the silver fitting that is pointing down ,to the right side.that may have a cap to remove first I can't see on pic. Post close up shot.

 

[Melissa1234]

Heres a close up:

https://imgur.com/a/Y04YW

Should it go on the one with the cap off or the silver one?

Thanks

 

[terryplumb]

The silver fitting with characters stamped on the body has a chrome cap screwed onto its end. You remove that ,carefully and have a cloth handy. Its a one way valve but a tiny bit of water may be present. I can't see the end of the flexi hose it does not show on pics ,but I suspect it will screw onto the one way valve directly. Maybe send pic of that before going any further. Once the flexi hose is connected you open the black handled valve at the other end of the flexi to allow water to go Into the system to increase pressure to 1 bar .make sure the hose at that end is secure on the black handled valve.

 

[Melissa1234]

Hi, many thanks for your help. Here is a close up. There is loads of water coming out. Should there be?

Thanks

Melissa

https://imgur.com/a/Du8mc

 

[terryplumb]

That pic is the end of the flexi ,and water will come out of that when you open the black handled valve. But I was referring to the chrome one way valve having a bit of water appear when you remove the screw on cap on its end. Unfortunately your last pic does not show a side view if what termination is on the end of the flexi ,only an end view. Which don't tell me what I need to know to enable me to advise you on how to connect the flexi to the one way valve.

 

[Melissa1234]

We’ve done it thanks to your help. What a game, we have only been here a few weeks and it’s an old solid brick wall house which is very cold so I went into panic mode with the temperatures as they are at the moment. My boiler at the house we have just left was just a simple turn of the tap to increase the pressure. Why is this one so difficult. Many thanks, Melissa

 

[terryplumb]

Its not difficult now you know how to do it Melissa

 

[Madrab]

If you are just new into the house, I would have a CH engineer in to give your system the once over and show you properly what you need to do with the filling loop.

If the boiler is losing pressure regularly then it needs checked as to what the cause is, you don't want to have to keep filling it up as that's not good for the system.

 

[John D v2.0]

Agree with madrab, not sure what's going on with the pressure relief pipe, should be terminated in a safe location, not sure if plastic pipe counts. Also there's no trap so if there's an air break then drain smells will come through