How to top up Vaillant ecotech pro 28 R2 boiler

[eug_1]

Hi All

This is my first post.
Please see attached to this post some pics of the set-up of my boiler.

The pressure has dropped to 0.8bar and I was trying to top up the system by opening the two taps connected to the silver flexi pipe but that didnt work.

I am not sure what I am doing wrong.

Please help.

Thanks
Eug

 

[ShaunCorbs]

Have you tried opening the stop taps either side of the flexi taps as well ?

 

[eug_1]

Hi Shaun

Yep...I tried opening both taps and the little stop valve in the middle and it didnt work.

 

[ShaunCorbs]

Hi Shaun

Yep...I tried opening both taps and the little stop valve in the middle and it didnt work.

so just to confirm you have opened the 2 black lever valves and also the 2 brass stop taps

if yes you will need a heating eng out to have a look, sorry to say

 

[eug_1]

Hi Shaun

Only one black lever is a stop valve,the other seems to be a check valve.So I opened bot taps and the one black lever stop valve.

I was hoping not to get an ENG out but I can see your point.

Thanks....

 

[Gasmk1]

you need to open both black taps the check valve bit is there to stop water from the heating going back into the mains

 

[Masood]

Only one black lever is a stop valve,the other seems to be a check valve.So I opened bot taps and the one black lever stop valve.

There are two black stop valves. One is a small one with the handle only sticking out one side of the spindle (on the horizontal pipe), the other is a butterfly type handle that sticks out both sides of the spindle (up on the wall).

 

[eug_1]

Thank you all for your information,much appreciated
I have now topped up the system.I dont know why i thought the butterfly valve was just a non return valve....