Vailant EcoTec Pro 28 looses pressure

[Mr Arthur]

Hi, everyone! Our Vailant EcoTec Pro 28 looses pressure too quickly, every 4 weeks roughly we need to top it up manually by opening valves underneath of it.
Any ideas how to fix it maybe?
We do not have warranty as boiler is around 7 years old.

Would really appreciate help on that!

 

[ianmcd]

you would be better to start your own topic rather than hi jack a 3 year old one , the advice to your problem is not the same as the origional

 

[ianmcd]

on the outside wall you will have a 15mm copper pipe which should be turned back to face the wall, tie a ballon or freezer bag over the outlet and see if any water collects in it, also when you top the boiler up does the pressure gauge rise to around 3 bar when the heating has been on for a while ?

 

[undertrained]

You may also have a radiator/heating pipe leak somewhere on the system, or if it was a conversion and someone left a gate valve in try there.