Vailant ecotec pro 28 pressure

[Johns23]

Hello.

I’ve lived in the property for 4 years and anytime the pressure got low (0.8 bar) I would use the fill taps to release more water into the system. Ever since British Gas did their annual boiler check about 3 months ago, I’ve had to do this too up method more and more. My pressure is now 1.8 bar which is too high but seems to lose pressure and need topping up every other day. I can’t see any leaks and the pressure reading isn’t changing so any ideas why I’m losing my hot water and heating until I let some more water into the system and then it fires straight back up?

 

[Johns23]

Filling loop needs changing as you shouldn’t have to use grips to turn it off and no you shouldn’t hear water flowing

Should the valve open when turned both clockwise and anti-clockwise?

 

[ShaunCorbs]

Thanks. I’m not sure I can remove the other end without draining the system as think the valve on the filling loop itself is what’s stopping the flow. I’ll double check and take a photo in a bit. For some reason my filling loop is where the old immersion boiler used to be upstairs and not under the combi.

Yes you will need to drain

 

[Johns23]

Ok thanks. Is it possible this could be the cause of losing pressure?

 

[Johns23]

Also all this new water entering the system will need inhibitor added won’t it?

 

[ShaunCorbs]

Yes as they don’t seal after they’ve chucked out very good so normally drip or small run etc