Hi,
I had a leaking overflow which was losing pressure daily as soon as the CH was off. I had already run slicone through the system and also am in a top floor flat so knew if there was a significant leak it would have become apparant.
I pumped air into the expansion vessel and increased the pressure to 1.5 bar. I released the expansion vessel water through the CH return pipe until the pressure reached zero. This water was clear. I repeated to get more air in the vessel but this time the water was very dirty.
The leak from the overflow has stopped, the pressure has stayed constant.
However when I switch on the CH it fires up but only the first 5-10cm of the CH flow pipe gets really hot and that's it, so effectively I have no CH.
The hot water works absolutely fine.
Does anyone have any suggestions? All help gratefully recieved.
Thanks in advance
I had a leaking overflow which was losing pressure daily as soon as the CH was off. I had already run slicone through the system and also am in a top floor flat so knew if there was a significant leak it would have become apparant.
I pumped air into the expansion vessel and increased the pressure to 1.5 bar. I released the expansion vessel water through the CH return pipe until the pressure reached zero. This water was clear. I repeated to get more air in the vessel but this time the water was very dirty.
The leak from the overflow has stopped, the pressure has stayed constant.
However when I switch on the CH it fires up but only the first 5-10cm of the CH flow pipe gets really hot and that's it, so effectively I have no CH.
The hot water works absolutely fine.
Does anyone have any suggestions? All help gratefully recieved.
Thanks in advance
