Hello to all
I`m a newie to the forum and after my friend spoke highly of the help he has had from here i`m hoping I can get help and advice.
My posting may be a bit on the long side so my apologies in advance.
System is a Worcester Danesmoor 12-14 oil fired boiler that heats a 7 rad sealed c/h expansion vessel system and also dhw that is fed from an open vented tank in the loft.
The pressure on the sealed system has been dropping daily for a few weeks and I don’t know what the cause is or what to do about it.
The guage normally sits around 0.9-1.0 bar when not running and rises to around 1.5 in use. The system is off overnight and on checking each morning for the last few weeks the pressure has gone down a bit further each day and is now around 0.2 bar.
When in use last evening the guage was reading 1.4.
When the pressure first dropped I bled the rads thinking there was air in the system, which brought the pressure down quite a bit more so I let more water in via the filling loop to bring it up to 1.0 bar.
I cant find any water leaks and when depressing the valve on top of the expansion vessel air escapes but no water. (I picked up these possible causes from searching other posts)
The pressure safety valve seems ok as the outlet pipe is dry.
I`d be glad of any assistance please?
Thanks
Mick
I`m a newie to the forum and after my friend spoke highly of the help he has had from here i`m hoping I can get help and advice.
My posting may be a bit on the long side so my apologies in advance.
System is a Worcester Danesmoor 12-14 oil fired boiler that heats a 7 rad sealed c/h expansion vessel system and also dhw that is fed from an open vented tank in the loft.
The pressure on the sealed system has been dropping daily for a few weeks and I don’t know what the cause is or what to do about it.
The guage normally sits around 0.9-1.0 bar when not running and rises to around 1.5 in use. The system is off overnight and on checking each morning for the last few weeks the pressure has gone down a bit further each day and is now around 0.2 bar.
When in use last evening the guage was reading 1.4.
When the pressure first dropped I bled the rads thinking there was air in the system, which brought the pressure down quite a bit more so I let more water in via the filling loop to bring it up to 1.0 bar.
I cant find any water leaks and when depressing the valve on top of the expansion vessel air escapes but no water. (I picked up these possible causes from searching other posts)
The pressure safety valve seems ok as the outlet pipe is dry.
I`d be glad of any assistance please?
Thanks
Mick