Forums
New posts
Search forums
What's new
New posts
New media
New media comments
Latest activity
Media
New media
New comments
Search media
Members
Current visitors
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
General Forums
General Chat Area
Worcester Green star 37cdi Pressure loss.
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support Talk Electrician Forum:
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Message
<blockquote data-quote="Geoff1946" data-source="post: 505790" data-attributes="member: 28452"><p>If you close the boiler isolators with the system pressurised and the pressure gauge on the boiler stays up then you have proved the loss is not via the boiler. That's all. As you are confident it's not leaving via the PRV, and presumably it's not dripping out of the boiler, I guess there isn't much doubt anyway.</p><p></p><p>I can't think how a fault on the hot water would cause heating circuit pressure loss. In principle there is no connection between the two. Further, your cold water supply, and consequently the hot will be at a higher pressure than the heating circuit; that's how you pressurise the heating system to start with. Hence, if they did somehow become connected the heating system pressure would rise, not fall.</p><p></p><p>A common cause of copper pipe failure is corrosion from the outside where the pipe is in contact with masonry, cement, etc., and especially if there is any dampness. It will only take a pin-hole to de-pressurise your system over a few hours; you're not looking for a torrent! </p></blockquote><p></p>
[QUOTE="Geoff1946, post: 505790, member: 28452"] If you close the boiler isolators with the system pressurised and the pressure gauge on the boiler stays up then you have proved the loss is not via the boiler. That's all. As you are confident it's not leaving via the PRV, and presumably it's not dripping out of the boiler, I guess there isn't much doubt anyway. I can't think how a fault on the hot water would cause heating circuit pressure loss. In principle there is no connection between the two. Further, your cold water supply, and consequently the hot will be at a higher pressure than the heating circuit; that's how you pressurise the heating system to start with. Hence, if they did somehow become connected the heating system pressure would rise, not fall. A common cause of copper pipe failure is corrosion from the outside where the pipe is in contact with masonry, cement, etc., and especially if there is any dampness. It will only take a pin-hole to de-pressurise your system over a few hours; you're not looking for a torrent! [/QUOTE]
Insert quotes…
Verification
Post reply
General Forums
General Chat Area
Worcester Green star 37cdi Pressure loss.
Top