Tue, 19 Dec 2023 06:23:41 +0000 http://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17915&Focus=302712#Comment_302712 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17915&Focus=302712#Comment_302712 Wed, 02 Aug 2023 21:40:44 +0100 Victorianeco
Just the last two days it appears my circulation pumps are both stuck on and the pressure relief valve (there appear to be 3) one of which seems to be bypassing water into the tundish....

The temperature seems to be at 57C when it is usually set to 50C...

What's the fault finding process? Never had an issue in 8 years previous, the only thing I can think of recently was draining the heating system to disconnect a rad. But no other issues.

Thoughts please]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17915&Focus=302720#Comment_302720 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17915&Focus=302720#Comment_302720 Thu, 03 Aug 2023 08:47:54 +0100 GreenPaddy Which circuit are the circ pumps running const? ASHP to cyl?
Which circuit press relief valve is passing?
Have you tried resetting the relief valve? (sometimes turning the knob forces it to lift and then reseats. Might have to do it a few times till it seats properly).
Is there an auto fill on the circuit that has relieved? What's the pressure on that circuit v's what it should be?]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17915&Focus=302721#Comment_302721 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17915&Focus=302721#Comment_302721 Thu, 03 Aug 2023 10:16:34 +0100 djh )]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17915&Focus=302729#Comment_302729 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17915&Focus=302729#Comment_302729 Fri, 04 Aug 2023 07:36:07 +0100 borpin Posted By: VictorianecoJust the last two days it appears my circulation pumps are both stuck onSounds like an issue with whatever is controlling the pumps. If the HP, suggest you will need a HP engineer.]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17915&Focus=302730#Comment_302730 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17915&Focus=302730#Comment_302730 Fri, 04 Aug 2023 09:38:55 +0100 WillInAberdeen
Fault finding process:
1) is it the hot water, or the central heating system, or both (IE the heatpump)? Two of the safety valves are on the hot water, one on the CH, trace back along the pipe to see which one is over pressure. Turn that system off for a day and see.]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17915&Focus=302880#Comment_302880 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17915&Focus=302880#Comment_302880 Sat, 19 Aug 2023 05:39:30 +0100 tony