Radiator stopped working...
One of my hot water rads has stopped coming on. It's the rad furthest-away from the main feed on the circuit on the upper floor. I checked the plunger on its TRV, but it moves freely. I don't have any reason to suspect the other valve. The system was installed about 10 years ago. The rad seems to bleed OK from the bleed valve. I tried shutting of all the other rads in the house leaving the faulty one on, (thinking it might be a system balancing problem) but it still doesn't come on. Any suggestions? Thank you in advance. Al D |
Radiator stopped working...
In an earlier contribution to this discussion,
Al D wrote: One of my hot water rads has stopped coming on. It's the rad furthest-away from the main feed on the circuit on the upper floor. I checked the plunger on its TRV, but it moves freely. I don't have any reason to suspect the other valve. The system was installed about 10 years ago. The rad seems to bleed OK from the bleed valve. I tried shutting of all the other rads in the house leaving the faulty one on, (thinking it might be a system balancing problem) but it still doesn't come on. Any suggestions? Thank you in advance. Al D Could be an air lock or a blockage. First, make sure that there is water in the F&E tank if it's a vented system - or that there's sufficient pressure in the system if it unvented. Then re-bleed the offending radiator twice - first with one valve fully open and the other closed - and then the other way round. [You may have to clamp the pin of the TRV down to close that unless you have a manual cap for it - or just refit the thermostatic head with a spacer above the pin, and turn it to minimum]. Bleed a couple of pints of water out each way. This will ensure that *both* pipes are clear and free of air. [If you bleed it with both valves open, one pipe could be blocked but it will still bleed]. -- Cheers, Roger ______ Email address maintained for newsgroup use only, and not regularly monitored.. Messages sent to it may not be read for several weeks. PLEASE REPLY TO NEWSGROUP! |
Radiator stopped working...
On Tue, 23 May 2006 22:14:01 +0100, "Roger Mills"
wrote: Could be an air lock or a blockage. First, make sure that there is water in the F&E tank if it's a vented system - or that there's sufficient pressure in the system if it unvented. Then re-bleed the offending radiator twice - first with one valve fully open and the other closed - and then the other way round. [You may have to clamp the pin of the TRV down to close that unless you have a manual cap for it - or just refit the thermostatic head with a spacer above the pin, and turn it to minimum]. Bleed a couple of pints of water out each way. This will ensure that *both* pipes are clear and free of air. [If you bleed it with both valves open, one pipe could be blocked but it will still bleed]. Thank you so much for the help. I will try the above as soon as I can. Al D |
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