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by Alien
Mon Feb 08, 2010 11:43 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: luke warm radiator
Replies: 9
Views: 11372

lukewarm radiator

[b]Hi Baz It could be that the pressure washout was not completely successful, and has pushed sludge into the rad. You need to take down the rad. If it is full of sludge you will find it. A word of caution. Do not expect the TRV to hold closed at low temperature. Most are designed to open as the tem...
by Alien
Fri Jan 29, 2010 5:58 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: luke warm radiator
Replies: 9
Views: 11372

lukewarm radiator

[b]Hi baz Sorry about delay in coming back, been busy! It was when you said in your previous post that the return was hot but the temperature of the flow tail was cool that I realised the valves were almost certainly reversed to normal practice. This doesn't matter with current products that are a b...
by Alien
Mon Jan 25, 2010 10:48 am
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: luke warm radiator
Replies: 9
Views: 11372

one luke-warm rad

Hi Baz Thanks for details of pipe scheme. It sounds ok. The bedroom rad would vent the manifold and you say that rad is working ok. It seems a silly question, but when you refitted the rad in the bathroom did you vent it until water came out? Sometimes the airvent can get blocked. Assuming you did, ...
by Alien
Mon Jan 25, 2010 10:30 am
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: only some radiators working
Replies: 6
Views: 3460

some rads not working

OK. But you didn't say if any of the rads have been working before. Let's assume not since you took over the property. Then you have a problem to identify the blockage. You will need to trace the piperuns back to where it is getting warm. This will probably mean exposing some pipework that is boxed ...
by Alien
Sat Jan 23, 2010 12:51 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: luke warm radiator
Replies: 9
Views: 11372

lukewarm radiator

Hi baz1, This is a difficult one. Initially I would have said the system needed balancing, but as you've tried turning off all other rads and the bathroom rad still remains lukewarm, that is unlikely to be the reason. Can you give more info. Where is the bathroom rad on the pipework? Is it at the en...
by Alien
Fri Jan 22, 2010 7:06 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: only some radiators working
Replies: 6
Views: 3460

only some radiators working

[b]Hi, I presume when you say all rads have been bled that you actually got water from the aircock. OK. Have you got thermostatic radiator valves on all these rads? If you have they could be sticking. (They often do after a few years). Open them up fully to number 5 or 6 (as far as they will go). Un...
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