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Post by wingnut on Feb 4, 2019 17:41:20 GMT
With the head off how difficult is it to move the valve in the housing - note it should only move 5mm approx from fully open to fully closed. Take head off TRV turn it upside down, push on pin, moderate force used |
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Post by battle1066 on Feb 4, 2019 18:03:03 GMT
With the head off how difficult is it to move the valve in the housing - note it should only move 5mm approx from fully open to fully closed. Take head off TRV turn it upside down, push on pin, moderate force used It's the pin in the valve part attached to the radiator which Is what I want to know if it's moving and difficulty to move it. |
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Post by wingnut on Feb 4, 2019 18:17:16 GMT
Take head off TRV turn it upside down, push on pin, moderate force used It's the pin in the valve part attached to the radiator which Is what I want to know if it's moving and difficulty to move it.  |
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ian
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Post by ian on Feb 4, 2019 20:01:23 GMT
You say you can disconnect the flow and return and isolate the boiler, are there any gate valves you have had closed?
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Post by wingnut on Feb 4, 2019 20:03:14 GMT
You say you can disconnect the flow and return and isolate the boiler, are there any gate valves you have had closed? The pipe work has a mag filter on it that was originally on the flow so I’ve moved it to the return and pieced in the gap on the flow so if needs be I can isolate the boiler and flush the pipe work |
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ian
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Post by ian on Feb 4, 2019 20:12:38 GMT
You say you can disconnect the flow and return and isolate the boiler, are there any gate valves you have had closed? The pipe work has a mag filter on it that was originally on the flow so I’ve moved it to the return and pieced in the gap on the flow so if needs be I can isolate the boiler and flush the pipe work Have you got the flow direction correct going through the filter? |
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Post by wingnut on Feb 4, 2019 20:13:58 GMT
Yeah in they the top of filter out they the bottom
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Post by wingnut on Feb 4, 2019 20:14:17 GMT
*through
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ian
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Post by ian on Feb 4, 2019 20:18:43 GMT
Yeah in they the top of filter out they the bottom Which filter is it? |
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Post by wingnut on Feb 4, 2019 20:21:45 GMT
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ian
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Post by ian on Feb 4, 2019 20:38:59 GMT
They are bi-directional but you have to set the direction according to installation point no 3 on this link. link I don't know if not doing so would cause much restriction, did you change the filter round when you changed the rads? |
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Post by wingnut on Feb 4, 2019 20:41:50 GMT
They are bi-directional but you have to set the direction according to installation point no 3 on this link. link I don't know if not doing so would cause much restriction, did you change the filter round when you changed the rads? No rads were changed first, I’ve only recently swapped filter onto return |
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Deleted
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Post by Deleted on Feb 4, 2019 21:00:22 GMT
Shut all the working rads off wingnut and let the non functional ones get hot, allow the working ones to cool off a bit and then go round and open up the lockshields very slowly and stop as soon as you have heat entering the rad. We know the problematic ones will get hot so we have some playing about to do. We all will get you up and running !  |
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ian
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Post by ian on Feb 4, 2019 21:01:07 GMT
They are bi-directional but you have to set the direction according to installation point no 3 on this link. link I don't know if not doing so would cause much restriction, did you change the filter round when you changed the rads? No rads were changed first, I’ve only recently swapped filter onto return Well that should rule out any problems with that, and there has been no gate valves shut at all? (They can stick in a partially/closed position but you cant tell because the handle still turns as normal.) Have you checked if there are valves on the flow and return where they connect to the boiler, and that they are open properly? |
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Deleted
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Post by Deleted on Feb 4, 2019 21:04:38 GMT
No rads were changed first, I’ve only recently swapped filter onto return Well that should rule out any problems with that, and there has been no gate valves shut at all? (They can stick in a partially/closed position but you cant tell because the handle still turns as normal.) Have you checked if there are valves on the flow and return where they connect to the boiler, and that they are open properly? It certainly sounds like a restriction of some form Ian, a valve part closed or muck in the pipe work. Having 8mm microbore won't help on big rads either. |
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