My tenants have turned off all the rad valves in the summer and then back on again this autumn. I've been out tonight because the rads are not heating very well upstairs. The hall rad is ok, but 2 bed rads are stone cold and i can feel some heat on the flow pipe, but that's it.
Downstairs the rads are very hot (2 of them). I've tried turning down the downstairs rads to 2 open turns only on the non thermostatic side.
But it has stayed pretty much the same upstairs.
I spoke to my engineer and he says possibly a blockage because the system was very dirty when i got the house (6 yrs ago) and slowly the filter has been pulling out the crude. Tonight i checked the filter and there wasn't that much crude, but still dirty. No error codes and the hot water is working fine.
Im going next week with the idea to drain down and remove the 6 rads in the house and flush them out with a hose pipe. Is this a blockage or a balance issue ?
If its a balance issue would i shut down all rads apart from one at a time and see if they come to life ?
Any tips appreciated
Downstairs the rads are very hot (2 of them). I've tried turning down the downstairs rads to 2 open turns only on the non thermostatic side.
But it has stayed pretty much the same upstairs.
I spoke to my engineer and he says possibly a blockage because the system was very dirty when i got the house (6 yrs ago) and slowly the filter has been pulling out the crude. Tonight i checked the filter and there wasn't that much crude, but still dirty. No error codes and the hot water is working fine.
Im going next week with the idea to drain down and remove the 6 rads in the house and flush them out with a hose pipe. Is this a blockage or a balance issue ?
If its a balance issue would i shut down all rads apart from one at a time and see if they come to life ?
Any tips appreciated