I am re installing a towel rail and it just doesn't seem to be heating up! I have bled it until there was water spitting out of it and so I presume that it is full of water. It seemed to get warmish and then it lost heat again- possibly as I was bleeding the rail. There are two lockshield valves fitted and I wonder if they could be the problem? I have posted photos of them below and Should I swap the valves over? Have I re installed them on the wrong ends/ sides of the rail? Do I need to adjust them? The towel rail is in the upstairs bathroom, all the other radiators upstairs are on and working well. Prior to re installing it the copper pipes have had stop ends on them and so I know that copper pipe below the valve in the second picture has been hot before but it isn't now. Any help would be much appreciated. Thanks,
I can't see the picture, but my guess is that the radiator that was there before was piped off the hot water cylinder. So you have to sort the pipework out before you can get heat in there.
Do you have a combi boiler installed? Prob stating the obvious, but have you re-pressurised after bleeding?
You can bleed it all you can, but untill you sort that pipework out, you will have no heat at that TR. My guess is the ''Engineer'' fttt, who converted the system to Combi had no idea how to plumb the bathroom radiator, so when he was called back to sort it he tried his best then a decision was made to just cap off the pipework.
OK. I turned off all the rads, turned on the heating, checked the pressure in the system and opened the valve in the first photo using a large hex key. Black water started to drip out of the valve immediately. I closed it up until it stopped. With the heating on even the copper pipes below the valves are not getting warm. The rail was taken off some weeks ago so that the bathroom could be redecorated. Nothing major has been modified relating to the pipework going to the rail, apart from the fact that I re-installed the valves. I also bled the valve which sits on the top of the rail (on the same side as the valve in the second photo) and black water started to drip out of that immediately. I hope that this helps. Thanks.
Was the rad working before the renovation? If it was, then may be you have to replace the valves you have there with simple basic TR valves from SF. There is no logical explaination (if the valves were working b4) as to why the TR won't heat up if all other rads are turned off, except may be in the course of the renovation, one of the pipe got 'blocked' with debris? Highly unlikely but may be possible.
Thanks everyone for your input. The rail is now working perfectly. The reason it wasn't is that the valve in the second photo was not open. I had no idea how to open it until I looked at the cap that I had taken off it. It is amazing how simple stuff seems when you know what you are doing!
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