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Radiator cold at bottom - hot at top

chopps · 2013-10-13 21:01:35

One of my radiators is not evenly hot (cold at bottom). I have read that this can be caused by a faulty TRV or sludge at the bottom reducing flow. Some questions though - 1. Can I 'fix' it by opening the lockshield valve to allow more water to flow through ? 2. What temperature range do TRV's operate at ? meaning if it's…

Comments

plumb1_2 Posts: 4,395 Forumite

30 October 2013 at 10:03PM

Close the lockshield valve, then open it be half a turn, then see if the rad heats up, if it does then you can open it slightly more.
What might be happening is because your connections are at opposite ends ( top and bottom) it will have a tendency to flow across.

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