Towel rail cold spots.

[VickyBH]

I had two towel rails fitted about a month ago. Both were working well but recently I noticed a bit of cold spots towards the ends of the bars. I tried adjusting the valves by turning them several times in each direction, but the cold spots have now spread even further. Could someone please help me understand how the valves work to resolve this issue?

The photo shows cold areas in red circle, both manual valves and other areas are still hot.

 

[Murdochcat]

The key issue with designs like this is that there is no flow at the end of the horizontal bars - as you have found out.

How long is the radiator on for ?

 

[JohnD]

Check with a spirit level. Are the horizontals?

 

[VickyBH]

I live in a building where central heating hot water is provided 24/7. So it's been switched on 24/7 for about a month. I will try to borrow a spirit level, but it looks pretty levelled so far.

I called the manufacturer and they say to close the lockshield valve a bit more, does it sound right? I assume the locksheild valve is the one fitted on the return flow pipe?

 

[Madrab]

It's air in the rad that's trapped at the end, see if you can bleed it out. Bloody stupid looking things IMO and such a design faux pas. Why not put a recessed bleed valve at top right hand end ... you know I really hate manufacturers sometimes.