One radiator not working

[kafia]

Hello,
One of my radiators is freezing cold making it so I can't use that room (I only have a few rooms!)
I have googled and turned off the other radiators, bled the cold one and then turned on the heating and tried to get it to go through to just that one radiator but it's not working.
I don't know what else to do and really can't afford a plumber. The radiator is in my bedroom so I am sleeping on the sofa because single glazing+no heating makes a room which shows -2 degrees on themometre!
Please help if you can.
Thanks :)

What happened when you bled the radiator in question? Did air come out? Did water come out? The system may need "topping up" - or in other words the radiator won't get hot if it has no water in it. The instructions for your boiler should tell you how to check this and how to top it up.

is it a Thermostatic radiator valve?

have you opened the valve on the other end?

please post photos of the valves on both ends of the rad.

How long has it been turned off, and why?

Air comes out whenever I bleed it although I think it has been overbled before I got here because when I turn it on, the radiator doesn't make any noise
I will post pics in a minute, thank you.
I am trying to find the loop near the boiler to pressurise the system but it's a very old boiler I'm not sure what else to try

These are the valves

do you mean air comes out, followed by water? Or do you mean only air comes out?

is this the highest radiator in the house?

Is there a pressure gauge on your boiler?

the right-hand valve is a TRV. The left hand valve is a plain valve operated by the knob. You can wind them both upwards. Count the number of turns on the left hand one because you may have to screw it down later. If the left hand knob is screwed all the way down it has been manually closed, and would prevent the radiator from working. Sometimes this is done if the valve leaks. If it does, it will probably stop if you screw it all the way up or all the way down.

The plastic assembly on the TRV will be attached to the brass valve below, probably with a chrome nut or knurled ring, which may undo by screwing downwards. See if you can work out how to undo it. If you have the same type of valves on other radiators they may be easier to learn on. Water will not leak out when you remove the plastic part.

As the parts in your pics are very old, and you say the boiler is old, it may not have a filling loop. If the boiler has no pressure gauge it is probably topped up from a small plastic tank in the loft, about the size of an old WC cistern. It may be full of sludge or blocked.

p.s.

does the TRV say "Lifestyle" on the top? If so, this is a name sometimes used by ACL Drayton, though I don't recognise your valve. If necessary they may still sell replacement parts.

Seriously needing to vacuum . . .

you don't need it yet, but this looks like a slightly later model of your TRV , and it looks like the knurled ring would unscrew upwards to remove the plastic head.

They do sometimes jam but we haven't yet discovered if that's the source of your problem. I am leaning more towards a sludge blockage in the pipe from a loft tank.

Only air comes out
And it is the highest in the house yes

That side of the radiator was covered by the wardrobe which is why lots of cobwebs and I just moved the bed from the other side that's why dust

I don't have access to the loft

I will postulate that you probably have an open vented boiler with no pressure gauge. In which case the shortage of water is probably due to a blockage in the feed and expansion pipe, which most likely comes down from the loft and connects in the airing cupboard or by the boiler, and you will not be able to DIY fix it unless you are fond of plumbing and can get into the loft. This kind of blockage is very common in old open-vented systems. Occasionally the same symptoms come from a jammed ballcock in the loft tank.

However, if your boiler has a pressure gauge, it may be fixable by topping it up.

I don't have access to the loft

Is this because you rent? Phone your landlord, it’s their responsibility and shouldn’t cost you anything.