Radiator not heating fully

dinneenp

Hi,
One radiator in our house will barely heat. I've bleed it (no issues). What else can I do. What does adjusting the settings at either end, by floor do? Do they control flown in and out?
Pics attached.

Thanks
Pa

listermint

dinneenp wrote: »

Hi,
One radiator in our house will barely heat. I've bleed it (no issues). What else can I do. What does adjusting the settings at either end, by floor do? Do they control flown in and out?
Pics attached.
Thanks
Pa

Most likely is got sludge in it if bleeding doesn't help. Drain and remove radiator. Bring it outside. Bang it with a rubber mallet or piece of wood while running a hose through one end. This should dislodge the sludge. Then refit it .

Atlantic Dawn

Does it have a thermostatic valve?

bubbagumss

yes a robber mallet

also bleed all other radiators

delboythedub

Are any of the 2 small pipes getting hot and if so make sure that its valve is open . Any pic of where you open other valve to bleed rad

Wearb

There's are other things to try before going to the trouble of removing the radiator.
Turn off most of the other rads to see if this one then heats up. Make sure valves on both ends of that rad are fully open.

lidijaw

listermint wrote: »

Most likely is got sludge in it if bleeding doesn't help. Drain and remove radiator. Bring it outside. Bang it with a rubber mallet or piece of wood while running a hose through one end. This should dislodge the sludge. Then refit it .

Can I just ask as have similar situation. After we clean it and refit it, how to refill it? Will water automatically refill from the boiler, not afecting other radiators at home?

dinneenp

Hi,
Thanks for the replies. Will try the valves first

dinneenp

dinneenp wrote: »

Hi,
Thanks for the replies. Will try the valves first

Top of the rad is warm, not the bottom.

Facing the rad-
Pipe on the right is hot
That valve is turned fully

Pipe on the left isn't hot or warm
Can't turn the valve either way (can I loosen 1 of the screws under the valve and then try?)

This is the one that I can't turn either way-


What's the function of this? (it's on upper side, opposite end to where I bleed the bleeding rad


Thanks again

dinneenp

delboythedub wrote: »

Are any of the 2 small pipes getting hot and if so make sure that its valve is open . Any pic of where you open other valve to bleed rad

dinneenp

Strange update-

Another rad (kitchen) was working fine, now bottom isn't warming properly. Last night it worked fully, just once and is back to not working fully again. Odd, that it'd work once properly.

JustAThought

dinneenp wrote: »

Strange update-

Another rad (kitchen) was working fine, now bottom isn't warming properly. Last night it worked fully, just once and is back to not working fully again. Odd, that it'd work once properly.

when I bleed one of my (large, double) radiators It affects the others - I end up having to resort to turning them all on and checking the lot - I have a complicated series of handles & valves I then have to release/shut whilst shouting downstaira at someone to check the pressure regulator on the boiler. I consequently don’t aim for total perfection in my radiators unless the heat in one of the main rooms is affected. Or I have a bucket of drugs and a handy slave nearby. Or every couple of years I give up & call a plumber.