one cold radiator

[angel27]

All radiators hot, except downstairs one, this one wont heat, just had an upstairs pipe replaced and wont heat since that, the plumber put bread in the pipes to seal it dry till he soldered it and said it would shift it self along the pipe and dissolve. ive turned all other rads off (except one which i havent the strength to turn) and turned heat back on but no good, ive also bleed them all. help.

 

[mowgley1979]

Hi

Make sure all other radiators turned off, then go to the cold radiator and make sure both valves are open full (flow and return). If that don't work get the plumber back and get him to flush the system out!!
Never heard of using bread

 

[angel27]

i never heard of the bread either, i thought he was taking the **** when he told me to get the bread. I forgot to mention that at the end of the cold radiator their is a knob with a pin (i think the white cover with the mumbers on it has been missing a long time but this never affected it before.)does the pin part make a difference to the problem. sorry but i dont know much about heating.....thanks for trying to help.

 

[pierrot]

8) I remember trying the bread trick when I was young and stupid now that I`m old and senseless I dont use it. You`l probably need to get it flushed out now. So get him back.

 

[angel27]

their is two pipes coming to the cold radiator, one goes to the thermo side of radiator and is hot , the other pipe goes to the other side of radator and is cold half way down the wall, does that shed any light on my problem....thanks

 

[simons38]

TRY BLEEDING THE RAD, YOU WILL HAVE TO GET YOURSELF A BLEED KEY AND AT THE TOP OF THE RAD YOU WILL SEE A SMALL SQUARE SHAPED NUT TURN THIS WITH THE KEY UNTIL YOU GET WATER OUT THEN TIGHTEN IT BACK UP AGAIN

 

[chrishutt]

the plumber put bread in the pipes

But did he cut the crusts off?

Seriously though, check the post on TRVs sticking shut in the sticky reference topic.

 

[angel27]

The pipe going to the trv is warm(hot at the ceiling end), the pipe going to the other end of the rad is cold, The trv knob is missing and the pin part has been painted with white paint ( painted completely!), how do i push it in with out breaking it and causing damage (would pushing it in solve the problem) i have bleed it and makes no difference, i had another cold rad upstairs when plumber left but bleeding that one fixed it, need help as the room is very cold. dont want to get plumber back as money short at chrismas. thanks for the other replies.

 

[chrishutt]

Just push the pin in! Does it move?

 

[angel27]

no its plastered in paint and rock hard, i tried using the flat blade of a knife to put pressure on it but no good.

 

[chrishutt]

Use a heavier tool, or a hammer to tap it. It should move in when pressed and spring out again. Don't worry about breaking the paint.

 

[angel27]

tapped gently with hammer and the pin went in but didnt pop up again!

 

[angel27]

just got a small screw driver and scrapped the paint around the pin away gently and it popped up, im waiting to see if rad heats up.

 

[angel27]

doesnt seem to make any difference, the other pipe to the other end of rad is ice cold

 

[chrishutt]

OK, you done well, but that rules out a stuck TRV anyway.

If you're sure the other rad valve is open fully and you've tried shutting off the other rads to try to force the circulation through, I think you might need to get the power flushing guy back.