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upstairs radiators not warming up

my downstairs radiators are warming up nicely and 2 of the 4 upstairs ones are nice and warm.

2 of the radiators on the first floor and 1 of 1 on the second floor are not warming up at all. they were all fine last winter :(

bled them all today and water in there. the pipes in and out of each of the non performing radiators are cold.

today I turned the base pins but no luck. I checked all the thermostats on.

tomorrow I will turn off all the working ones and try and focus on the non working ones.

any other ideas welcome that I can try before calling in a pro.
"enough is a feast"...old Buddist proverb

Comments

  • ariba10
    ariba10 Posts: 5,432 Forumite
    Part of the Furniture 1,000 Posts Combo Breaker
    Turn off all the Rads that are working and see what happens to the others.
    I used to be indecisive but now I am not sure.
  • DVardysShadow
    DVardysShadow Posts: 18,949 Forumite
    ariba10 wrote: »
    Turn off all the Rads that are working and see what happens to the others.
    Turn off all radiators, except one of interest and see what happens - take off thermostatic heads and wiggle exposed valve pin
    Hi, we’ve had to remove your signature. If you’re not sure why please read the forum rules or email the forum team if you’re still unsure - MSE ForumTeam
  • rxbren
    rxbren Posts: 413 Forumite
    as above except give it a light tap as sometimes when they are switch off/turned down the seals stick
  • theGrinch
    theGrinch Posts: 3,133 Forumite
    Part of the Furniture 1,000 Posts
    Turn off all radiators, except one of interest and see what happens - take off thermostatic heads and wiggle exposed valve pin

    I turned off all the radiators and then turned radiator 1 on.

    Eureka it worked. I then did the same for radiators 2 and 3, but alas stone cold. Then I turned on all radiators on and radiator 1 was lukewarm at the top and cold at the bottom.

    I tried to remove the thermostatic head by twisting and pulling without success. Do I need to untighten any nuts? Can you explain how they are removed please?
    "enough is a feast"...old Buddist proverb
  • it depends which trv's you have fitted, did you turn them off for the summer ?
    I'm only here while I wait for Corrie to start.

    You get no BS from me & if I think you are wrong I WILL tell you.
  • rxbren
    rxbren Posts: 413 Forumite
    most trv's have a fitting at the bottom it will be a metal nut/ring with vertical notches it should only be on hand tight and comes off anti clockwise
  • rxbren wrote: »
    most trv's have a fitting at the bottom it will be a metal nut/ring with vertical notches it should only be on hand tight and comes off anti clockwise

    not always which is why i asked what trv's the OP has
    I'm only here while I wait for Corrie to start.

    You get no BS from me & if I think you are wrong I WILL tell you.
  • keystone
    keystone Posts: 10,916 Forumite
    Have you got an open vented CH system or is it pressurised?

    Cheers
    The difference between genius and stupidity is that genius has it's limits. - Einstein
  • rxbren
    rxbren Posts: 413 Forumite
    thats why i said most
This discussion has been closed.
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