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    Plumbing Advice - Thermostatic Radiator Valve

    Help needed to mend/replace broken thermostatic radiator valve.

    The top of the radiator valve has been broken - leaving the radiator running on max heat whenever the heating comes on.

    I'll upload a pic to show the damage!

    Can I replace this myself of do I need to call a plumber?!

    Its not urgent - it just gets a bit warm in the room!

    Will really appreciate any help anyone can give me. Cheers!

    23 Comments

    Original Poster

    http://img195.imageshack.us/img195/1112/img0268i.jpg
    http://img140.imageshack.us/img140/4172/img0267bo.jpg

    Edited by: "rchan" 21st Dec 2010

    you will need to drain the heating system to replace it

    Original Poster

    wow - maybe i need to resize them pics! lol

    - now resized!
    Edited by: "rchan" 21st Dec 2010

    you can replace that your self, the nut of the head is still on the valve, just unscrew it, then get a new valve and just use the head.

    no need to drain the system

    souljacker

    you can replace that your self, the nut of the head is still on the … you can replace that your self, the nut of the head is still on the valve, just unscrew it, then get a new valve and just use the head.no need to drain the system



    Agreed with this guy. the very top silver 'threaded' ring. Unscrew it, should be able to by hand, don't worry, you won't flood the house, and replace, simple. £7 approx. replace.

    You do have to get the exact make and model that's already installed or it wont work. You can't mix and match heads with valves. If you can still buy that valve, do as souljacker said.

    Original Poster

    now googling 'Drayton TRV 4 head'

    Original Poster

    souljacker

    this one might … this one might fit:[url=http://reviews.homebase.co.uk/1494-en_gb/124600/reviews.htm]http://reviews.homebase.co.uk/1494-en_gb/124600/reviews.htm[/url]



    Looks like it will... its is the Drayton TRV4, not sure I need the set though? Especially at £44.99!

    rchan

    Drayton TRV 4 Thermostatic Radiator Valve - Chrome/WhiteStill only need … Drayton TRV 4 Thermostatic Radiator Valve - Chrome/WhiteStill only need the head /control unit.



    I don't think you can but just the heads to be honest

    http://www.plumbnation.co.uk/site/drayton-trv4-thermostatic-radiator-valves/

    this complete valve is £19

    Edited by: "souljacker" 21st Dec 2010

    Original Poster

    thanks :-)

    will provide an update with with what happens - and if I flood my house!

    rchan

    thanks :-) will provide an update with with what happens - and if I flood … thanks :-) will provide an update with with what happens - and if I flood my house!



    no chance of doing that if you just take that ring off

    Original Poster

    Just tried it, no water :-)

    Just need to get the part now!
    Edited by: "rchan" 21st Dec 2010

    Original Poster

    Actually another radiator doesn't work at all - (it did be before) - tried bleeding it.... no joy. Any suggestions?!

    To make it work in the meantime you need to press down that little round rod sticking out the top. If you have a small G-clamp or similar you should be able to do it. May need a small bit of wood under the nut or valve to get something to press against.

    Just check if the plunger is working too by pushing it down with a coin, if it moves and returns to its original place it should be a simple case of replacing the head, if it's seized the whole valve will need replacing.

    rchan

    Actually another radiator doesn't work at all - (it did be before) - … Actually another radiator doesn't work at all - (it did be before) - tried bleeding it.... no joy. Any suggestions?!



    Is a TRV fitted to this rad?

    Original Poster

    Broxy

    Is a TRV fitted to this rad?



    There is indeed. But this one doesn't appear damaged!

    rchan

    There is indeed. But this one doesn't appear damaged!



    Take the head off and check if the plunger isn't stuck down, if it is get some pliers and gently try to pull the plunger up don't go mad with it though.
    Edited by: "Broxy" 21st Dec 2010

    smartly

    To make it work in the meantime you need to press down that little round … To make it work in the meantime you need to press down that little round rod sticking out the top. If you have a small G-clamp or similar you should be able to do it. May need a small bit of wood under the nut or valve to get something to press against.



    thats to turn the rad off, it will work fine with the head of and the pin up, no need for all that messing

    soul we have moved onto another dodgy rad, keep up

    smartly

    To make it work in the meantime you need to press down that little round … To make it work in the meantime you need to press down that little round rod sticking out the top. If you have a small G-clamp or similar you should be able to do it. May need a small bit of wood under the nut or valve to get something to press against.



    that was referring to the first rad...keep up (_;)

    It does amuse me how some people post in threads when they don't actually have a clue, the reply above and the first reply in this thread...why bother?
    Edited by: "souljacker" 21st Dec 2010
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