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No heating downstairs

  • 26-11-2013 6:30pm
    #1
    willciviceg5
    Registered Users, Registered Users 2 Posts: 143 ✭✭


    Hi, any help on this would be much appreciated. During the summer our boiler was replaced and we only turned it on last week for the first time. The upstairs radiators are heating fine but we are getting nothing downstairs. There is a valve in the hot press for isolating upstairs and downstairs, when this is turned on there as a jet of hot water coming out of a valve at the boiler and the radiators remain cold. When it is off there is no leak at the boiler and the heating upstairs is fine. We have tried to bleed a few rads and they are ok. Any thoughts on what might be our problem as the fact that most of the components are new we are thinking that it might be something simple.


Comments

  • #2
    sullzz
    Registered Users, Registered Users 2 Posts: 2,409 ✭✭✭sullzz


    willciviceg5 wrote: »
    Hi, any help on this would be much appreciated. During the summer our boiler was replaced and we only turned it on last week for the first time. The upstairs radiators are heating fine but we are getting nothing downstairs. There is a valve in the hot press for isolating upstairs and downstairs, when this is turned on there as a jet of hot water coming out of a valve at the boiler and the radiators remain cold. When it is off there is no leak at the boiler and the heating upstairs is fine. We have tried to bleed a few rads and they are ok. Any thoughts on what might be our problem as the fact that most of the components are new we are thinking that it might be something simple.

    Post a picture of your hotpress including all valves and indicate which valve your turning, by the sounds of it your opening the filler valve for your heating which is overpressurising your system causing your safety valve to open , it sounds to me like you have a motorised ( zone) valve which isn't opening, pics of your hotpress will clarify this , check that the downstairs room stat is turned up.


  • #3
    shane0007
    Closed Accounts Posts: 4,677 ✭✭✭shane0007


    What is the pressure reading on the boiler?
    TBH, I would ask whoever installed your boiler to return & evaluate the system & ensure you fully understand how to operate the system, along with how to correctly top up your system if/when required.


  • #4
    willciviceg5
    Registered Users, Registered Users 2 Posts: 143 ✭✭willciviceg5


    sullzz wrote: »
    Post a picture of your hotpress including all valves and indicate which valve your turning, by the sounds of it your opening the filler valve for your heating which is overpressurising your system causing your safety valve to open , it sounds to me like you have a motorised ( zone) valve which isn't opening, pics of your hotpress will clarify this , check that the downstairs room stat is turned up.

    Thanks for the the info, I'll take a couple of pics and have then up in a few minutes


  • #5
    willciviceg5
    Registered Users, Registered Users 2 Posts: 143 ✭✭willciviceg5


    shane0007 wrote: »
    What is the pressure reading on the boiler?
    TBH, I would ask whoever installed your boiler to return & evaluate the system & ensure you fully understand how to operate the system, along with how to correctly top up your system if/when required.

    Just under 2 bar, yeah I agree I'm not familiar with how these work, so I want to make sure I don't damage anything


  • #6
    willciviceg5
    Registered Users, Registered Users 2 Posts: 143 ✭✭willciviceg5


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  • #7
    sullzz
    Registered Users, Registered Users 2 Posts: 2,409 ✭✭✭sullzz


    The blackknob above the gauge attached to the silver flexI pipe repressurises your heating, is this the one you were opening?
    By looking at this the red box below the gauge controls the downstairs rads, if your room stat is turned up, get someone to turn on your heating and listen for the box to make a noise like a motor turning, and then turn the stat down and listen for a noise again


  • #8
    shane0007
    Closed Accounts Posts: 4,677 ✭✭✭shane0007


    Is the motorised valve (the red box) for upstairs & downstairs or is there a separate one for upstairs & that one is for downstairs?
    The red manual valve in the bottom of the picture (the cylinder balancing valve) might need opening as it may be mistakingly closed completely. Turn fully off (clockwise) and then anti-clockwise one full turn.


  • #9
    sullzz
    Registered Users, Registered Users 2 Posts: 2,409 ✭✭✭sullzz


    shane0007 wrote: »
    Is the motorised valve (the red box) for upstairs & downstairs or is there a separate one for upstairs & that one is for downstairs?
    The red manual valve in the bottom of the picture (the cylinder balancing valve) might need opening as it may be mistakingly closed completely. Turn fully off (clockwise) and then anti-clockwise one full turn.
    There is 2 motorised valves, the last pic and 2nd last pic are 2 different valves


  • #10
    shane0007
    Closed Accounts Posts: 4,677 ✭✭✭shane0007


    sullzz wrote: »
    There is 2 motorised valves, the last pic and 2nd last pic are 2 different valves

    Ahhhh, didn't spot that. Thanks.

    Then, check to see if the balancing valve is off & the downstairs MV might have had it. Try sliding the valve lever to the manual position.


  • #11
    willciviceg5
    Registered Users, Registered Users 2 Posts: 143 ✭✭willciviceg5


    shane0007 wrote: »
    Ahhhh, didn't spot that. Thanks.

    Then, check to see if the balancing valve is off & the downstairs MV might have had it. Try sliding the valve lever to the manual position.

    Ok upstairs isn't heating now either. Both are set to auto, when I put it to manual it goes back by itself, that valve is open.


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  • #12
    sullzz
    Registered Users, Registered Users 2 Posts: 2,409 ✭✭✭sullzz


    willciviceg5 wrote: »
    Ok upstairs isn't heating now either. Both are set to auto, when I put it to manual it goes back by itself, that valve is open.

    Ok so, water pressure is ok, are room stats up full, does time clock Set to on, on upstairs and down stairs, does boiler attempt to fire? , what is happening at the boiler


  • #13
    willciviceg5
    Registered Users, Registered Users 2 Posts: 143 ✭✭willciviceg5


    sullzz wrote: »
    Ok so, water pressure is ok, are room stats up full, does time clock Set to on, on upstairs and down stairs, does boiler attempt to fire? , what is happening at the boiler

    Room stats up full, heating on constant on, boiler firing fine and heating tank fine, new circulation pump fitted with boiler


  • #14
    sullzz
    Registered Users, Registered Users 2 Posts: 2,409 ✭✭✭sullzz


    willciviceg5 wrote: »
    Room stats up full, heating on constant on, boiler firing fine and heating tank fine, new circulation pump fitted with boiler

    2 channel or 3 channel clock ?


  • #15
    willciviceg5
    Registered Users, Registered Users 2 Posts: 143 ✭✭willciviceg5


    sullzz wrote: »
    2 channel or 3 channel clock ?

    Sorry, what do you mean


  • #16
    sullzz
    Registered Users, Registered Users 2 Posts: 2,409 ✭✭✭sullzz


    willciviceg5 wrote: »
    Sorry, what do you mean

    Can you select, heating on for upstairs, downstairs and hot water individually


  • #17
    willciviceg5
    Registered Users, Registered Users 2 Posts: 143 ✭✭willciviceg5


    sullzz wrote: »
    Can you select, heating on for upstairs, downstairs and hot water individually
    No just a timer and a switch for the immersion bath and sink, I just noticed that the light on the thermostat's aren't coming on


  • #18
    shane0007
    Closed Accounts Posts: 4,677 ✭✭✭shane0007


    Slide the motorised valve to manual but wiggle it a bit so that it grips the valve ridge that holds it in the manual position.
    Failing that, hold in the manual position & feel the pipe to see if heat is passing the valve.


  • #19
    willciviceg5
    Registered Users, Registered Users 2 Posts: 143 ✭✭willciviceg5


    shane0007 wrote: »
    Slide the motorised valve to manual but wiggle it a bit so that it grips the valve ridge that holds it in the manual position.
    Failing that, hold in the manual position & feel the pipe to see if heat is passing the valve.

    That's sorted it, all heating now fine, you're a legend. Thanks very much for helping me out. What do you think is wrong with the thermostats?


  • #20
    shane0007
    Closed Accounts Posts: 4,677 ✭✭✭shane0007


    willciviceg5 wrote: »
    That's sorted it, all heating now fine, you're a legend. Thanks very much for helping me out. What do you think is wrong with the thermostats?

    Just gone faulty. A simple & inexpensive replacement. If you are replacing it yourself, ensure the mains power is dead to the stat as it may not be taken from the boiler spur.


  • #21
    willciviceg5
    Registered Users, Registered Users 2 Posts: 143 ✭✭willciviceg5


    shane0007 wrote: »
    Just gone faulty. A simple & inexpensive replacement. If you are replacing it yourself, ensure the mains power is dead to the stat as it may not be taken from the boiler spur.

    Would it be unusual for both to go at the same time, is it actually the valve or the switch


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  • #22
    shane0007
    Closed Accounts Posts: 4,677 ✭✭✭shane0007


    Sorry, you said the light was not coming on in the stat so I incorrectly assumed it was the stat was faulty. That would signify no power passing the stat. If so, then no power to pass to the MV.
    If you are competent to use a multimeter, not a phase tester, you would need to back step each section of the electrical circuit from the MV to the stat to the supply supplying the stat (whether it be a switch or a spur or a timeclock).
    If not a decent RGI or electrician would quickly find the culprit.


  • #23
    willciviceg5
    Registered Users, Registered Users 2 Posts: 143 ✭✭willciviceg5


    shane0007 wrote: »
    Sorry, you said the light was not coming on in the stat so I incorrectly assumed it was the stat was faulty. That would signify no power passing the stat. If so, then no power to pass to the MV.
    If you are competent to use a multimeter, not a phase tester, you would need to back step each section of the electrical circuit from the MV to the stat to the supply supplying the stat (whether it be a switch or a spur or a timeclock).
    If not a decent RGI or electrician would quickly find the culprit.

    I'll leave that to a pro, the main thing is we have heat now. Thanks very much for going out of your way to solve this for me, much appreciated. Thanks again lads


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