1. Visiting from the US? Why not try DIYnot.US instead? Click here to continue to DIYnot.US.
    Dismiss Notice

Replacing room thermostat T6360B to TH-7281H - Help required

Discussion in 'Electrics UK' started by foxinthehouse, 12 May 2012.

  1. foxinthehouse

    foxinthehouse

    Joined:
    12 May 2012
    Messages:
    15
    Thanks Received:
    1
    Location:
    Wiltshire
    Country:
    United Kingdom
    Hi, I am replacing my old Honeywell T6360B thermostat with a digital one, TH-7281H (Not Honeywell). I am having trouble getting a power on call. The thermostat has 6 terminals and I have 3 wires (R,Y,B). Connecting red and blue to terminals 6 & 4 gets the thermostat working, lights the readout and produces 26v at terminal 5, but when it calls for heat, I get no 240v at any of the other terminals. Can anyone assist me on this problem please? Be very grateful for any help, as I've been scratching my head for hours.
    Mike
     
  2. Sponsored Links
  3. yorkspark

    yorkspark

    Joined:
    6 Mar 2011
    Messages:
    187
    Thanks Received:
    34
    Location:
    Yorkshire
    Country:
    United Kingdom
    please take time to look at the diagram properly as it shows you the solution

    looking at the wiring diagram it says you need 230v on terminal 3 and terminal 2 is the load all you have done is power the display at the moment.
     
  4. foxinthehouse

    foxinthehouse

    Joined:
    12 May 2012
    Messages:
    15
    Thanks Received:
    1
    Location:
    Wiltshire
    Country:
    United Kingdom
    Thank you Yorkspark.
    So will terminal 3 also power the display or should I loop 6 & 3, as I only have one live wire.
    Grateful, Mike
     
  5. yorkspark

    yorkspark

    Joined:
    6 Mar 2011
    Messages:
    187
    Thanks Received:
    34
    Location:
    Yorkshire
    Country:
    United Kingdom
    red to 6 with a short piece of red to 3
    blue to 4
    yellow with piece of red tape to 2
     
  6. foxinthehouse

    foxinthehouse

    Joined:
    12 May 2012
    Messages:
    15
    Thanks Received:
    1
    Location:
    Wiltshire
    Country:
    United Kingdom
    Thanks again Yorkspark, all working now. Very grateful for
    your help. Mike
     
  7. ban-all-sheds

    ban-all-sheds

    Joined:
    27 Aug 2003
    Messages:
    69,782
    Thanks Received:
    2,858
    Location:
    London
    Country:
    United Kingdom
    Yorkspark - why do you give people instructions to follow which you know they don't actually understand, and basically encourage them to do a sort of electricity-by-numbers job of inserting this wire into that hole without knowing why?

    Do you really think that someone who has so little grasp of electrical wiring that they can look at this for hours:

    [​IMG]


    and not see the representation of a switch, and not realise that they have to connect Line to terminal 3 should be fiddling with it?

    Because I think it's lunacy.
     
  8. DIYnot Local

    DIYnot Local

    Joined:
    3 Sep 2019
    Country:
    United Kingdom

    If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

    Select the supplier or trade you require, enter your location to begin your search.


    Are you a trade or supplier? You can create your listing free at DIYnot Local

     
  9. Sponsored Links
Loading...

Share This Page