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

Joined
12 May 2012
Messages
15
Reaction score
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
 
Sponsored Links
Joined
6 Mar 2011
Messages
194
Reaction score
35
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.
 
Joined
12 May 2012
Messages
15
Reaction score
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
 
Sponsored Links
Joined
27 Aug 2003
Messages
69,780
Reaction score
2,884
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:

t323595.jpg



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.
 

DIYnot Local

Staff member

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

 
Top