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Iceman31's avatar
Iceman31
Explorer
May 12, 2019

Help with digital thermostat.

I have been fighting with what should be a fairly simple swap, I am swapping my Coleman Mach thermostat for a Honeywell TH6110D1013 which is a battery operated thermostat. I am attaching a picture of the wiring when I first took it apart. Here is what is coming out of the wall.

Red Wire - which attaches to the grey wire which is attached to GL on Coleman Mach
Yellow Wire - which attaches to the yellow wire on Coleman Mach
Green wire - which attaches to green wire which is attached to GH on Coleman Mach
Blue Wire and a White Wire all spun together which attaches to Blue on Coleman Mach
Second Red Wire - which attaches to Red on Coleman Mach
Second Green Wire - which attaches to White on Coleman Mach

Now on my Honeywell I have these connections

G-
W-
C- Nothing as running off batteries
Y- I assume Yellow Wire
R-
Rc- I assume Second Red Wire as the R an Rc are jumpered.

I am only going to hook up high speed fan so I assume first Red Wire should just be capped and not hooked up. So what wires should be hooked up to G and W on my Honeywell?

I blew a fuse first go around so all help would be appreciated.

Thanks in advance.

Link to image: https://imgur.com/CPsccPk
  • Here you go. https://www.youtube.com/watch?v=T2S8Vq5diAM
  • I had the Honeywell lying around from my house as I replaced the one at home with a wifi capable thermostat.
  • wnjj's avatar
    wnjj
    Explorer II
    Here’s what I can figure from what I found online:

    Coleman GH wire to Honeywell G (high fan).
    Coleman W wire to Honeywell W (heat).
    Coleman Y wire to Honeywell Y (cool).
    Coleman R wire to Honeywell R/Rc (heat +12/cool +12).
    Coleman GL wire capped (low fan).
    Coleman B wires capped but left spun together (common/gnd).

    Is that about what you had when blowing fuses?
  • You need to throw away the directions and go to YouTube. You have to do some different wiring. Been there done that. Just search you new stat and the model of your A/C. Did mine last summer.

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