thermostat - http://www.hvacmechanic.com/ Forums

Original message

lbgheel

71.68.250.218

"thermostat" , posted Wed 5 Mar 21:12

I have a Trane Weathertron baystat240 3AAT80B1A1 thermostat and would like to replace it with a Hunter model #44155c. The wires on the old stat are as follows:

R= Red
T= Brown
O= Orange
G= Green
Y= Yellow
X2=Black
B= Blue
U & W wired together= White

The New Hunter has

g
rc
rh
y/o
w/b
y1

I cannot get it to work maybe I wired it improperly and it will not work, and when I tried to hook up the old thermostat now I have no power to it, please help me on what I need to do.

lew e. wagner

Replies:

Houston204

98.196.66.53

"Re(1):thermostat" , posted Wed 5 Mar 21:25

Your new stat is not compatible with your multistage heat pump.
Trane's B = C (common).
There is a small chance that you can replace a low voltage blade type fuse in your air handler. If you do not have a fuse protecting your transformer, you must now replace your transformer. Always remove power to your air handler before replacing a stat.

"Tip of the Day" Remember to remove power first.

lbgheel

71.68.250.218

"Re(2):thermostat" , posted Wed 5 Mar 21:42

now i cant get the trane thermostat to work so where do i need to check for a fuse in my transformer, i have no power on the thermostat now

lew e. wagner

Houston204

98.196.66.53

"Re(3):thermostat" , posted Wed 5 Mar 22:01

It would be inside of your air handler. 240 volts will still be present with a popped low voltage fuse or a damaged transformer. Remove power to your air handler before working in there.

If you post the model number someone here may be able to post your manual or a picture of your board.

I can post some examples though...

"Tip of the Day" Remember to remove power first.

lbgheel

71.68.250.218

"Re(4):thermostat" , posted Thu 6 Mar 13:23

thank you for the support I replaced the fuse and now I have the original thermostat working.

lew e. wagner

Houston204

98.196.66.53

"Re(5):thermostat" , posted Thu 6 Mar 19:09

I'm happy to have helped. :)

"Tip of the Day" Remember to remove power first.