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My wife disconnected all the wires to the thermostat, I do not know what goes to what. Reading the installation docs I get it that white is to white yellow is to yellow green is to green. But for the power Red it could go in three places RC R or C with the jumper on RC R. Any help would be appreciated. it going to get cold for the family.

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The Red wire goes to the RC-R with the jumper as you are using a one transformer unit. The C is for common and is usually blue in blue in the units I install.

The colors stand letters stand for
W - Heat
Y - AC (outside unit)
G - Fan

Thank you for choosing


Posted on Mar 13, 2011


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I have a Trane XE1000 High Effeciency heat pump, installed in 1989, in the house I am renting. I'm having issues with the air and I think I hooked the thermostat up wrong. I have 8 wires coming out of...

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Hello Cadbiad Jason,

I understand that your wires go to you outside unit (condensor) have been pulled out. To start with you have two thermostat wires look like telephone wire, and three power wires a ground usually bare or green, a white 120 and a black 120 volts.

I would be glad to help you with your problem. The first thing you need to do is shut off the disconnect box located by your unit as you do not want to get shocked by 220 volts.

1. Disconnect all power to the unit and turn off the thermostat.
2. Take the service panel off the side of the unit (1/4 or 5/16 screws)
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5. Replace the service panel
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1 Answer

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