Hi, Maybe this is discussed in here elsewhere, but I didn't find it. I want to replace a Trane TCONT802AS32DAA 5 wire thermostat with a Trane TCONT900AC43UAA 3 wire. Is this possible? The current wiring is Red wire to RC with a jumper to R White wire to W1 Yellow wire to Y Green wire to...

I currently have two zones for cooling only and the thermostat wires are red, blue and white. The red is labeled Rc which is easy, the white is labeled W Heat (this doesn't make sense to me) and the blue is labeled cool? What I think I need to do is connect the red to the Rc on the thermostat,...

I currently have a Magic Chef Model 34154C001 thermostat for an electrical heating and cooling system. This model has 6 wires included: W - White R - Red G - Green Y - Yellow O - Orange C - Black I purchased a Honeywell RTH230B programmable thermostat that only has 5 connections. The...

I am installing a programmable thermostat (upgrading from a previous programmable that wasn't to our liking. When taking the old thermostat off, I noticed 4 of the 5 wires were labelled. That's a good thing. HOWEVER, when I took the old baseplate off, 2 of the labels fell off (not sure from...

I have a gas furnace equipped with central air.The compressor is shot in the AC unit,and I needed to replace the thermostat so I bought a heating only thermostat.I have the blower and the w wires together on the w terminal designation and the rh on the r terminal designation, and I have the y wire...