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I installed a new honeywell rth221 t-stat. All the wires from the old t-stat were then placed on the new t-stat (yellow to yellow, white to white, red to red, green to green except for a black one. I just pushed it back to the wall. I turned the unit on cool and then it seems like it is getting...
Hi- I have a white Rodgers Thermostat- aprpox 1997- w/mercury tube - It has 5 wires coming to it- 2 from my heat / 3 from ac Honeywell says ignor the colors and use the letering They have 5 terminals on the 221 Can anybody give me the right wiring as honeywell isn't clear w/the 3 wires From...
I just installed a Honeywell RTH221 Thermostat. The old one had a red, green, yellow, and black wires. I installed the black one to the yellow connection. Now the unit runs backwards... heat instead of cooling... cooling instead heating. How should I have connected the wires?
I am replacing a honeywell mutlistage thermostat with a programmable one. All of the wire designations seem pretty clear, except that the programmable unit does not have a designation for location w2 (this is a blue wire that's being used with the current thermostat.. do I put w1 and w2together...
I uninstalled the cables on my old thermostat and can't figure out how to match the cables to the lettered terminals or the RTH221. I have four cables: white, orange, red and black. Can someone help me! Thanks in advance.l
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