My old manual thermostat was only one set of wires(L1 and T1). I see the extra white wires off to the side. How should I connect it?
999073
Answer is to be found in other answers. However, the electronic thermostat needs to be energized all of the time (not the case for a "manual" thermostat) and so two of the wires going to the electronic thermostat need to be connected to 240 VAC. The other two wires are to be connected to the heating element. Thus you must determine/separate from the wires available two wires that run to the circuit breaker (supplying 240 VAC) and two wires that go to the heating element. Sometimes, two heating elements are involved. In every case that I have seen, you will see the mentioned pairs of wires entering through separate holes in the back of the box. When wired as intended, one result of using the new electronic thermostat is that no voltage will be present at the heating element when it is off - not now the case. Invest in a very low cost multimeter to use to measure voltage and resistance.
543759
The thermostat that I replaced had "Coleman-Mach printed on the cover, but no model number. The system had heat, off, fan and cool. The fan had "on" with either high or low and "auto", also with low and high. The were six color coded wires on the old unit, as well as the replacement. Blue, brown, green, red, yellow and white. If your old thermostat has six wires as well, I don't see why this model wouldn't work just fine for you. I am very pleased with the way my replacement works.
570888
I would suggest calling Honeywell. They should be able to talk you through the installation. I found the instructions that came with my unit were not very well written, as they failed to address different color codes. My wires as well as a friend's didn't match the instructions, but a call to Honeywell got us going just fine.
2169414
Most thermostats only require 2 lugs for wires most have other lugs for air conditioners. There is some that paint a color on the screws. If you have an ohm meter you can test the lugs that work when you turn the tempature up and down. That is where you connect the wires.
2221042
Yes you should be able to connect the same wires to the same post on the thermostat. mine also came with directions. You should be fine.Good luck
373222
This is a relatively easy fix. The heating element wires tend to become disconnected over time as the unit is moved about and bumped back and forth. Remove the lower plate, take a phillips head screwdriver and remove the five screws holding the base plate. Lift the base plate and there in the back, odds are, you'll see that one of the wires has simply slipped loose of the connector. You can push it back on and then crimp it slightly with a pair of needle-nose pliers and it is less likely to come loose again.
982918
My thermostat has two wires and my solenoid value has two wires. I just connected one wire from the thermostat to one wire to the solenoid. Likewise, I connected the other wire from the thermostat to the other wire to the solenoid. The two transformer wires that provide power are connected directly to two terminals within the thermostat - under its cover.
1956327
First of all you don't have to activate this sensors. Wires from thermostat should have connection to this sensors. You connect the sensors first and then thermostat. Hope this helps. Let me know if you have question.
493572
Again look for the white square with a model number on the thermostat. The new one had the exact model number as mine.
1498978
Most likely. If you turn off the power to your existing system and pull the existing control away from the wall you should be able to see which wires it uses. Don't go just on the color of the wire look at the label on the existing thermostat. Compare this to the diagrams in the manual (http://www.luxproducts.com/support/TX1500E_ENG_Manual.pdf) and make sure you've got all the right connections.
2035907
I just used the wires supplied from the unit itself. Simple 3 wire connection. There are no additional connections or additional wire needed. Simple instructions will show you where to connect them. Should you have any issues, please let me know. You will be very happy with this unit. I am. Ron, Mesa, AZPS remember to shut off A/C unit breaker before attempting to install.
1370894
i wired mine as follows:1&2 = load know that 1 & 2 connect to a single wire of the heat/cold source. only one wire from heat will connect to 1 & 2. u only cut one wire of the load(heat supply) and connect to 1 & 2. 3&4 = power5&6 = sensorworx4me, lucku u
93839
The only thing that i can think of is that the neutral and hot wires are backwards. Neutral should be white, hot should be black. A volt meter would be needed to be sure.
15539
I'm not an electrician, but you might get some help here: http://jmbldwn.com/post/13265831545/got-my-nest-thermostat-working. In my particular case, the heater had a built-in and very simple thermostat...not much more than a single pole switch, really. I opened up the heater and wired the red and black wires exactly where the internal thermostat was connected, and then I ran low-voltage wire to my new thermostat. Worked like a champ - and still does!
1847694
This is also what I need to know...I have the same junk thermostat I figured this should be a nice upgrade one way or the other its going in....It's a shame you cant find decent instructions, as many people that buy thermostats you'd think that they would have a ton of instructions/upgrading info etc...
343851
Honestly I had the same problem. the wires aren't lined up right. you have them matched incorrectly. hard to know without a diagram. I had someone help me with a lead tester. that helped to at least identify the hot wires. then you just match them up to the right ones on the unit.
422676
There should be 5 terminals on the control module, which connect to the thermostat. They are marked like "Y, W, R, G, C" stand for Yellow, White, Red, Green, and Common. I disconnected the "R" wire and connected the switch in between. The two wires you talked about might be the one went to the out door unit (24 V). Double check it by following it where it goes to. You can also check your thermostat two see how many wires are used.