How do I figure out if this will work with my wiring? I read that there might be issues with the electric wires (might be missing one COMMON wire?).
1066006
The Wi-Fi thermostat must be powered by 24vac at all times, so it needs a power supply (typically red) and return wire (C or common). Most thermostats don't require a return wire. Take your thermostat off the wall and look and see how many wires you have. If you have both a furnace and air conditioner on one thermostat, you will probably have four wires attached: red (24v power), white (furnace relay or gas valve), green (blower relay), and yellow (compressor relay), though colors may vary. If you're lucky there will be a spare wire you can use for the C (common) wire. If not, you can run an additional wire from your furnace/boiler to the thermostat. Check out this web site: http://www.epatest.com/store/resources/images/misc/how-a-thermostat-operates.pdf It has schematics for just about every possible thermostat arrangement.
1066007
You must supply power to the thermostat. In my case, more wires ran between the furnace and the thermostat than were actually used on either end. I just had to figure out where to connect one of the extra wires on the furnace side, to supply the power to the thermostat.
1066008
Check the number of strands in the existing thermostat wire. You need 3 strands for this thermostat. I had only 2 strands so I have to run a new 3 strand wire.
1066009
I bought the thermostat today, and found out that my original setup had only four wires; missing C wire. But Honeywell have a video showing you how to substitute G wire for C wire. https://www.youtube.com/watch?v=F05lIaNTMB4 Basically, G wire is for operating Fan only mode (no heat / cooling). You loose the ability to use FAN only to power this thing. You have to change wire on the back plate as well as in the A/C-Heater. I'm not very skilled, but I was able to do it, just following the video.
1066010
This Thermostat takes 4 wires. Compare the wiring design of your current thermostat with the Honeywell. I had to run the 4th wire for my system which was the C wire.
855534
You need to connect the existing wires in the wall to the screw connections. Based on your question ( and I'm not trying to be rude) , you should ask someone to help you install this.
563554
Verify that the outlet it's plugged into is good would be the first thing to check. Mine has worked all the time with no trouble but if the outlet is good and working then look on the unit for a fuse maybe but not sure what else to check unless you take it to an electrical technician.
187950
Thats not right. Mine works amazing. Im no electrician, but it sounds like a loose connection in your wiring.
2148462
Before I installed mine I watched a bunch of videos about it on YouTube. They were super helpful. Here's a link and it shows which wires connect to what:https://m.youtube.com/watch?v=U_2bLUhFZbA
904559
I plug mine in and it all work just fine. Not sure. Recheck your wire hookup.
192233
Before going with a problem with the unit I would definitely check all wiring both at the switch and lights. If everything is good with the wiring it could be a faulty unit then.
694528
That sounds like a short in the line somewhere. Occasionally mine does this as well, and has since it arrived, and I have not been able to remedy the situation. After researching it, I found both should work evenly all the time and this is a problem. Sounds like we need new wires.
344148
Be careful with dometic They use a proprietary circuit board with their systems. The wiring might be the same but if it isn't dometic then most likely it won't be compatible. Had to have a service tech to point that out to me.
1609505
I had the same problem. Except my lights came with blue and white leads....After searching a few forums, I learned that they will only work wired correctly; meaning connected correctly, they will come on, wired in reverse they will not light up. I tried them both ways and found this to be accurate.
117729
I tried using what I had as well and ended up buying a bigger unit to plug into the wall and I tried using my wire but ended up buying new wire. Once I got everything in place it works fine but I was frustrated at first trying to use what I had. Good luck
671069
I really don't know.....sorry we had no problems....my suggestion is double and triple check you wiring....probably a curl of wires crossed...
1924815
Not that it helps, but your wiring must be incorrectly done. Also, check your fuses.
1228016
Not sure what the problem would be. Did you make sure the wire from the panel to the heater is the correct size? I had to run all new wire to mine as the old was too thin.
1748915
SK7's answer is very good. Also be sure there is ample bare copper wire inside the wire nuts (to make good contact wire to wire) and that they are screwed tight.
671065
Sounds like you might of hooked up the wires wrong? I would go through and make sure everything is correct
1479254
You may need an electrician! The neutral and ground wires aren't the same thing. Maybe try reversing your gray and black wires. I tried different combinations until I found the right ones. There's also a helpline 1800-468-1502. or http://yourhome.honeywell.com