Mistakes made when hooking up a thermostat Avoid them watch

Often when installing a thermostat people have no or little idea of what to do. Thermostatscan be a little tricky BUT this is a pretty good plain answer what each terminal does on the back plate where you hook your control voltage wires.

[@maryjanemoore7261]

Great info! The “main” speaker obviously knows what he’s talking about! The camera guy really should be quiet and let the speaker finish. He’s rushing him. Switch places if you need to, but don’t talk on top of the speaker.

[@unkhammunankh7252]

Excellent video! Definitely gave me a greater understanding on how the basic wiring of the system works as I prepare to embark on a diy thermostat replacement adventure. Thank you, guys!

[@jillflanagan3994]

Glad these guys had the answer I was looking for! The O/B solved my problem, the manual said nothing!

[@Keifsanderson]

Thanks. This was a basic but clear and helpful video. I was swapping thermostats and the connections on the two were not the same, and this helped me get it correct.

[@NathanRChristie]

I just wanted to say thank you for this video, it is a very good explanation of the thermostat wiring. I just purchased a home and am installing a new thermostat, this really helped. I just wish you were closer to Mississippi so I could hire you.

[@tansit2344]

Good video. This helped me clear up some confusion with my Honeywell RTH8500 and its separate "E" and "W2" wires from the old 7-wire bi-metal mercury switch thermostat. I have W2 running to Aux on the Honeywell terminal block and the system tested fine, just wanted to be sure.

[@meghanmccarthy879]

you are the best, 2 hrs on the phone w/someone in India 2 min watching you.

[@jamesdavis7775]

EXCELLENT! Cleared up a ton of questions.

[@SPECIAL3RD1ZED]

Wasn't sure about this video at first but as I continued to watch it helped me a lot. The O/B section solved my problem.

[@deenadclute1182]

THANK YOU SO MUCH FOR THIS!!!!

[@fly4fun24]

for the first time I understood..When you comparing with a car was BRILLIANT. the y is alway running the O determine if it is cool a heat.

[@waterfalls209]

Keep it simple stupid great job guys!!!!! Understanding makes it so much easier

[@raedsalem8540]

Great explanation through out especially about the jumper wire.

[@michaelmorgan1134]

Excellent video. Didn’t get bored. Very well presented and understood. Good job!

[@peterj.haskett6994]

Hello and thanks for the videos. I am replacing an old mercury based Dayton thermostat with a White Rodgers 1F78. It appears the wiring scheme is unorthodox for this old thermostat but it worked perfectly, I just wanted to convert to digital. Anyway, the blue wire was connected to R5, White wire to Y6 and Red wire to W4. I am trying to figure out which ports are equivalent on the 1F78 because it seems to simply stay on. I have heat only; a Weil-McLain boiler

[@sethj7071]

Thanks! all i needed to know was what the other color for my AC unit was. one was on the 24v, which made sense but was having a hard time finding out where the other wire went to compete the circuit

[@JoeLinux2000]

This is a good and helpful video, but I think on your large chart it would be better to show not only the Thermostat connections, but the connections on the furnace or AC (heat pump) unit that the thermostat is connecting to. Also for some archaic reason the industry continues to use the colors of wire as the recipe for hook up. In other words, a red wire is connect to "R" on the Thermostat and to the "R" terminal on the furnace control board. However you could actually use any color wire to connect "R" to "R". It would make a lot more sense to have "R - 24 volts" printed on the furnace board and more importantly in the manual or documentation. I've found the documentation included with a new Goodman furnace to be particularly pathetic in this regard. Another oddity if there weren't enough is "G" to stand for room air fan or Fan . "Y" for AC compressor. Who would have guessed? Why not "AC" for AC, and "F" for fan? On the control board and eeven inside the the thermostat it could be printed as "G - fan" Then there could be a note or sticker or printed into the plastic "Note large letters = traditional wire colors make sure the proper devices as specified are connected together regardless of actual wire color. Apparently a traditional simple thermostat had two terminals and a single insulated wire with individual red and white wires inside. "R" was meant to hook up to one side of a 24 volt transformer, and "W" (the white wire) was meant to go to one side of the gas valve with the other terminal of the gas valve connected to the transformer. When the thermostat closed, the circuit was completed and the gas would open, and the gas would be ignited by the pilot light. Perhaps all of this should be taught in Jr. High School, making American education more relevant and practical.

[@thomasferry4255]

Thanks you really help me out. I was having trouble connecting my new thermostat and the OB was the problem when I switched it to heat pump it came on correctly. Thanks again.

[@ronaldharris5562]

good video thanks. im an Electrician but ran in a few. i have a customer that wants to replace a programmable thermostat with a Horizontal non programmable thermostat. i havent even looked at the situation yet but its good to know what each one actually does instead of replacing wire for wire.

[@chrishidden6674]

Thank you, a great straight forward explanation of the basics.