Honeywell thermostat replacement. 

Excellent. Simple. Straight to the point. No fluff. I wish you did a video on everything I have to change.

Of courrrrse I find the perfect video with the perfect teacher with my exact old thermostat and the one I wanted to replace it with, but I have seven wires, not five 😢😢😢😢😢

THE BEST instruction video I have seen! the instructions were clear and very easy to follow. OH! and thank you for the VERY helpful hints on taking a picture of the previous set-up AND the importance of spreading the wires ("like spider legs") to avoid a very unpleasant (and costly) situation! And NOW we have heat!! ("I did that!")

I did not need to replace my thermostat, but I couldn't figure out how to get the cover off to change the batteries. This video was perfect for removing the faceplate! New batteries installed!!!

You are such a great teacher! You mentioned so many things I wouldn’t have known! You answered all the questions I had and now I feel comfortable trying it myself!

I shorted out my transformer by connecting the blue wire to "B". In the old thermostat it was connected to "C". Since Blue wire was connected to "C" (common) in old thermostat, this means it was the return leg of 24V that is supplying power to the thermostat. It's the same on your old one since yours did not have any batteries. You can see on your old one were it is labeled "C is optional with batteries". On the new one the batteries supply the power to the thermostat and there is no "C". Connecting the blue wire to "B" on the new one will short the transformer as "B" is the terminal for the reversing valve for heat pump heat mode.

Wow wow Straight to point , quick and clear . God bless you bro

Good video, but do not connect the "C" (blue) wire to the "B" terminal. In his case, he has a conventional single-stage heat/cool system so it did not impact anything. On a heat pump system, this will short out the system. If you have a "C" wire and no "C" terminal, tape it off and do not use it. The old thermostat used the "C" wire to power the thermostat. The new thermostat uses batteries to power the thermostat so does not need a "C" wire.

Thank you brother!. Straight to the point.

Crystal clear - Great clip Thanks for sharing Liked & Shared

Thank you! You teach well.

Bravo! excellent explanation. Ty

Thanks bro I am about to do my hvac test.

I have separate thermostats for each floor in the house. If I take the wires out of the one in the basement, will it be safe to leave or do I need to secure the wires somehow? I’m tired of the other people in my house putting the heat on in the basement and forgetting to shut it off making the whole house overheated. I need to somehow prevent the basement thermostat from being turned on but it’s not possible to put a lock box on it.

And how would I change the batteries on the new style thermostat?

My old wiring has jumper wire connected to RC and RH. I don’t see it on the new on. Do I still need it?

THANKS SO MUCH!!!

My Honeywell TH8321R1001 is short cycling. When I looked at the wiring the red wire is not inserted in the terminal. Instead it's wrapped around the opening to the R and RC terminal. Could this be the cause of the short cycling?

Why my contractor plunger won’t pull in when I use heat please

My electric air conditioner is running continuously even when the indoor temperature is cooler than the desired temperature. The electric heater doesn't do this though. It stops once the house gets to my desired warmth Both the air conditioner and heater are connected to the same thermostat though. Do you think this is a thermostat issue or a system issue ?

4:59

Why is the blue wire on your c?

I can't figure out how to change the day of the week on my TH8321U1006 Honeywell thermostat..Can anyone help?

🙏🙏🙏

If you don't have a "C" terminal available, sometimes, the "B" terminal can be used for the "common blue" wire. But please, read the installation instructions for your particular thermostat model first.

Battery replacement