How To Install Honeywell Home Wifi Smart Thermostat

[@UnitedCanuck]

Thanks for taking the time to make a comprehensive video. It was very helpful. Now, I will go check if I have a C wire.

[@sandyneises4504]

Thank you! This video gave me to confidence to do it myself. I appreciate your time to do this.

[@z06ix]

I have the same old wiring setup, I am setting up mine and was wondering you have a r to rc red jumper. What do you do with the jumper on the new plate? The instruction say if you have a r and rc jumped to remove the jumper on the new plate, I see you didn't do that. Am I missing something? Thanks....

[@davidmontez7435]

I need to know this also😢

[@ncooty]

It's fine to jump R(h) and Rc if: (a) your heating and cooling are controlled by the same control panel (such as from the air handler on your A/C or furnace) OR (b) you have separate heating and cooling control panels (e.g., A/C + gas boiler), but you don't care that the thermostatic input power comes from only one of them (and, therefore, that turning off that system shuts off thermostatic control for both systems). Odds are good that you're in condition (a), above. If you're in condition (b), I'd suggest running a separate R for each and not jumping Rh-Rc. That way, as long as either system is powered, your thermostat is powered. I'm not an HVAC tech, though.

[@fn1mjn]

Thank you! This video was amazing! I installed my thermostat successfully and it needed a lot of wiring which I did myself, thanks to you!

[@pastorjohn4337]

Thank you for doing this video. It made my installation so much quicker and easier. I really appreciate the time you took to make this video available. Thanks again.

[@benbens5847]

Excellent tutorial! Thank you!

[@louzinzi2279]

Thank you for this video... Flawless installation.

[@staceymamea6606]

Best video ever! It totally worked for me! So thankful!

[@russellhacker6029]

I installed mine and it's working perfectly. My questions are: is the "Differential" setting the difference between what the actual room temp is compared to what the stat is reading or, an offset temp where it has to drop that differential setting before activating the furnace? Also, is there no backup battery if we lose power or does being connected to the net mean we we don't need it?

[@wbforsure2104]

If you lose power in your home your heat/ac isn't going to work anyways so there's no need for backup power

[@ncooty]

​@wbforsure2104 : The purpose of a back-up battery is to retain the settings and ensure that the system continues to operate as programmed when power is restored.

[@harryberry474]

@@ncooty ...So are you saying anytime there's a power outage all thermostat settings are lost and have to be reprogrammed for this Honeywell thermostat ?

[@ncooty]

@harryberry474 I'm unsure if that's the case with this particular thermostat; sorry. Some have small internal batteries, whereas others store and access settings via an app (versus in the wall unit). (On older-style thermostats, the settings were mechanical, so it wasn't an issue.) I should also have mentioned that some units use replaceable batteries to power the unit itself without a c wire (common) or parasitic draw.

[@harryberry474]

@@ncooty ...Yeah my cruuent thermostat has battery back up no "C" wire connected but my new Honeywell RTH9585WF doesn't have batteries but does have 3 small capacitors unsure if they are for back-up or something else. I do have the "C" wire wrapped around the wire bundle inside the wall I'm good to go just have to check if it's connected at the HVAC control panel inside the heater. Right now I'm just researching info as much as I can before doing the change. Even if it doesn't auto back-up it's a minor inconvenience .

[@vivian9803]

If you're watching this video, please take the time to level the backplate and attach it to the wall with the included anchors and two screws - it will ensure that the thermostat is secure and properly installed.

[@djtimemasheen7585]

yeh, it makes sense to me

[@SteveTabs645]

So I have a common wire that’s not being used right now on my current thermostat. Do I just connect it on both ends on the C terminal to get this thermostat to work?

[@MarvelvsCapcom2]

Do you need to turn off power to the furnace as well or just the air conditioner?

[@ncooty]

It depends on whether the furnace feeds power on the thermostatic cable. This would usually be indicated by a wire from a furnace control panel connecting to the "Rh" terminal on a thermostat. The best way to tell is to check the thermostatic cable for voltage before messing with it. If you read voltage or an NCV beeps, you haven't cut all the power to it.

[@qualitystrength6274]

I have a orange wire where does that go

[@josephwaters94]

The orange wire is usually for a heat pump which should go to the "O" terminal.

[@MikePeterschick]

Great , helpful video!! Thank you

[@narref04]

Thank you fornthe video. My home came with an orange wire connected to the "O" slot in the original Honeywell thermostat (10 years old) still trying to figure out where that wire goes in the new smart thermostat since it doesn't have an "O" slot

[@Giantsave]

My system doesn’t have a common wire but it does have an extra wire tucked in, can that be used as a common wire ?

[@Headnsouth]

If you don't have the C wire check that you have a blue wire in both locations. Had to connect my blue wire to the common on both devices. Powered up.

[@ncooty]

If you have a cyan wire, you have a C wire. The only question is whether or not it's connected to line common.

[@satinsangel1688]

THANK YOU!

[@repy123]

Just bought this thermostat, its only for heat and i dont have a C wire. I bought a external transformer that plugs into an outlet that i was told will work. My question is the transformer wires will go into the C terminal and which other?

[@sammajdi2931]

Very informative video, thank you so much ❤ if you could add something, on initial setup, explain 2 stage cooling. I had extra brown wire which I found out must be connected to Y2 in Honeywell thermostat. Not everyone has 5 wires. 🙏

[@Noname4now2025]

Hello IT is weater compensation? Or for underfloor heating?

[@Giantsave]

So if there’s a RH and RC wire and I use the RC what do I do with the RH wire ?

[@JohnTheManMythAndLegend]

I have an old Honeywell thermostat that has an S2 wire…google says it’s the indoor/outdoor temperature sensor. Where would that go on the thermostat?

[@leandrogabrielsalvatierra7106]

I have the same problem. Did you manage to solve it?

[@JohnTheManMythAndLegend]

Nope…just not to buy it.

[@SuperTanker13]

Will this work with a Honeywell whole house ventilation system?

[@paufrancisco17]

Is there a way to connect additional sensor for this?

[@HenryDuyet]

I have the old themostat and have wire R-W-G-C could I install A new Honeywell Smart WiFi Themosstat ?

[@Craigs_car_care]

Very helpful 😊 thank you for taking the time to prepare and share.

[@mikekremer8854]

Do you know how to convert a Lennox Icomfort thermostat to a Honeywell. the issue is the i+ and i-

[@CDXXIX]

Thanks worked perfectly

[@chellysand]

My thermostat is not powering on after installation. My previous brand new thermostat worked just fine.

[@ncooty]

Are you reading voltage between R and any other wire, especially C?

[@Evolved-]

Does this thermostat have an audible "clicking" sound when it turns on? Also, can the screen be turned off completely?

[@Rahayammakon]

Hi I have a question about Honeywell Thermostat, Does it stop working if the wifi service is intrupted ?

[@n721sw]

How does it know what the outside temperature is?

[@jaimedpcaus1]

In my unit, it won't allow me to remove one of the wires. It seems to be stuck and I don't want to break this little flimsy plate. How can I release the wire?

[@satinsangel1688]

How do I set up auto cross over on this thermostat? 😢

[@chilton225]

Is circulate feature for fan less running time than auto?

[@tiggerdcat]

I think it would be slightly more than auto, but less than on. It will run at times intervals to keep the air moving in your home, regardless if your heating or cooling is running.

[@amazder]

Thanks for the video. I do not have a Base plate. How can I install it without a base plate?

[@sqweege6432]

Where did it get the outdoor temp and humidity?

[@Dalton-bo3wb]

Probably the wifi

[@emilygiannattasio3255]

What does stage of cooling mean?

[@rickygoings4823]

I have a RTH9600wf were does the blue wire go the black is marked C

[@iGoldeneYe]

Another very informative video. Thanks for sharing.

[@OneHourSmartHome]

Glad you enjoyed it! I appreciate you for being a long term subscriber!

[@rolor47]

I have an extra green wire which was connected to the O/B terminal. Where do I connect that “extra wire” on the Honeywell thermostat? This unit is an old carrier located in Florida. (Is a heat pump system)

[@LuckyChuckle]

did u figure it out i have same issue, did u try not plugging it in

[@rolor47]

@@LuckyChuckle I did and I was able to turn it on and it was cooling fine, but I was not able to lower or raise the temperature. I have a HVAC coming tomorrow.

[@renecuevas4128]

Tnk u i love all except the little hole for the tstat wires. 5 min to inst and 45 min to wi fi settings. Nit good 4 business ok for home

[@abielo5754]

I had a message saying change the sensor, how and where do I change that

[@marisolhernandez8349]

I tried this and it didn’t work. I called a professional and he said that we popped a fuse because we allowed the RED wire to touch another one. Replaced the fuse and it worked. Lesson learned….don’t let the red wire touch another one.

[@gatordunn1982ge]

That's why he said to turn the power off

[@marisolhernandez8349]

@@gatordunn1982ge, we did that. Turned the breaker off for the AC unit and the room with the thermostat.

[@eattoe987]

thank you for this comment because I just had that happen to me and didn't know why it wasnt turning on

[@justinbarnard8749]

Got it .. dont short circuit the wires thanks

[@jodybrooks2915]

Where was the fuse?

[@jparrales86]

How can I find out the number of cooling/heating stages of my system??

[@Minnieme728]

How much would cost to fit it

[@tiggerdcat]

I bought this particular system simply because it said I could set it up to automatically switch between heating and cooling, stupid Ohio weather, but I didn't see that shown in the video anywhere. Is that gonna be fairly self explainitory or am I going to have some issues trying to set that up? Also, there wouldn't happen to be a lock out mode or anything like that, would there? Uhhh... asking for a friend. Yeaaaah.

[@ncooty]

@0:27: If you're going to advise novices on dealing with electrical systems, I think you really need to give more complete, specific directions. You mentioned turning off power to the A/C system as if it's a single breaker. Many systems have a 2-pole breaker for the compressor and a single-pole for the air handler, which controls voltage to the 24V themostatic cable. You'll see in the comments that some viewers switched off the compressor, but not the air handler, and then shorted the thermostatic line (R-C), blowing the blade fuse on the air handler's control panel. For those folks, it probably would've helped if you'd shown that step, especially given how important it is.

[@RAV21-32]

All of this and still don’t know what the power is for the common wire, I’m assuming it’s 24 v, why is it you cannot put a jumper from the red to the common circuit on the t-stat

[@AbsolutelyPAWsome]

I installed mine but when I turned the switch the thermostat won’t turn on 😢

[@StrongmanLovesAnimals]

How do i repusrpose the G wire for C wire?

[@eric1865]

How do you?

[@medrncsn]

Where is the video for this ? He said it would be in the description and it is not.

[@takeishataylor3328]

Mine won’t work on auto does that mean a wire is not hooked up correctly?

[@vanillagorilla2230]

How do u change to celcious!!!!!!!?????

[@frankbaez3669]

I followed the instructions and installed my new thermostat but now the outside fan unit stays on all the time, what should I do?

[@kiae1195]

Mine won’t turn on 😢

[@omono8120]

Thank you

[@dthstrk1]

I turned the power at the breaker checked the cables and the power doesnt come on. How can i have blown a fuse if the power is off. We only have 1 red cable and with the old system there was a horseshoe connecting both c and rc. The instructions state to remove the jumper ONLY if i have 2 wires. I will have to call a tech. This sucks

[@ncooty]

You might have turned off the (2-pole) breaker for the compressor, but not the 1-pole breaker for the air handler, which is what energizes the 24V thermostatic cable. If that system is energized and you touch R (red/ resource/ hot) to C (cyan/ common/ neutral), then you will short the circuit and blow the 3- or 5-amp blade fuse on the control panel, which is likely located on the air handler. Those fuses are very cheap and easy to replace. Hope this helps. Sorry that happened to you. That said, please be careful working with electrical systems if you're not familiar with them. They can kill you, and KZbin videos aren't always as accurate or clear as they should be. (And in fairness, KZbin commenters--myself possibly included--are often just dangerously over-confident amateurs.)

[@guesswho930]

How do you remove the wires from the thermostat????Help!

[@Headnsouth]

Push in on the little dimple on the wire connector and pull.

[@christianj.riverafigueroa370]

For some reasons the schedule icon desapear from the app.

[@kirostar12]

I have O for Orange wire and don't know where to put in? They have only one connection for W/O/B witch is very stupid.

[@ncooty]

Do you have heat from a heat pump? I.e., can your A/C system run in reverse to heat your home? (Similar questions: Is O connected on the air handler's control panel? Do you read ~24V between R and O? Can you see a reversing valve at the compressor?) If yes, connect orange to O at the thermostat and set the default for heating or cooling depending on your climate. If no, leave it disconnected.

[@kirostar12]

@@ncooty I contact the customer service and they told me to connect the Orange to O/W/B port and the white to W2/Aux/E port and this solved my problem. I may have a heat pump, but I don't think it's reversible, because in the winter the heating is only on gas. I don't know, are there pumps that are combined and work simultaneously on electricity and gas for better economy? So connected like this, the thermostat works perfectly for now.

[@ncooty]

@kirostar12 If the answer to any of my parenthetical questions above was "yes," then you likely have a heat pump that works as your primary heat source (which is extremely efficient). Unless your unit is wired strangely, O almost certainly operates the reversing valve on your A/C compressor: one way for heating (usually the default) and the other way (with O energized) for cooling. W2/Aux is used for a back-up heat source, such as a gas furnace, boiler, or heat strips. Glad it's working for you. I'd vote you don't fix what ain't broke... at least until spring. :)

[@democracysaved2577]

I just put one (Thermostat) in with a taco relay to run my hot water pump (only) now I Don't have to run down stairs to put the pump on manually when I but the heat on!!! I control both from my phone.

[@blueskies00]

Lol Never heard of a taco relay. Is that a game😂

[@democracysaved2577]

@@blueskies00 All you have to do is type taco switching relay and you will see what it is and what they do!!!

[@amaroqz2105]

I dont have C wire. Why is that? It wont turn on

[@newjazzmusic7078]

Where's the video showing how to use the green wire as a C wire ?

[@keithwilson6060]

These instructions are not very helpful if you’re trying to replace an old manual mercury thermostat with the new Honeywell thermostat. I wish some instructions would include that detail.

[@JaySansburn-j9u]

Wilkinson Pike

[@rickygoings4823]

I guess c is common i guess

[@cyndiellenburg]

Yes

[@CarlitoCulpable]

I wonder if you can set a password on this device

[@tiggerdcat]

Trying to lock the kids (possibly hubby, too) out, as well, I see!

[@TammyThomas-u4t]

Bergnaum Mountains

[@universalstudiosshorts9963]

I ordered a c adapter

[@josematanzo5879]

Did not show how to set the time

[@ottobthomas6254]

He squeezed the casing off the red wire. If you look, it’s bare in one spot.

[@lionintu]

Yep downside of using pliers

[@arturoa2800]

My thermostat doesn’t power up? Why is this?

[@RickOnTheDrums]

Make sure your c wire is connected at your furnace. It make be disconnected if it was not used originally. I had that same problem.

[@rontannehill9679]

Sometimes there is a fuse or breaker inside the furnace 3or5amp

[@duymariochannel3885]

The same to me. In my case, i have had an old analog thermostat. The blue wire is connected to the Y. On the Honey i connect the same with. But it doesn't work. Did indo wrong something?

[@r4qu3l50]

So ridiculous that I can’t change it to Celcius

[@johnc4642]

Pos

[@CDXXIX]

It has really good reviews and works fine for me

[@gerrykay1482]

How do I know if I have a 1 stage or 2 stage furnace? No AC