Wyze Thermostat Problem - Heat and Air are mixed up using recommended wiring

@Migs Yes, I had to delete the thermostat from the app, do a reset on the thermostat, and reinstall a new thermostat on the app. :+1:

To be clear, my thermostats were the Honeywell TH6220D versions. The solution for me was to rewire using the “Heat Pump” wiring rather than the “Conventional” wiring and not toggling on the “Swap Heat and Cool” slider. It seems to be working correctly now! :grinning:

Screen Shot 2020-12-26 at 8.03.11 AM Screen Shot 2020-12-26 at 8.36.06 AM

Ok so I pushed the swap heat and A/C, but my A/C unit is cutting on and off constantly. It’s running my A/C while the heat is running. I don’t want to hurt my system so I removed the Wyze thermostat and install my old one. It’s not worth it.

if you have a heat pump, the outdoor unit will be running when you are heating in stage 1. if you do not have a heat pump, then it will not be running. The only way to get that “swap cold and hot” to show up is if you have a heat pump.

Also, this is your first post, you should show us your setup and let us help you, what worked for someone else might not fit your system.

I wired my ecobee 3 thermostat incorrectly 2-4 months ago and could only turn on my electric cooling but not my gas heating.
Turned out that old thermostat could support both conventional heating/cooling units as well as heat pumps, but the terminals on the wiring serves different purpose in each case.
Hope that wasn’t your problem.
In my case, I took a photo of my ecobee wiring and tech support could tell from the color of the wires alone that I had two wires mis-wired and we fixed the problem.

If you have a heat pump then use the lettering on the bottom of the terminal strip to label you wires. If you use the letters on top that is for a non heat pump system.

I replaced my Honeywell thermostat with the Wyze, Wires are Y, Rc, OB, G, C. I set the system up and had the cooling issue. I switched heating and cooling selection in the app and the heater did fire up. I noticed the air was still cold and my heater started to make a whining noise it did not make before. I realized it was firing up my AC unit and the heater at the same time. I could risk this would damage my heater so I swapped back to the Honeywell. Everything returned to normal. I would like to try again but I’m not going to break my system to do it.

You do not have a heat pump if you are not used to having your A/C unit running at the same time as your heat. A heat pump is just an AC unit with a reversing valve and some extra piping that allows the outside to be the cold side and the inside to get warm. If you do not have a heatpump, then that is not an O/B wire, it is most likely an W1 wire. Please post a picture of your old thermostat setup, there are quite a few that have confusing labeling.
This is also your first post, you should ask for help before giving up.
As a sidenote, you probably wont hurt anything running a standard AC and the heat at the same time, but it will dry the air out and not heat very well.

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I have read over and over on this and other threads that just open the advanced settings and toggle the “swap heat/AC”… And like many on here I don’t have that option. I have read and read and nothing fixed the reality that this thermostat doesn’t work with my heat pump system regardless of what the setup instructions say.

The most disappointing aspect of this is the total silence by WYZE. Many, me included have left messages and none have reported they have returned an answer.

For those of you that installed without issue congrats. but there is a whole bunch of us that are twisting in the wind stuck trying to figure this out on our own.

WYZE has let me down on yet another item. I’ll stick to their cams those actually seem to work.

If anyone would like to buy the two I pre-ordered, one still in the shrink wrap let me know. I’d love to unload this debacle.

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Do you have a heat pump? The switch hot / cold option is ONLY for people with a heat pump.
Are you using the common wire adapter? Incorrect use of this adapter will cause your AC to run when there is a call for heat.

I can help you troubleshoot your system, but you might want to read this thread if you are using the adapter.

I have a heat pump,
I have a C wire, so no adapter needed.

I tied moving the W1 to the O/B connector per someone on here that said the O/B connector is the reversing valve. The app stopped and said it was wired wrong. I’m not sure why Wyze won’t weigh in on this issue.

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If you have a heatpump, then you will need to reset your thermostat and re-add it.
Unfortunately, there’s no way to update the wyze’s settings once it is initialized, the only way to do it is to delete it from your app and then press and hold the wyze button until it asks you to reset.
Please show a picture of your old thermostat’s wiring connections, or at least a picture of your furnace’s connections and the current wyze connections and I can help you tell the wyze app what it needs to know to have you set it up properly.

tell the wyze you have the following wires:
O
R
G
C
Y1
Y2
Aux (assuming that W2 in your case is actually Emergency resistive heat strips)

I did see when I said I had a R it mapped it to Rc (maybe Rh I forgot)

So If I tell Wyze that I have the wires you suggest, I’m unclear what wires (that I don’t have) will map to Wyze. I’m not explaining my confusion

I don’t have a AUX on my current therm, But I do have a W2= Does that mean put the W2 in the AUX wire on Wyze?

I have no O wire on my current therm. So what would go to the O/B

I’m not sure what colors from the WORKING therm

will map to Wyze

Your O wire will get remapped to O/B. it is the orange wire. (currently in W1 on your thermostat)
Your R wire will get remapped to Rc. it is the red wire.
Your G wire will stay G. it is the green wire.
Your C wire will stay C. it is the blue wire.
Your Y wire will stay Y1. it is the yellow wire.
Your Y2 wire will stay Y2. it is the brown wire.
Your Aux might be remapped to W1/W2 or they might leave it as Aux. It is the white wire. When it asks you what Aux is controlling, tell it emergency or backup electric heat, assuming it is resistive heat strips.

Just tell the wyze your current thermostat has those wires connected, it will do the remapping for you.

Wow, this whole situation is a Perfect example how a really basic thermostat circuit gets made way more complicated than needed by technology.
Wyze is also rebranding a generic Chinese made product and selling it at a premium.
My local electric company was selling older $200 Honeywell internet connected thermostats for $24 and $175 emersion for $20

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@joebruhn My thermostat arrived yesterday and I spent 4 hours struggling with this issue before I finally got it working. I had to use the adapter and have a natural gas, forced air system. My hot and cold were reversed and I didn’t have the setting to flip them. My solution was in the furnace control board wiring. My thermostat has 4 wires but the furnace had 5; there was only a blue Y at the thermostat but a red and blue Y on the furnace control. When hooking up the adapter, since it wasn’t clear, I moved both red and blue to the adapter, then connected just the adapter Y wire back to the control. By moving the red Y off the adapter and back to the control panel (so the old red Y and new adapter Y were both connected to the control terminal) my system started working correctly on the next test. Hope this helps someone!

Speadie,

I do not have a heat pump. I have a gas furnace with a A/C unit. Wires are as stated previously: rc, o/b, y, g, and c. You suggested that the o/b may actually be a w1 and I can try that. As you can see, this thermostat does not show that wire. I thank you for the continued assistance.

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On your old thermostat, the outside labels are for heat pump, the inside labels are for normal heat/cool. I think that you’ll find that the W wire on the inside is the same as the o/b wire on the outside.
You can just see the W hiding behind the wire.
image

These thermostats use somewhat confusing labeling, in order to do more with less pins.

AH yes!! I see that. Thank you

If I put W1 in O/B

The only one not showing on either the app or your mapping is W2

tell wyze that W2 wire is aux