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Nest Thermostats
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Forum Posts

Need help with setup? Troubleshoot common Nest Thermostat problems

Here are some steps I recommend to resolve issues during the setup of Nest Thermostats.Before trying these stepsMake sure you're using the correct app for setup. Need help checking which model you have? Use the Google Home app to set up the following...

David_K by Platinum Product Expert
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Not Cooling

I got Nest E 1 Gen and used it winter time well. But yesterday when I tried to cooling, hot air was flow out from duct. So I checked again wire connections and compare to previous connections. Old controller has yellow Y/Y2 and orange O/W2*. But I co...

Yoo1 by Community Member
  • 22 Views
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Is my system Nest Thermostat compatible?

Hi, Is my system compatible for a Nest? There is a couple wires that are confusing me! It is labeled with these wires.C, O, W/E, W2 on the left. And R, G, Y on the right. There is a blue wire going into the “O”. Thanks

Peak33 by Community Member
  • 26 Views
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Y/Y2 terminal on old thermostat.

I am installing a NEST Learning Thermostat 3rd Gen. I have a Carrier Heap Pump, model 25HPB642A300. The documentation indicates it is a single stage unit. The old thermostat has a Y/Y2 terminal. I did not see any documentation on this for the Nest. T...

ewingman by Community Member
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nest thermostat wiring issue 6 wires

current wiringwhen i went to set up my new nest thermostat is says its not compatible. my heat is running of propane an di think i have a humidifer on the system but no idea if it works. any thoughts on how to wire this?

thermostat current.jpg
Jmeese by Community Member
  • 49 Views
  • 1 replies
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Will a Nest Thermostat work for me?

I have a Freidrich heating and cooling unit in our bonus room. It was wired but we never had a thermostat installed. When it was installed we told them that we wanted to eventually hook up a Nest thermostat but I'm thinking that this is not an option...

mcpen by Community Member
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  • 1 replies
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Nest model E error code E194

I've had my Nest installed for 1 year , yesterday got an Error E194 The schedule is still running the furnace fired up at it's regular time this morning and seems to be running fine.Any Idea what's going on ?I've checked all the suggested things alre...

KiethC by Community Member
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Power connector wiring mistery

I bought a Nest 2020 for my heat pump system and have been having continuous issues with it (so far going on my 3rd replacement in 4 months). Agents can't agree on whether I need a Power Connector or not (some say I do, other that I don't).Bought one...