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Questions tagged [nest]

The Nest is a programmable, internet-enabled thermostat

210 questions
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Doorbell transformer is this it?

I am going nuts trying to find my doorbell transformer. Someone suggested it may be this. But doesn't look like one to me. Is it? If not any suggestions where it may be?
Tazbud33
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Why is my indoor A/C Blower randomly turning on and off only with Nest?

I recently purchased a Nest Thermostat (3rd Generation). My old thermostat was working perfectly. I wired Nest the Same exact wiring as the old thermostat which is : Y1 W1 G RH RC. With Nest, the indoor fan blower randomly turns off for 3-10…
Jayy
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Why won't my thermostat control the HVAC anymore after trying to switch thermostats?

I bought a new Nest thermostat which is supposed to be compatible but needs a professional installation (advice that should have been heeded by non-professional electrician me). This is to replace an old finicky thermostat that must be original with…
justanotherguy
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Furnace blower motor runs briefly then turns off

I have an Amana AMH80804BN with a Nest thermostat (wires Y,C,Rh,W,G) and a 3 ton AC. I have been having issues with the AC portion the furnace (heat) seems to work fine. The AC will start out the day working great! Cold air blows out it will run for…
Chris Yoakem
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Is the Nest thermostat smart enough to turn itself on BEFORE you get home?

I'm wondering if in "Away" mode, is Nest smart enough to learn about when you come home, and kick on approximately 30-40 minutes BEFORE then? Or does it only kick on when it senses you've come home? Also, can you control how much it lowers the…
AgmLauncher
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How do I replace my old Honeywell thermostat with a Nest?

Just moved to a 1985 built house in Ontario, Canada that has a Honeywell thermostat that I'm trying to replace with a Nest. I am unable to understand the labeling of the current thermostat as the wiring diagram is partially torn so I'm not sure how…
eszed
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Nest thermostat causing condenser unit contactor to chatter when NOT calling for cooling

I have dual transformers, separate heating and AC. I've recently installed a nest learning thermostat (3rd gen). This is my wiring. The c wire comes from the the transformer on the AC side (pairs with Rc). The system works and is able to call for…
David Li
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Can someone assess my original thermostat's wiring setup?

This is a new world for me, I haven't messed with circuits since physics 101. When I watched a quick youtube tutorial on setting up my Nest E, I thought it'd be a simple "move wire in old C, to new C in Nest." But I'm looking at my old thermostat…
Chris
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How do I add a "c" wire to the boiler for a Nest thermostat?

I have a Lennox wall mounted boiler (gwm 075ie), I am trying to connect a "c" wire so I can install nest thermostats. I have 3 zones, currently running 2 wires (r&w). There is an extra wire behind each thermostat, that runs down close to the boiler,…
new techy
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How do I get the Nest Thermostat to warm up my house prior to arrival

I have a Nest Thermostat and live in the UK. I have a radiator based heating system. When I leave the house, some time later the Nest realises this and sets my house to Away. From this point onwards the thermostat does not obey any of my schedules.…
Chris Terry
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How should my third-generation Nest thermostat be connected?

I have an old Honeywell Q674 thermostat with mercury in the house we just moved into. I'm attempting to upgrade to the nest 3rd generation thermostat, however the wiring labels are VERY different. I believe I have figured out…
user73751
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Will a 3rd Generation Nest thermostat correctly adjust the humidity base on outdoor conditions?

If I plug my whole house humidifier into a 3rd generation Nest, is it smart enough to track outdoor temperature and adjust indoor as needed to keep condensation off the inside of the windows?
David
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Why won't my Central Heating Boiler turn off with Nest thermostat installed?

I bought a second hand Nest Thermostat v1 (the European model with heatlink). I installed it and the Thermostat seems to work. The central heating boiler (Vaillant hrPRO CW3 VHR NL CW 3/3) seems to turn on but not off. Even though it's in Dutch,…
Bob Ortiz
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How to add C-wire from Laars mini-term

Folks, I am having problems connecting my Nest thermostat to a boiler. Given Laars Mini-term JVS series with Temperature Control PCB Module (pictured below) When I short Com call and Heat call wires the boiler starts working. Being a naive person…
bioffe
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Is Nest 3rd Gen Thermostat compatible as a replacement for Honeywell TH3110D1008

I have an Ultra-Zone EWC-ST-2E controller unit for my gas AC unit at home (heating and cooling). It is set for two zones. Where the first zone has to be on (heating or cooling) in order to enable to operation of the second zone. Both zones have…
KingsInnerSoul
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