Questions tagged [nest]
The Nest is a programmable, internet-enabled thermostat
222
questions
0
votes
1
answer
80
views
How does a Google Nest power connector work?
I am looking at the installation instructions and they all show that the power connector goes back to the furnace/AC control panelIf this is installed just to make sure the thermostat gets enough ...
- 3,400
0
votes
0
answers
24
views
Nest Doorbell 2nd generation Interior chime buzzing not ringing
Today I got a nest doorbell 2nd generation and installed it. Doorbell chime is working fine but interior chime ringing is not working it’s buzzing when you press the door bell.
Here is the screenshot ...
- 1
0
votes
0
answers
40
views
Adding smart thermostat (nest) to burnham series 2 boiler
I’m trying to add a nest thermostat to my burnham series 2 boiler with two zones. My original thermostat has a red and white wire going to W and R with a jumper from R to RC. See first photo.
Where ...
- 1
0
votes
0
answers
11
views
Wiring Question When attempting to Replace Honeywell with a Nest Thermostat
I am trying to determine which Nest will work to replace honeywell device. I am a bit confused with the current wires. At the moment I have; G=Green Wire, R=Red Wire, O= Blue Wire, Y=Yellow Wire. It ...
- 1
1
vote
2
answers
36
views
Nest thermostat and no C wire at my boiler
so I bought a nest thermostat and it keeps running through the AAA batteries, recommending that I use a C wire, though there's just 2 coming out of the wall (red and white). I got C wire/power adapter ...
1
vote
1
answer
19
views
Trane XR95 No power (2 volts) to Thermostat
Trane XR95 ~2.2V at Thermostat
Woke up this morning to a cold house and a thermostat message saying “no power to the Red wire.” Measured R and C using a multimeter and it reads ~2.2 Volts. Took the ...
- 11
1
vote
1
answer
34
views
Oil Hydro Air & Heat Pump Efficiency
We recently moved into a 5 bedroom home in central Massachusetts with the following system that was installed in 2006:
3 zone hydro-air heat with Veissman Vitorond 100 boiler and Riello 40-F5 burner. ...
- 113
0
votes
0
answers
25
views
Installing Nest Thermostat 3rd Gen with Power Adapter to Honeywell HZ311 Zone Controller
I’m attempting to hook up my Nest 3rd Gen thermostat to my zone controller and everything appeared to be working correctly.
However, after turning the system back on and cycling through heat and cold, ...
- 101
5
votes
3
answers
1k
views
Heating and Cooling controlled via one thermostat
I currently have two thermostats. 1 for heating and 1 for cooling. The heating one stopped working recently and now that winter is coming, I am interested to combine them into one. Here is what I have ...
- 51
0
votes
1
answer
63
views
Existing doorbell has only A1 and A2 wires -- want to replace with different smart doorbell
I'm replacing the doorbell in the house I just moved into. Currently, there is some Aiphone setup (never heard of this). What I do know is that the current doorbell camera has two wires (A1 and A2) ...
- 75
1
vote
1
answer
202
views
Nest thermostat tripping breaker
I have had the nest for about 3 years, it's been working fine. Over the past month the breaker that feeds the nest and the furnace has been tripping although the heat hasn't been used for about 4 ...
- 11
0
votes
1
answer
48
views
Can’t find C Terminal Burnham Series ES2
Try to install Nest thermostat 3rd gen. I have 3 wires coming from the furnace: R, W, and G. I connected them to Nest pretty simple there, but low battery, Wi-Fi not working on a daily basis. There is ...
- 1
2
votes
1
answer
289
views
Mechanical doorbells (connected to NEST doorbell) won't stop moving
I have two Nest doorbells that I view through Google Home. Both are connected to mechanical doorbell ringers and both of those ringers are constantly in motion. See the pictures attached. The small ...
- 21
0
votes
1
answer
93
views
Re-wire Aprilaire to non-communication/legacy for Nest
I currently have an Aprilaire unit 8840. I know the system is proprietary, but I also believe I can rewire the control box and re-wire it as non-communicating thermostat and use a Nest instead. I've ...
- 3
2
votes
0
answers
57
views
Thermostat connection and NEST compatibility question
We have this thermostat. It's no longer allowing the temperature to be adjusted. It will control the furnace on/off, it just won't allow the temperature to be adjusted. Date & time are still able ...
- 21
1
vote
0
answers
67
views
How do I go about wiring 3 Nests to a boiler with no C wire
I’ve seen a version of this question in a few places but nothing really fits.
I have a boiler and hot water baseboards. It’s a three zone system and I installed 3 Nests but there is not C wire and no ...
- 11
0
votes
2
answers
240
views
What is correct Nest setting when adding my own C-wire? (i.e. without using Nest Power Adapter)
I am adding a Nest (not Nest Thermostat E or Nest Learning Thermostat) to a 2-wire boiler system. Fortunately, the existing thermostat wire has free conductors. So I connected a 3rd wire from the C ...
- 103
0
votes
2
answers
209
views
Furnace not working after installing nest thermostat [closed]
I installed nest thermostat without turning off power to furnace. Blower kicks on but not furnace. Is there anything I can do?
0
votes
1
answer
730
views
How do I add a Google Nest Thermostat upstairs when I already have one downstairs?
I currently have a Google Nest Thermostat downstairs, and it works fine. I want to add a second thermostat upstairs and then have it 'learn' that I sleep upstairs so it should adjust the temperature ...
- 387
2
votes
3
answers
1k
views
How to add Thermostat C Wire to Furnace TH/TR and Transformer
I am trying to figure out the proper wiring for a C wire for my thermostat.
My 24v transformer and the current thermostat wiring at the furnace are shown in the pictures below.
Can I wire a thermostat ...
2
votes
0
answers
129
views
Thermostat two-wire: heat-only with R+Rh and O/B
Updated Dec 1, 2022 (Previously I wrongly believed that the boiler is connected to a heat pump, whereas it is actually connected to a temperature sensor installed under the heat pump)
I want to ...
2
votes
1
answer
312
views
Help Replacing White Rodgers 1F866-344 Thermostat with Nest
I have a dual zoned Heat Pump system in my house. Each zone is controlled by a White Rodgers 1F866-344 Thermostat. I took a picture of the connections (there are 8 wires in use) and would like to ...
1
vote
2
answers
160
views
Help identify common wire on furnace
I need to install a nest power connector for my furnace (only equipment present) and am trying to identify the c or common wire. Pic of board and transformer (?) below. Thank you
Edit: better pics
...
- 113
3
votes
1
answer
152
views
Google Nest Causes Furnace to Need Reset
After installing a Google Nest, my furnace heats until it reaches the correct temperature, but if it sits, the controller light turns off and I need to turn the breaker off and then back on in order ...
0
votes
0
answers
57
views
How is this working? There is no W,Y,G wires?
Single stage gas furnace and ac w Honeywell thermostat w no W,Y, nor G. How would this work? I’m trying to convert to nest.
- 1
1
vote
2
answers
1k
views
Replacing doorbell transformer attached to electrical panel
I've been pulling my hair out trying to find my current doorbell transformer in order to upgrade it for a nest doorbell. I believe to have found it attached to my electrical panel after taking the ...
-1
votes
1
answer
63
views
HVAC wont turn on heat
I recently installed NEST thermostat and the cooling aspect was Ok, however now when i turn on the heat, the thermostat says its heating however there is still cold air coming thru the vents. After ...
- 1
1
vote
2
answers
964
views
I have an old boiler with no "C" terminal for wifi thermostat
I have a nest thermostat that need a C cable. I have a Vaillant boiler serial number GA92-120 SP that doesn't have a C connector.
The boiler has only two wires connected from the thermostat to the ...
- 11
0
votes
2
answers
435
views
Connecting “C” (common) wire for Nest thermostats
I am planning to get two Nest Thermostats for my 2 zone HVAC system. It looks like blue C wire is already there for both thermostats, but not connected (existing thermostats run on batteries). I ...
- 9
0
votes
1
answer
539
views
Install C wire on dual zone hvac board for Nest - no c wire terminal
I am trying to setup a Nest Thermostat and I am getting a few errors when trying to set it up. I am getting errors that no wires are detected on the Nest even though the old thermostat is detecting ...
- 3
0
votes
0
answers
142
views
I'm installing a nest thermostat. The wires at the base are R G Y W
On my 24v transformer there is a C POST. I have wired the nest thermostat with the 4 wires R Y W G. Nest says the termostat needs a c wire,Can I just run a wire from the C post on the transformer to ...
- 1
2
votes
1
answer
200
views
Could my Nest thermostat be reducing my AC cooling?
I have a Nest thermostat wired up to a furnace and AC that was installed 5 years ago (a Byrant 987m furnace, Byrant 126b AC).
Both the AC and furnace work, but when the AC is running, air barely blows ...
- 145
0
votes
1
answer
69
views
Replace Honeywell TH9320WF5003 with nest 3rd gen
Need help with identifying wires on Honeywell TH9320WF5003, using Nest compatibility checker to replace with Nest gen 3
0
votes
2
answers
618
views
Nest Installation Wiring [duplicate]
Hello trying to wire a Google Nest Learning Thermostat and my old one used only VG and V+ and now I need to know what I should hook it to.Also I have 3 others wires that weren't hooked to anything in ...
- 1
0
votes
0
answers
84
views
No C wire for Nest thermostat but unused C terminal on furnace
I know this question is similar to others I’m just hoping for a short answer. It’s a small house and the thermostat and furnace might be twenty feet apart. The control board on the furnace has an ...
0
votes
0
answers
98
views
Nest C-wire issues with old boiler, xfmr, and 8124 aquastat
I have my C & Rc connected to my old 28vac xfmr and my W & Rh directly to T & T on aquastat. I added the Rc so the Nest would stay active in Summer when boiler is turned off. This setup ...
- 79
1
vote
2
answers
2k
views
Can I use this unused blue wire as my C wire for my new Nest thermostat?
I am a bit confused with my furnace wires. I did some research and watched a bunch of YouTube videos on how to install the Nest thermostat. I currently have a normal digital Honeywell thermostat.
I ...
- 21
0
votes
0
answers
127
views
Nest thermostat E keeps running
I have a nest thermostat E for a year or so, but recently it feels like it keeps running for a a prolonged time when the vent is not venting hot air anymore, worth to mention is that, it DOES bring ...
- 59
2
votes
1
answer
282
views
Installing Nest Smoke Alarm against capped wires
We moved in to a new home and the prior homeowner capped the old smoke alarm wires and replaced the old wired alarm with a battery unit that wasn’t wired up at all.
The nest smoke alarm has a 120V ...
- 123
3
votes
2
answers
4k
views
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 ...
- 499
0
votes
0
answers
1k
views
Adding New External 24v Transformer to Nest with separate Rh and Rc wires
I have separate heat and cooling systems with wiring to Y, W, G, Rh and Rc (see below). For the external transformer, where do I attach the two wires. C and ?
- 1
2
votes
0
answers
426
views
How to wire a 2 stage heat pump with gas furnace
I bought a new house last year and this is the first winter I've been in it. It have a gas furnace that we've been using as the only heat source. The other day, I went to clean the condensor coils and ...
- 21
1
vote
1
answer
88
views
Would it be dangerous to tap an existing flame sensor circuit to create a common connection for my thermostat?
I'm considering using this answer to connect a common wire to my thermostat. I have the exact same setup, and have verified with my multimiter that the red T terminal outside F terminal beeps, while ...
- 125
0
votes
1
answer
72
views
Thermostat replacement, no c wire
I have an almost 20 year old Taco thermostat that I am trying to replace with a Nest thermostat for a forced hot water heating system.
The Nest requires a W, R, and common wire, current only uses W ...
- 1
1
vote
0
answers
279
views
Anyone connect the MasterStat Model 110423-2 three lines to Google Nest thermostat?
I have read the poster here:
Controlling 110v swamp cooler using Nest thermostat
about how to control the swamp cooler using the nest. However, I don't have reputation to post comments to that post ...
- 11
-1
votes
1
answer
546
views
Nest thermostat issue - only blows hot air if heat is on and fan is forced on. No air circulation with heat only
A few months ago I installed a nest thermostat and everything worked fine. I ended up giving that one away and installed another one A few days ago. It worked for one day and then it stopped heating. ...
-1
votes
1
answer
75
views
C wire contact missing at boiler
I have a heat only system. My previous thermostat only use the red and white wire. The blue C wire was coiled up and unused. I purchased a new nest thermostat. Everything is wired fine at the ...
- 1
0
votes
0
answers
34
views
I have a Nest 3rd generation thermostat and it wont turn on the furnace
I have a Nest 3rd generation thermostat and it wont automatically turn on my furnace i have to the nest to off then turn back to On to get the furnace to start. It was running fine for about 2 months ...
0
votes
0
answers
780
views
Nest thermostat. No fan with heating
Here is how my Nest behaves with 3 different scenarios. My question is how can I get my fan to turn on automatically with my heat. Is it possible i have it wired incorrectly? Attached is my wiring ...
- 11
-1
votes
1
answer
2k
views
Where should I connect the E wire on my Nest Thermostat?
I am trying to install a Nest thermostat and I have (R, O/B, Y, G, E, W2, C) wires in my old thermostat, but the Nest only has (Y, C, W, G, R, *OB). So where do I connect the E wire if there isn’t a ...
- 1