Google Nest Power Connector - C Wire Adapter for Smart Thermostats - 3.98in Accessory
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Google Nest Power Connector - C Wire Adapter for Smart Thermostats - 3.98in Accessory

4.1/5
Product ID: 322296003
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Details

  • Brand
    Google
  • Model Name
    GA02493-US
  • Controller Type
    Android iOS or
  • Color
    Snow
  • Temperature Control Type
    smart/remote
24V Power Source
🌐Wi-Fi Connectivity
📱Smart Control

Description

🔌 Power Up Your Home's Intelligence!

  • COMPACT DESIGN - Sleek and unobtrusive, fits anywhere.
  • SMART HOME READY - Integrates effortlessly with your Nest ecosystem.
  • RELIABLE PERFORMANCE - Ensures consistent power for your smart thermostat.
  • SEAMLESS INSTALLATION - No wiring or drilling required—just plug and play!
  • UNIVERSAL COMPATIBILITY - Works with various heating and cooling systems.

The Google Nest Power Connector is a versatile C wire adapter designed for smart thermostats, ensuring seamless connectivity and reliable performance for various HVAC systems. With easy installation and universal compatibility, it enhances your smart home experience without the hassle of complex wiring.

Small manufacture image 1

Specifications

BrandGoogle
Model NameGA02493-US
Controller TypeAndroid, iOS, or Web
ColorSnow
Temperature Control Typesmart/remote
Connectivity TechnologyWi-Fi
Included ComponentsNest Power Connector, Wire connectors, Wire labels, Sticky pad, Installation Guide, Safety warranty and regulatory guide
Power SourceHVAC Powered
Voltage24 Volts (AC)
MaterialPlastic
Display Typecolor LCD or LED
Finish TypeMatte Plastic
Control MethodTouch
Connectivity ProtocolWi-Fi
Mounting TypeFurnace/Air Handler/Zone Controller Mount
StyleConnector
BacklightYes
Specification MetGeneral Industry Standards
UPC193575020150
Global Trade Identification Number00193575020150
ManufacturerGoogle
Part NumberGA02493-US
Item Weight3.84 ounces
Product Dimensions0.57 x 2.12 x 2.87 inches
Item model numberGA02493-US
Size1.1 x 3.03 x 3.98
FinishMatte Plastic
Item Package Quantity1
Batteries Included?No
Batteries Required?No
Warranty Description1 year manufacturer.

Have a Question? See What Others Asked

If you have multiple thermostats (3 zones), do I need one for each zone?
Will the adapter give you control of the fan functions, so you can turn on just the fan with out running the heat or the air conditioner
I installed the device and the furnace runs but the ignition will not fully kick in so I only get cold air and fan won’t stop Running?
Does this work with a dual transformer system with 2 r wires? (oil burner + ac)

Reviews

4.1

All from verified purchases

D**E

Clever way to make 2 wire thermostat cable reliably power Nest thermostats

Of the 3 thermostats I replaced with google Nest units in my house, the 2nd floor one I could not pull out and replace the old 2-wire R/W cable. (Two 1st floor thermostat locations I replaced with 3-wire cable). This Power Connector cleverly solves the problem. Attached near boiler controller in basement, it converst the W function of a 2 wire to a C (common) function. That ensures 24V continuous power to keep thermostat continuously up and running. The W function is done by superimposing a signal whereby the Power Connnector implements the R/W relay closure and opening.Be sure that your controller for your heating system has a "C" Terminal- many older (pre 2000) systems don't. If it does not, likely its transformer may be under powered for operting smart thermostats. There are electronics solutions available to augement older controllers to support smart thermostats. (I bought one made by Argo).

M**S

A Nestessity if you can’t C a cable

See what I did there?…Having bought a Nest thermostat (which installed easily and worked great), I found the installed battery failed after about a year. Replacing the battery in the Nest Learning Thermostat is *not* easy and requires dismantling the thermostat body. When the battery failed, it lost the WiFi connection on account of no power. My A/C guy noted that the circuit doesn’t have a C wire. This wire provides power to the thermostat and without it the thermostat has to rely entirely on the batteries. He offered to run a C wire from the furnace control panel, but that would require a lot of work and a substantial amount of money.This power connector is a much better way. It easily installs at the furnace control panel and basically allows the other wires to provide what musicians call in a microphone “phantom power” to the thermostat.Problem solved. For way less than running a cable through the walls.

J**.

Solves the missing c wire - specific to the Nest thermostat, not a universal solution

Installed a Nest thermostat on my daughter’s condo and found out she only had two wires, red and white with no possibility of running a real C wire due to plaster walls. Confirmed that the furnace had a C wire (critical) and then ordered this dongle. My application was a heat only furnace so the wiring was fairly simple.I strongly recommend that you get three of the wagu type snap-on UL approved wiring connectors unless you have screw terminations to attach to. There are two of the snap on connectors in the box but you will need three more for the furnace side . Trust me - have the connectors handy and installing this device is easy, I tried to use twist on wire nuts but the nuts would no stay on.You need to “tell” the nest thermostat that this adapter was installed during the programming phase on your phone or tablet. Do that slowly because if you miss the check box that says this device was installed the thermostat will not work and the only way to fix it is to delete the thermostat and install it as a new device.Note - This device is specifically designed for the nest thermostat. It will not work as a workaround to add a missing C wire to other thermostat brands.

A**H

Did not add a common path

I recently installed a nest learning thermostat. I did not have a C wire but the nest nevertheless worked fine. I read online that it's a matter of time until getting the battery low error so I thought I'd be proactive and add a charging path for the thermostat.Installation was very simple, opened the HVAC panel, connected the R and Y thermostat wires to this power connector and the R and Y from the connector back to the HVAC board. Additionally, I connected the C wire coming from the connector to the C slot on the board. I used a multimeter to make sure that indeed is a C wire which was pretty obvious as it was coming from secondary of the 110/24 transformer.The annoying part is the nest learning will not give you any indication if the power connector is detected and working or not. This should be added considering this is from Google and not a third-party and the thermostat can get updates. So I had to check the power in the thermostat's settings. I was getting Iin=40 mA with AC OFF and Iin=20 mA when AC ON which is basically the same as having no C connection. To triple check, I then removed the connector and repurposed my G (fan) wire to C slot on the thermostat and the same C slot I used before with the connector at HVAC. Checked my thermostat settings then and I was getting Iin=200 mA which showed the C connection was actually working. Unfortunately, this isn't a feasible solution for me since my AC doesn't automatically turn the fan ON without G connection.I could not find anywhere how this connector is supposed to work but my assumption is it internally switches between R-Y path to R-C path when R-Y is not needed so the thermostat doesn't have to draw so little current from R-Y without making the AC ON or malfunctioning. However this is supposed to work, it obviously didn't for me.I see some people had luck with this item but I am still giving it one star since not only it didn't work for me, the device has no status indicator to tell if it is defective or simply not working with a certain system. They could add some small LEDs or at least they could show on the thermostat or in the app that this is detected and if it is working/not working.

Common Questions

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

Google Nest Power Connector C Wire Adapter For Smart Thermostats | Desertcart Romania