Troubleshooting A Tesla Powerwall Green Light Flashing

Troubleshooting A Tesla Powerwall Green Light Flashing

Purchasing your Tesla Powerwall must have been an exciting experience. But that excitement can quickly turn to worry when unexpected things happen. When a green light keeps flashing on your Tesla Powerwall, a bit of troubleshooting is required to find out what’s going on.

A flashing green light on a Tesla Powerwall indicates that the Powerwall is enabled but that there is no communication with the Gateway. To troubleshoot this issue, you’ll need to check your internet connection, fix any issues there, and then restart your Powerwall.

Keep on reading for step-by-step information about how to troubleshoot your Tesla Powerwall. We will cover all of the troubleshooting steps, as well as situations that indicate that you’ll need to contact a Tesla technician.

» MORE: When Will The Tesla Powerwall 3 Be Released?

Understand Why the Green Light is Flashing

When a green light flashes on your Tesla Powerwall, this does not necessarily mean that there is a problem within your Powerwall. It means that, though your Powerwall may be working correctly, something is stopping it from communicating with the Gateway.

For those who are not aware, the Gateway is essentially the control center that manages the following:

  • Energy management
  • Time-based control
  • Backup functions
  • Solar self-consumption monitoring

The Gateway and the Powerwall must communicate effectively for the Powerwall to work as designed. Now that you have a general understanding of what the flashing green light means, let’s get into how to troubleshoot this issue.

» MORE: Troubleshooting A Tesla Powerwall Noise

Check Your Internet Connection

There are several steps that you need to take in order to effectively troubleshoot your Tesla Powerwall. The first is to check your home internet connection. The Powerwall is not able to connect with the Gateway unless there is a stable internet connection.

Check for An Outage in Your Area

When there is an internet outage in your area, this could cause your Tesla Powerwall not to be able to connect to the Gateway.

A simple internet search for internet outages in your zip code will let you know of any outages. Alternatively, you can call your internet provider to check on any outages. If there is an outage, you will have to wait until the issue causing the outage is resolved. Once the internet is restored, you may find that the problem with your Tesla Powerwall is resolved.

Test Your Internet Speed

Checking the status of your internet connection is crucial. You can do this by trying to access the internet on a device like a PC or a laptop. If you are able to access the internet, you can test the strength of the connection by using a reliable speed test. The results of the speed test will tell you the download speed, upload speed, and ping speed.

If the ping speed is less than 100, your internet connection is average. If it is higher than that, there is likely an issue with your internet.

Fix Your Internet

Try the following steps if your internet connection is unstable:

  • Disconnect your router and/ or modem. This can be done by disconnecting the power source on either device.
  • Wait for a minimum of 30 seconds.
  • Reconnect the power cords.

If you don’t want to fiddle around with cords, and your router has an ON/OFF switch, you can restart it by powering it off, waiting 30 seconds, and then powering it back on. After restarting your router/modem, you should rerun any internet speed tests that you initially ran to see if there has been an improvement.

Going through these steps will clear your cache on each of these devices and remedy many internet connection issues. But keep in mind that it will not fix all internet problems.

NOTE: If your internet connection remains slow or faulty, the next step is to contact your internet provider to see if they can fix your internet connection. They may need to send a technician out to your home.

» MORE: The Tesla Solar Gateway Explained

Restart Your Tesla Powerwall

Once your internet problem is resolved, it is time to restart your Tesla Powerwall to see if it works. To do so, take the following steps:

  • Turn the Powerwall off. Power down the device by flipping its switch to the OFF position.
  • Turn off the AC breakers. Make sure that you do this for both the Gateway and the Powerwall.
  • Wait for a minimum of 30 seconds.
  • Turn the AC breakers back on.
  • Turn the Powerwall back on.

For the best results, complete these steps in this particular order.

If the internet connectivity problem is fixed, your Powerwall should connect to the Gateway without an issue. The green light will be solid if the problem is resolved. If this does not work, there could be another problem.

Connect to the Gateway for Diagnostic Information

Connecting to the Gateway may be helpful for troubleshooting this flashing light issue because it allows you to see the Powerwall’s settings and status. If there is some sort of disconnect, you will be able to see that on this application. This can be done conveniently on your smartphone, PC, or laptop.

Log in to the Gateway’s WIFI Network (using the Tesla mobile app)

The following steps will tell you how to access the Gateway Wi-Fi network

  • Locate the Gateway serial number:
    • If you have a Gateway 1: You can find the serial number on the home screen in the Tesla app (at the bottom).
    • If you have a Gateway 2: You can find the serial number in the Tesla app. The password is on the sticker behind the cover of the Powerwall unit.
  • Connect to the Wi-Fi network, which is the network that starts with the letters TEG. Use the password that you found in the previous step.
  • Open a web browser and type “” in the address bar.
  • Press Enter. You will see a security warning the first time that you do this but continue with the process by pressing “accept.” 
  • After the web page loads, click on the “Login” button.
    • Choose the “Customer” login type.
    • Enter the email that you used to set up your Tesla account
    • The password is the last five characters of your Gateway password.

Update Your Gateway Settings

To update the network settings, you should select “Network” and then “Wi-Fi.” Then you can choose your home network and enter the password. After a couple of minutes, go back to your settings on your smartphone, PC, or laptop, and select the Gateway’s Wi-Fi network.

After all of the steps above are complete, you will be able to see the status of your Powerwall.

If the app indicates that there is a problem with your Powerwall, you can then relay that information to a Tesla support representative.

» MORE: Tesla Powerwall Voltage Explained

Get Professional Help with the Gateway

If the green light is still flashing after you’ve fixed the internet and restarted the Powerwall, you will need to reach out for professional help. Before you contact Tesla support, do the following:

  • Turn the Powerwall off by flipping the power switch to the OFF position.
  • Turn off the AC breakers for both the Gateway and Powerwall.

You can get help more quickly if you have the following information available to the technical support representative:

  • The name of the owner.
  • Good contact information for yourself.
  • The serial numbers for the Gateway and the Powerwall.

Once you let them know about the flashing green light issue, they will attempt to remedy the issue remotely.

Tesla is known for being able to fix technical issues quickly via remote interference. However, there may be cases where you need a technician to come out and fix the problem.

Final Thoughts

Now you know all of the steps that you can take to troubleshoot a green flashing light on your Tesla Powerwall. To recap, the main issue is probably an internet connectivity issue. Restarting the Powerwall after fixing the internet issue will likely fix your issue.

Solar Discounts:


The articles here on are created by Greg, a Tesla vehicle and Tesla solar expert with nearly half a decade of hands-on experience. The information on this site is fact-checked and tested in-person to ensure the best possible level of accuracy.

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