Troubleshooting a Gen 3 Wall Connector

Gen 3 Wall Connectors can be identified by the part number on the side label, which will be displayed as TPN: 1457768-##-#. Customers should take a photo of the side label for their records.

To troubleshoot your Gen 3 Wall Connector, you will need the Quickstart Guide, your smartphone and access to the Wall Connector.



Connecting a Wall Connector to Wi-Fi

Gen 3 Wall Connectors automatically receive firmware updates when connected to Wi-Fi. The first step for all troubleshooting is to ensure a Gen 3 Wall Connector is connected to local Wi-Fi so that it can download the most recent firmware for the best performance and latest features.


Step 1: Prompt Wall Connector to broadcast its Wi-Fi signal.

Press and hold the cable handle button for five seconds to prompt Wall Connector to broadcast it’s Wi-Fi signal.


Step 2: Ensure Wall Connector is broadcasting.

When energized or the cable handle button is held down for five seconds, the Wall Connector will display a glowing green LED and broadcast its own Wi-Fi access point for 15 minutes.


Step 3: Using your phone, find and select the Wall Connector's Wi-Fi network.

Find and select the Wall Connector’s Wi-Fi named TeslaWallConnector_XXXXXX to connect your phone, tablet or laptop to the Wall Connector.

If the Wall Connector network is not displayed, flip the circuit breaker for the Wall Connector from 'on' to 'off,' then back to 'on' again.


Step 4: Connect to the Wall Connector's Wi-Fi.

Enter the 12 digit password on the front of the Wall Connector Quick Start Guide to connect your phone or other device to the Wall Connector.


Step 5: Scan the QR code with your phone camera or enter the IP address below into any web browser.

While connected to the Wall Connector Wi- Fi, scan the above QR Code with your phone camera or enter IP address http://192.168.92.1 into your web browser to set up the Wall Connector, including connecting it to your local Wi-Fi.


Step 6: Connect to your Wi-Fi to complete the set up of your Wall Connector.

Now select your home Wi-Fi. You’ll be prompted to enter your password. Once connected to your home Wi-Fi, a confirmation will appear that your Wall Connector has been successfully set up and is ready to charge.

Note: Wall Connector supports 2.4 GHz Wi-Fi. Wall Connector does not currently support 5.0 GHz.

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Offline Firmware Updates

The best way to keep a Wall Connector up-to-date is to connect to local Wi-Fi. If this is not possible, firmware updates can be manually installed by following the steps below:

Step 1: Download the firmware file.

Save the file locally on the device you will be using to connect to the Wall Connector. We recommend using a laptop, smartphone or tablet. Download below:

Firmware 21.29.1


Step 2: Connect to the Wall Connector Wi-Fi access point.

Follow the standard commissioning instructions to connect to the Wall Connector Wi-Fi access point. Network name (SSID) and password (WPA2) details can be found on the Quickstart guide that came with the Wall Connector.

If the Quickstart guide is unavailable, email WallConnectorSupportNA@tesla.com with proof of purchase and serial number for assistance.


Step 3: Navigate to update page.

After connecting to the Wall Connector access point, use a web browser to navigate to http://192.168.92.1/update or http://192.168.92.1/service.


Step 4: Install the firmware file.

Select 'choose file' and then upload the Wall Connector firmware file. Click 'upload' and wait for up to one minute.


Step 5: Confirm the firmware update.

A message of 'success' will be displayed if the manual firmware update is successful. The Wall Connector may reboot.

If a 'failure' message appears, power cycle the Wall Connector by turning the circuit breaker off and back on again and then try uploading the firmware update again.

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Troubleshooting Tips

The table below displays common fault codes and their solutions. Use these codes to diagnose the issue with your Wall Connector.

Gen 3 Wall Connector Fault Codes

All red blink codes pause for one second, and then repeat.
Light Status Issue Solution
No lights Power supply issue, charging disabled Verify that the power supply is turned on. If the issue persists, have an electrician remove the Wall Connector from the wirebox and confirm that voltage is present at the terminal block using a multimeter. Record voltage readings:
  1. Line 1 to Line 2
  2. Line 1 to Ground
  3. Line 2 to Ground
Solid red Internal fault, charging disabled Turn the circuit breaker off, wait 5 seconds, and turn it back on. If solid red light remains, document part number and serial number, then contact Tesla.
One red blink

Ground fault circuit interruption due to unsafe current path, charging disabled.

Inspect the handle, cable, Wall Connector and vehicle charge port for damage or signs of water ingress. Have an electrician check that earth ground is not directly connected to a conductor wire in the branch circuit.

Two red blinks

Ground assurance fault, high ground resistance detected, charging disabled.

Verify that the Wall Connector is properly grounded. The Ground connection must be bonded in the upstream power supply for proper operation. Check all physical connections, including the wirebox terminals, electrical panel(s), and junction boxes. In residential power supplies, check the bond between Ground and neutral at the main panel. If connected to a step- down transformer, contact the transformer's manufacturer for direction on how to bond the ground connection.

Three red blinks

High temperature detected; charging limited or disabled

Connect Wall Connector to Wi-Fi so that firmware can update to most recent version.

Check the faceplate and cable handle for excessive warmth. Have an electrician remove the Wall Connector from the wirebox and verify that the conductors used are sized correctly and that the terminal block is torqued to specification.

Three red blinks, with green streaming

High temperature detected; charging is limited

Charging amperage has been reduced due to high temperatures.

Connect Wall Connector to Wi-Fi so that firmware can update to most recent version.

Four red blinks

Internet connection lost, online features disabled

Check for objects that could interfere with the area's Wi-Fi signal strength. Confirm that the local Wi-Fi router is operational. If the Wi-Fi password was changed recently, follow the commissioning process on your mobile device to update the Wi-Fi settings.

Five red blinks

Power-sharing communication issue, charging reduced

Check for objects that could interfere with the area's Wi-Fi signal strength. Follow the commissioning process on your mobile device to re-link the Wall Connectors for power-sharing.

Six red blinks

Overvoltage or poor grid quality detected, charging disabled

Verify that the power supply is nominal 200-240 volts. If the issue persists, have an electrician remove the Wall Connector from the wirebox and confirm that voltage readings are as expected at the terminal block using a multimeter. Record voltage readings:

  1. Line 1 to Line 2
  2. Line 1 to Ground
  3. Line 2 to Ground
Seven red blinks

Vehicle overcurrent detected

Reduce the vehicle's charge current setting. If the issue persists and the attached vehicle is manufactured by Tesla, record the vehicle's VIN and approximate time of the fault and contact Tesla. If the vehicle is not manufactured by Tesla, contact the vehicle's manufacturer.

Learn more about Wall Connector installations or how to replace a Wall Connector.

If you have additional questions, please contact Customer Support.

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Additional Resources


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