Powerwall 3 Not Reporting Values After Install

After an installation has been completed, Powerwall 3 stops reporting values. This issue is caused by Powerwall 3 being unable to connect to Wi-Fi or cellular service.

Steps to Resolve Remotely

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Note
The following steps are applicable for Powerwall 3 systems with either Backup Gateway 2 or Backup Switch. Systems with Gateway 3 require on-site support as described in Steps to Resolve On-Site.
  1. Contact the customer and ask them to turn the Powerwall 3 switch on the left side of the unit OFF.
  2. Direct the customer to wait at least two hours before taking any additional action.
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    Note
    If the system includes Backup Gateway 2, the Tesla Asset Controller (TACO) will still be powered ON (indicated by TACO LEDs) after the Powerwall 3 is switched off. Waiting at least two hours ensures it is safe for the customer to proceed.
  3. If the system includes a Backup Gateway 2, ask the customer to power cycle the system:
    1. Locate the home’s main breaker (it may be inside Backup Gateway 2).
    2. Turn the breaker OFF.
    3. Wait 30 seconds, then turn the breaker back ON.
  4. Ask the customer to turn the Powerwall 3 switch back on after two hours.
  5. Confirm the issue is no longer present.
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    Note
    If the issue is still present, contact Tesla Installer Support for additional support.
  6. Update the Powerwall firmware to the latest available version.

Steps to Resolve On-Site

  1. Turn the Powerwall 3 switch on the left side of the unit OFF.
  2. Turn the Powerwall 3 breaker OFF.
  3. Using a T20 Torx driver, unscrew and remove the (6X) fasteners and the Powerwall 3 glass front cover.
  4. Disconnect the Tesla Asset Controller (TACO) low voltage harness (1).
  5. Disconnect the Communication connector (2).
  6. Confirm both LEDs on the TACO turn OFF.
  7. Reconnect both the Communication connector and the TACO low voltage harness.
  8. Confirm both LEDs on the TACO turn back ON.
  9. Turn the Powerwall 3 breaker ON.
  10. Turn the Powerwall 3 switch ON.
  11. Reboot the Powerwall system:
    1. Log in to the Device Setup interface in Tesla One, then connect to the Leader Powerwall 3.
    2. Perform a software update if one is available.