Troubleshooting - Tesla Powerwall 2 AC Installation Manual

Troubleshooting

If Powerwall is not working correctly, perform the following steps:
•
Check the status of the LED on the right side of Powerwall.
The LED indicates status as follows:
LED State
On (solid)
On (flashing)
On (pulsing)
Off
• If it is not possible to communicate with the Backup Gateway through the My Tesla
app, ensure that the home Internet connection is working.
• Ensure that Powerwall is correctly connected to the Backup Gateway, based on the
wiring diagrams above and site design information.
WARNING: Before opening the Powerwall wiring compartment, make sure to
switch off the AC breakers for Powerwall and the Backup Gateway, switch off the AC
disconnect (if applicable), and switch off Powerwall.
WARNING: Switching off Powerwall disengages the Enable line but does not
disconnect AC voltage. Voltage may be present on the AC connection leads unless the
Backup Gateway, any associated circuit breakers, and the AC disconnect (if applicable)
are switched off.
•
If a brownout or blackout is experienced during backup operation: reduce the loads
and check that the breakers have not opened.
• If Powerwall does not operate and the ambient temperature is high, increase ventilation
if needed.
• If the Backup Gateway and Powerwall are both unresponsive:
1. Turn off Powerwall by setting its On/Off switch to the OFF position.
2. Turn off the AC breakers for the system (Backup Gateway and Powerwall).
3. Wait at least one minute.
4. Turn the AC breakers back on.
5. Turn on Powerwall.
50
Indication
Powerwall enabled/Communication with Backup Gateway;
Voltage may be present on Powerwall AC connectors
Powerwall enabled/No communication with Backup Gateway;
Voltage may be present on Powerwall AC connectors
Powerwall enabled and charging or discharging
Rate of pulsing proportional to power flow
Powerwall not enabled or switched off
Powerwall Installation Manual