Troubleshooting

If you are attempting to log into the Wizard and receive an error message that states Error: Login Error (Cannot Start Wizard). Try logging in again.

There could be one of two scenarios preventing you from accessing the wizard:

The system is in the process of updating

or:
The system is off-grid

In the event you receive this error message, but are confident that you want to start the Wizard, you have to option to select “click for more” to expand the Wizard and reveal the option to Force Launch the Wizard.

Note that launching the Wizard will, among other things, drop all loads if the system is in backup, stop all Powerwall charging and discharging, and prevent any ongoing updates from completing. Only select the Force Launch option if you are certain you wish to run the Wizard.

If you encounter persistent problems logging into the Wizard, contact Support for troubleshooting assistance.

Wifi
To configure the Wi-Fi connection, select the homeowner’s network.

If the network does not appear, tap on “RESCAN”.

You may be disconnected from the Gateway. If so, reconnect to the TEG Network, and refresh the page.

Once you have identified the homeowner’s network, enter the password, and tap on the blue arrow to connect.

If necessary, use WiFi range extenders.

A green dot and an IP address or network name along with a check mark appear next to a connection method when the Gateway connects to Tesla’s server via this method.

If the Gateway is connected and not currently using a particular method, the Wizard notes it is “Connected” along with a green dot and does not include an IP address or network name and does not display a checkmark by the connection method.

A yellow dot appears next to configured connections when the Gateway is not receiving an IP address.

If you have configured the Ethernet or WiFi but the Gateway is defaulting to the GSM connection, check to make sure the home owner's internet connection is properly working. Use another device on the Homeowner's network and test by connecting to a web page.

Contact support for more complex Wi-Fi setups.

Note that networks with a captive portal or hidden SSID are not supported.

Tap on “CHECK INTERNET CONNECTION” to verify the system is connected.

“SUCCESSFULLY CONNECTED!” appears in green to indicate the Gateway is connected.

If three or more error messages show over multiple tries, you may have a bad connection that requires troubleshooting.

Checking for Updates

Step 1

The Gateway may have automatically updated if it was left powered on for a period of time.

Manually tap on “CHECK FOR UPDATE” to ensure it has the latest build.

The system will check for, download, and then stage the update.

As the screen notes: “DO NOT POWER CYCLE!” the energy system during this process.

Do not touch the Powerwall enable switch
Do not open the circuit breaker
Do not navigate to other browser tabs or windows
Do not change to another WiFi network

Remain connected to the TEG WiFi network and monitor the progress of the update.

Once the update has been downloaded and staged, tap on “UPDATE”.

Step 2

Your device will disconnect from the TEG network.

After two minutes, make sure your device has reconnected to the TEG network and has not connected to any other networks in the area.

Refresh your browser. If the page does not reload, connect with http://TEG- followed by the last three characters of the Gateway Serial Number to re-enter the Commissioning Wizard.

Step 3

Installation Information

Enter the name of your company and telephone number.

If your company is not listed in the search, select "Not Listed" which will allow the company name to be manually typed.

Record the installation information.

Time Zone

Select the time zone of the installation.

It may have been auto-selected based on your browser's timezone.

Scan and Update Powerwalls

Step 1

When scanning for Powerwalls, the Gateway will check each Powerwall detected in the system to make sure its control units are identified and reporting properly. To avoid errors during this process, make sure to do the following:

Before starting
- Make sure all enable switches and circuit breakers for every Powerwall are closed before beginning the scan
- Make sure all communication wires and connectors are completely and securely terminated
- Make sure the terminating resistor is in place
During the process
- Do not toggle any Powerwall enable switches
- Do not modify AC, 12V, or communication cables
- Do not reset the Gateway
- Do not progress to any other page in the Commissioning Wizard

Step 2

Tap on “SCAN” to search for the Powerwall(s) and Contactor Controller on site.

The Powerwalls may perform an automatic firmware update.

Step 3

Green checkmarks denote that all the Powerwalls and the Contactor Controller are detected.

Grid Code

Step 1

Select the appropriate country, region, and utility for your site.

Once you select the applicable utility, you will be prompted to select the particular retailer and utility standard.

Your selections determine the future operation of the Powerwall and make particular features available to your customer.

Step 2

Since the functionality of Time-Based Control mode is region, utility, and retailer specific, double check you are inputting accurate information.

Check the box to confirm the selected grid code applies to this location.

You also have the option to select “RESET GRID CODE SELECTION”.

Tap on “CONTINUE”.

Registering Onsite-Power Generation

Step 1

You have the option to input various types of on-site power generation.

If applicable, select the solar inverter brand and the model number in the drop down menu.

Input the “PV Array DC Power Rating” in watts.

If you select “Not Listed”, manually type in the appropriate information.

Tap on “ADD SOLAR” to include information for additional on-site inverters

Step 2

If the site includes a generator or generators connected with an Automatic Transfer Switch downstream of the Gateway, tap on “ADD GENERATOR".

Select the “DISCONNECT TYPE” in the drop down menu.

And input information including the generator manufacturer, model, serial number, and sustained power in watts.

Tap on “CONTINUE” once you’ve entered each on-site power generation system.

Or, tap on “SKIP” if the site does not have any on-site power generation.

Registering Remote Energy Meters

Step 1

If remote meters are necessary, select “ADD Wi-Fi METER”.

Enter the Energy Meter short ID and the serial number.

Tap on “CONNECT”.

The TEG network may temporarily stop broadcasting while it connects to the energy meter. Reconnect to the TEG network to continue.

“SUCCESSFULLY CONNECTED” will appear in green when the meter pairs with the Gateway.

The meter will automatically update once paired.

Step 2

You also have the option to connect it to the Gateway Meter Comms port with an RS-485 energy meter harness. This method should only be used if there are too many obstructions between the remote meter and the Gateway to obtain a stable wireless connection.

Before hardwiring a meter, you must connect it via WiFi to check for updates. Once updated, delete the meter and establish the hardwired connection. Meters cannot be updated over RS-485.

You can add up to (2) wired meters.

Plug the harness in, and tap on "DETECT WIRED METERS".

Advanced Remote Meter Connections

If the remote meter is beyond the WiFi range of the Gateway, installers have the option of using an advanced configuration method, whereby the meter is added to the customer's home WiFi network and routed to the Gateway.

Troubleshooting

If the remote meter does not connect initially or if the CTs are not detected, you will need to power cycle the external meter.

Follow this procedure:

Delete the remote meter, unplug the remote Meter, and re-enter information to register meters. However, do not tap on “CONNECT”.

Plug the meter back in, and wait 10 seconds for the meter to power back up.

When the remote meter is powered, it will chime.

Then, press “CONNECT”.

Step 3

With the meters verified and updated, and the CTs detected, tap on “CONTINUE”

Configuring Current Transformers

Step 1

Use the drop down menus to select what each CT is measuring.

For Sync Meter 1, designate the CTs as either Site, Conductor, or None.

Step 2

For Sync Meter 2, designate the CTs as either Site, Solar, Solar (1CT x2), Conductor, or None.

When monitoring a solar inverter, use a single CT installed around only one leg of the inverter's AC output. Select "Solar 1CT x2" to allow the Gateway to calculate the total solar output of the inverter. This method reduces the number of CTs required to monitor solar generation.

Use CT 3 whenever possible, as the phase of this CT can be configured in the Wizard. This will make troubleshooting easier.

If you are recommissioning an older site that already has two Solar CTs installed, select "Solar" from the dropdown menu.

You also have the option to select "Conductor" for special situations. See Appendix F in the Powerwall 2 AC Installation Manual for more information.

Step 3

If an External meter is installed, designate the CTs as either Site, Solar, Solar (1CT x2), Conductor, Generator, or None.

If using 800A CTs, designate this using the drop down menu.

Step 4

The “FLIP” check box changes the polarity of the reading displayed on screen. Whenever possible, physically correct the orientation of CT. Only use the "Flip" check box when the CT is inaccessible.

Notice the “Power-Advanced” slider – Power will display the CT readings in watts. Advanced will show voltage, current, and power factor readings.

The "Advanced" slider can be used to verify that CTs are installed and configured correctly. Start by increasing the loads on the CT to at least 1kW. Power factor readings will not be accurate below this threshold.

Power factor is a is a unit-free value between -1 and 1. In a circuit feeding a load, power factor represents the ratio of real power to apparent power. If the Power Factor is less than one, it means that the real power is less than the apparent power, indicating that there is a load on the circuit that is consuming reactive power. Furthermore, the voltage and current waveforms are not in sync. Instead, they are out of phase and the apparent power is reduced.

If the Power Factor is less than one, it may indicate that CTs and the voltage harness are incorrectly wired. Ensure that the CTs on ports 1 & 4 are monitoring the same phase that the black lead of the voltage harness is landed on. Also ensure that CTs on ports 2 & 3 are monitoring the same phase as the red and blue leads of the harness.

Examining power factor for Powerwall CTs can help indicate if there is an installation error or a large inductive load in the circuit. Either scenario is not desirable and may require remediation.

Step 5

Take this opportunity to test that the CT orientation is correct by watching to see the power reading become more positive when turning a load ‘ON’, then decrease while turning it ‘OFF’. Repeat on each CT.

Note: Meters measure directional real power in watts.

Site or Conductor CTs will be positive when importing power from the grid, and negative when backfeeding solar energy.

Solar CTs will be positive when solar power is being generated. During the night, Solar CTs may read as negative if the inverter is consuming a small amount of power to stay awake.

Verify

Before completing the commissioning process, ensure the following is correct.

All CTs are configured.
Site, Conductor, and Solar CTs are displaying the proper polarity.
The watt readings displayed on screen match the home's utility meter and solar inverter production screen.
Power factor reading reports as 1.

Page updated

Report abuse