2021 TESLA MODEL 3 Owner´s Manual

Only one Wall Connector can be set to a master configuration. All other linked Wall Connectors must be set to
paired (position F). Set one of the Wall Connectors to Master and all others to paired.
(CC_a022)
Unable to charge - More than 1 primary unit
Ensure only 1 Wall Connector is set as primary
What this alert means:
Circuit Breaker Sharing Network: Need one (and only one) Wall Connector set to Master.
What to do:
Only one Wall Connector can be set to a master configuration. All other linked Wall Connectors must be set to
paired (position F). Set one of the Wall Connectors to Master and all others to paired.
(CC_a023)
Unable to charge - Too many Wall Connectors
Ensure no more than 3 units paired with primary
What this alert means:
Circuit Breaker Sharing Network: More than three Wall Connectors are paired with the same Master.
What to do:
One or more paired Wall Connectors must be moved to a different circuit and disconnected (unpaired) from this
Circuit Breaker Sharing Network.
(CC_a024)
Unable to charge - Low Wall Connector current
Primary unit current setting must be increased
What this alert means:
Incorrect rotary switch setting.
What to do:
Make sure there is no power to the Wall Connector. Remove the face plate and adjust the rotary switch to a valid
operating current setting. The correlation between switch setting and current is printed on the inside of the Wall
Connector. You can also refer to the Set the Operating Current section in the Wall Connector Installation Manual. If
the Wall Connector is set up for load sharing (paired with other Wall Connectors), the rotary switch of the master
unit must be set to an operating current setting that allows each paired Wall Connector to receive at least 6A of
charge current. Example: Three Wall Connectors are paired for load sharing. The master unit needs to be set to a
current of at least 3 * 6A = 18A or greater.
(CC_a025)
Unable to charge - Wall Connector issue
Wall Connector needs service
What this alert means:
Wall Connector hardware issue. Possible issues include:
1.
Contactor not working
2.
Self-test of internal ground fault monitoring circuit failed
Troubleshooting Alerts
215Consumer Information

3. Thermal sensor disconnected4.
Other hardware component issues
What to do:
An internal issue was detected by the Wall Connector.
1.
Try charging again by disconnecting the Wall Connector from the vehicle and reconnecting.
2.
If the issue persists, turn OFF the circuit breaker for the Wall Connector, wait 10 seconds, and turn the circuit
breaker ON again. Then try reconnecting the Wall Connector to the vehicle.
3.
If the issue persists, check for loose connections.
a.
Make sure there is no power to the Wall Connector.
b.
Remove the face plate and inspect the wiring terminals for any loose connections.
c.
Contact an electrician if necessary to make sure all wires are properly connected and torqued according to the
instructions in the Wall Connector Installation Manual.
4.
Once all connections have been checked and made secure, restore power to the Wall Connector and try charging
again by reconnecting to the vehicle.
5.
If the issue persists, the Wall Connector needs service. Schedule a service appointment through your Mobile App.
(CC_a026)
Unable to charge - Wall Connector issue
Wall Connector needs service
What this alert means:
Wall Connector hardware issue. Possible issues include:
1.
Contactor not working
2.
Self-test of internal ground fault monitoring circuit failed
3.
Thermal sensor disconnected
4.
Other hardware component issues
What to do:
An internal issue was detected by the Wall Connector.
1.
Try charging again by disconnecting the Wall Connector from the vehicle and reconnecting.
2.
If the issue persists, turn OFF the circuit breaker for the Wall Connector, wait 10 seconds, and turn the circuit
breaker ON again. Then try reconnecting the Wall Connector to the vehicle.
3.
If the issue persists, check for loose connections.
a.
Make sure there is no power to the Wall Connector.
b.
Remove the face plate and inspect the wiring terminals for any loose connections.
c.
Contact an electrician if necessary to make sure all wires are properly connected and torqued according to the
instructions in the Wall Connector Installation Manual.
4.
Once all connections have been checked and made secure, restore power to the Wall Connector and try charging
again by reconnecting to the vehicle.
5.
If the issue persists, the Wall Connector needs service. Schedule a service appointment through your Mobile App.
Troubleshooting Alerts
216MODEL 3 Owner

(CC_a027)
Unable to charge - Wall Connector issue
Wall Connector needs service
What this alert means:
Wall Connector hardware issue. Possible issues include:
1.
Contactor not working
2.
Self-test of internal ground fault monitoring circuit failed
3.
Thermal sensor disconnected
4.
Other hardware component issues
What to do:
An internal issue was detected by the Wall Connector.
1.
Try charging again by disconnecting the Wall Connector from the vehicle and reconnecting.
2.
If the issue persists, turn OFF the circuit breaker for the Wall Connector, wait 10 seconds, and turn the circuit
breaker ON again. Then try reconnecting the Wall Connector to the vehicle.
3.
If the issue persists, check for loose connections.
a.
Make sure there is no power to the Wall Connector.
b.
Remove the face plate and inspect the wiring terminals for any loose connections.
c.
Contact an electrician if necessary to make sure all wires are properly connected and torqued according to the instructions in the Wall Connector Installation Manual.
4.
Once all connections have been checked and made secure, restore power to the Wall Connector and try charging
again by reconnecting to the vehicle.
5.
If the issue persists, the Wall Connector needs service. Schedule a service appointment through your Mobile App.
(CC_a028)
Unable to charge - Incorrect switch setting
Wall Connector rotary switch must be adjusted
What this alert means:
Incorrect rotary switch setting.
What to do:
Make sure there is no power to the Wall Connector. Remove the face plate and adjust the rotary switch to a valid
operating current setting. The correlation between switch setting and current is printed on the inside of the Wall
Connector. You can also refer to the Set the Operating Current section in the Wall Connector Installation Manual. If
the Wall Connector is set up for load sharing (paired with other Wall Connectors), the rotary switch of the master
unit must be set to an operating current setting that allows each paired Wall Connector to receive at least 6A of
charge current. Example: Three Wall Connectors are paired for load sharing. The master unit needs to be set to a
current of at least 3 * 6A = 18A or greater.
(CC_a029)
Unable to charge - Vehicle connection issue
Insert charge handle fully into charge port
What this alert means:
A communication error occurred between the Wall Connector and the vehicle.
Troubleshooting Alerts
217Consumer Information

What to do:
Try again by disconnecting the Wall Connector from the vehicle and reconnecting. If possible, plug the vehicle into
another Wall Connector or a Mobile Connector to determine if the vehicle is able to communicate with other
charging equipment. If the problem persists, contact Tesla.
(CC_a030)
Unable to charge - Primary / paired unit mismatch
Wall Connector current ratings must match
What this alert means:
Circuit Breaker Sharing Network: The paired Wall Connectors have different maximum current capabilities.
What to do:
Only Wall Connectors with the same maximum current capabilities can be paired in a load-sharing (circuit breaker
sharing) network. Inspect the type labels on the Wall Connectors to make sure the current capabilities match. It is
further recommended to only pair Wall Connectors with the same part number, as an easy way to make sure paired
units are compatible.
(CC_a041)
Charge rate reduced - Wall connection hot
Outlet or Wall Connector wiring must be checked
High temperature detected by Wall Connector alerts indicate the building connection to the Wall Connector is
getting too warm, so charging has been slowed to protect the wiring and Wall Connector.
This is not typically an issue with your vehicle or your Wall Connector, but rather an issue with the building wiring.
This may be caused by a loose building wiring connection to the Wall Connector and can be
fixed quickly by an
electrician.
To regain normal charge speed, contact an electrician to inspect the building wiring connection to the Wall
Connector. They should make sure that all wires are properly connected and torqued according to the installation
guide for the Wall Connector.
Wall Connector installation guides can be found here.
(CP_a004)
Charging equipment not recognized
Try again or try different equipment
The charge port is unable to detect whether a charge cable is inserted or the type of charge cable connected.
If this alert appears while a charge cable is connected, it should be determined whether the issue is caused by the
charging equipment or the vehicle. Try charging the vehicle using
different external charging equipment (charge
cable, charging station, charging stall, etc.).

As this alert is usually specific to external charging equipment and power sources, and it does not typically indicate
an issue with your vehicle that can be resolved by scheduling service, it is recommended that you:

(CP_a043)
Charge port door sensor fault
Charge port may not operate as expected
One of the charge port door sensors is not functioning normally. When this occurs, the charge port may be unable to
accurately sense the charge port door position and the charge port may not operate as expected.

(CP_a051)
Charge port may not open when pressed
Use another method to open the charge port
One of the charge port door sensors is not communicating properly. This may cause the charge port to not recognize the request to open when the charge port door is pressed.
You can still use all other usual methods to open the charge port door:

(CP_a054)
Charge port latch not engaged
Fully insert charge cable or check for obstruction
The charge port latch is unable to latch the charge cable in the charge port inlet. If the latch is not engaged, AC charging (for example, charging with a Tesla Mobile Connector or Wall Connector) will be limited to 16A and DC Fast
Charging / Supercharging will be unavailable.
The charge port light will pulse amber if this alert appears during AC charging and will be solid amber if this alert appears when attempting to DC Fast Charge / Supercharge.
If your vehicle begins charging and the charge port light pulses green, the charge cable may not have been fully
inserted before. The latch may not have engaged during previous attempts because the cable was not fully inserted.
AC charging should no longer be limited, and DC Fast Charging / Supercharging should be available.
If charging is still limited or the vehicle will not charge at all, inspect the charge port inlet and the charge cable
connector for any obstructions (use a
flashlight as needed). Debris and/or foreign objects in the charge port inlet or
the charge cable connector can prevent you from fully inserting the charge cable. If the cable is not fully inserted,
the charge port latch will not engage.
It is recommended that any debris / foreign objects be removed. Afterward, try re-inserting the cable into the charge port inlet. AC charging should no longer be limited, and DC Fast Charging / Supercharging should be available.
As this alert is usually specific to external charging equipment and power sources, and it does not typically indicate
an issue with your vehicle that can be resolved by scheduling service, it is recommended that you: