a. If the alert is no longer present, the issue is likely with the wall plug adapter you were
using previously.
b. If the alert persists, the issue is likely with your Mobile Connector.
It is recommended that you obtain another wall plug adapter or Mobile Connector as needed,
based on the troubleshooting steps above.
In the meantime, you can continue to charge with the same equipment. The charge rate will be
reduced, as charge current will be limited to 8A while this condition persists.
You can also try charging your vehicle using a Tesla Supercharger or Destination Charging
location, all of which can be located through the map on your vehicle's touchscreen display. See
Maps and Navigation on page 152 for more details. Additional third-party charging stations may
also be available in your area to help you to pinpoint the issue.
For more information on troubleshooting Mobile Connector status lights and charging issues,
refer to the product's owner's manual.
(UMC_a016)
Mobile Connector control box temperature high
Maximum charge rate reduced
Charge current has been temporarily reduced because the Mobile Connector has detected
increased temperature inside its control box housing.
Make sure the Mobile Connector is not covered by anything, and that there is no heat source
nearby. If the problem persists in normal ambient temperatures (under 38°C), service is
required.
You can also try charging your vehicle using a Tesla Supercharger or Destination Charging
location, all of which can be located through the map on your vehicle's touchscreen display. See
Maps and Navigation on page 152 for more details. Additional third-party charging stations may
also be available in your area to help you to pinpoint the issue.
For more information on troubleshooting Mobile Connector status lights and charging issues,
refer to the product's owner's manual.
(UMC_a017)
Charge rate reduced - Wall plug temperature high
Wall outlet and wiring inspection recommended
High temperature detected by Mobile Connector alerts indicate the outlet used to charge is
becoming too warm, so charging has been slowed to protect the outlet.
This is not typically an issue with your vehicle or your Mobile Connector, but rather an issue with
the outlet. A warm outlet may be caused by a plug that is not fully inserted, a loose building
wiring connection to the outlet, or an outlet that is beginning to wear out.
To regain normal charge speed, make sure your adapter is fully plugged into the outlet. If
charging speed does not return to normal, contact an electrician to inspect the outlet and
building wiring connections to the outlet and complete any repairs needed.
If the outlet is worn, it should be replaced with a high-quality outlet. Consider upgrading to a
Tesla Wall Connector for greater convenience and highest charging speed.
Troubleshooting Alerts
294 MODEL 3 Owner's Manual
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