Tesla S Owner's Manual page 241

This alert does not typically indicate a vehicle
issue. If it continues to occur despite charging
at different locations, and after an electrician
has inspected the wiring and equipment at
your normal charging location without finding
any possible cause, only then should you
contact Tesla service.
(PCS_a054)
Unable to charge
Check for an extension cord or
bad utility wiring
Charging has been interrupted because the
onboard charger in your vehicle has detected
an unusually large voltage drop.
Likely causes of this issue include:
• Problems with the building wiring and/or
the wall outlet.
• An extension cord or other wiring that
cannot support the requested charge
current.
This issue can also result from turning on
electric devices that draw a lot of power from
the same branch circuit while the vehicle is
charging.
If this issue has occurred multiple times at
your normal charging location, contact an
electrician to inspect the electrical
installation. They should check the following:
• Any installed charging equipment and its
connection to the building wiring.
• The building wiring, including any wall
outlet used with a Mobile Connector.
• The electrical connection to the power
utility line where it enters the building.
Discuss with the electrician whether the
charge current on the vehicle should be
lowered, or if the installation should be
upgraded to support a higher charge current.
This alert does not typically indicate a vehicle
issue. If it continues to occur despite charging
at different locations, and after an electrician
has inspected the wiring and equipment at
your normal charging location without finding
any possible cause, only then should you
contact Tesla service.
Consumer Information
Troubleshooting Alerts
(UMC_a017)
Charging speed reduced
High temperature detected by
Mobile Connector
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.
(UMC_w002)
Unable to charge - Mobile
Connector GFCI tripped
Disconnect and retry or use
different equipment
The vehicle cannot charge because the
ground-fault circuit interrupter (GFCI) in the
Mobile Connector has tripped.
Like the GFCI in a wall outlet, this feature is
designed to stop the flow of electricity when
there is a problem. It has interrupted charging
to protect your vehicle and the charging
equipment.
This could happen for many reasons. The
problem could be in the charge cable, the
charge handle, the charge port, or even an
onboard vehicle component.
Inspect the charge port as well as the charge
handle for pooled water or unusual levels of
moisture.
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