L
LessyMessy
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jcanoe: I checked and the circuit breaker is labeled 50 Amps - see below. I am assuming I should replace it with a 60 Amp breaker. Do you think that's the most probable cause?
I would get the electrician who installed the circuit involved. All connections should be checked and torqued to the correct spec. If the breaker continues to trip at the higher amperage charging levels it might be a defective breaker (easy for an electrician to replace the breaker and then you can readily determine if the problem is resolved.)
While charging you can lower (not raise) the amperage from within the Tesla app and from the charging screen. Example: the default charging amperage is 48 amps (based on a handshake between your Tesla Model Y and the Tesla Wall Connector.) You can lower this to 40 amps or 32 amps. Then see if the circuit breaker continues to trip.
A tripping breaker indicates a problem with the equipment or the wiring. You should have an electrician check the installation for a loose connection (this is a common problem). It is also possible that the circuit breaker is faulty (bad breaker right out of the box).
A different concern would be that the electrician used a circuit breaker with an incorrect amperage rating or that the type, gauge of wiring for a the circuit is wrong. Verify that the circuit breaker is labeled 60 amps. Charging at 48 amps requires a circuit rated for 60 amps and a 60 amp circuit breaker. (A common mistake is to install a circuit breaker rated for 50 amps thinking that this is correct and OK because when charging at home using level 2 charging (240 volts) the Tesla Model Y will only charge at up to 48 amps.)
The Wall Connector needs to be provisioned (setup) when first installed for the circuit. The Wall Connector's default setting is for a 60 amp circuit. If used on a circuit only rated for less than 60 amps, i.e. 50 amps there is a risk of the wiring overheating as the maximum safe charging amperage for a 50 amp circuit is 40 amps not 48 amps. (Correctly provisioning the Tesla Wall Connector for the charging circuit ensures that the charging amperage is correct for the circuit; limited to 80% of the circuit rating.)
https://www.tesla.com/sites/default...ng/Gen3_WallConnector_Installation_Manual.pdf
It is possible that the Tesla Wall Connector you received is defective. If after verifying that the circuit wiring is correct and the connections are properly tightened and that the circuit breaker is OK then you should contact Tesla.
Troubleshooting a Gen 3 Wall Connector
Lastly, can you charge your Tesla Model Y without tripping a circuit breaker or without issue at other locations such a work or a public level 2 charging station? Can you charge your Tesla Model Y using a Supercharger? If you encounter issues when charging away from your home then the source of the issue may be the Tesla Model Y's charging port, wiring or on-board charger.
