Help - Truck Won't Take Charge after 2024.26.7 UPDATE (NOT the Software)

[darkfyre]

48A is normal for Wall Connector, especially on a Powershare setup. Current generation mobile connectors can only do 32A.
If the WC was misconfigured and the breaker were smaller, then it would trip and the charge port wouldn't turn blue.
If the wiring were undersized, the vehicle would reduce charge current, not fail to charge at all.

This is correct. 48A is normal from a wall connector.

A service person should be able to see any error messages with the truck specific to charging (especially if your Supercharging trip doesn't yield results). Good luck!

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[rtfitch]

48A is normal for Wall Connector, especially on a Powershare setup. Current generation mobile connectors can only do 32A.
If the WC was misconfigured and the breaker were smaller, then it would trip and the charge port wouldn't turn blue.
If the wiring were undersized, the vehicle would reduce charge current, not fail to charge at all.

Two things are going on, here, after staying up all night to sort it out:

1.) Even after deleting scheduled charging time from 12AM-6AM, which is my Tesla Electric Free Charging Time, I cannot charge outside of that time. But when 12AM rolls around, bazinga, it charges so it is not a default in the CT.

2.) The breakers are an issue, they are 40A and right out of the gate the wall unit is pulling 48A at 228V. They trip after 10 minutes. I did not figure this out until my charging window had passed but to use the existing breakers I will need to step the App's amps down to 36 A so the breakers don't trip OR install the correct breakers. I get all that but I really need to find a workaround the Tesla Electric charging time. It just is NOT allowing me charge, at this location - home, at any other time than 12-6AM.

 

[rtfitch]

Two things are going on, here, after staying up all night to sort it out:

1.) Even after deleting scheduled charging time from 12AM-6AM, which is my Tesla Electric Free Charging Time, I cannot charge outside of that time. But when 12AM rolls around, bazinga, it charges so it is not a default in the CT.

2.) The breakers are an issue, they are 40A and right out of the gate the wall unit is pulling 48A at 228V. They trip after 10 minutes. I did not figure this out until my charging window had passed but to use the existing breakers I will need to step the App's amps down to 36 A so the breakers don't trip OR install the correct breakers. I get all that but I really need to find a workaround the Tesla Electric charging time. It just is NOT allowing me charge, at this location - home, at any other time than 12-6AM.

Just talked with my Electrician and he says that we used my existing #8 gauge wire for the charger and it is ONLY rated to as high as 40 amps max. Recommended I set the App to 36 as I had already figured out. Not what I wanted to hear but it will work...now to tackle the out of Tesla Electric subscription window....but I am at least alive and running. Learned a lot overnight and now my Canine Kids and I might take a little nap. Thanks to all of you for your knowledge and help and I will let you know what Tesla Electric has to say about the charging time/schedule.

 

[mongo]

Just talked with my Electrician and he says that we used my existing #8 gauge wire for the charger and it is ONLY rated to as high as 40 amps max. Recommended I set the App to 36 as I had already figured out. Not what I wanted to hear but it will work...now to tackle the out of Tesla Electric subscription window....but I am at least alive and running. Learned a lot overnight and now my Canine Kids and I might take a little nap. Thanks to all of you for your knowledge and help and I will let you know what Tesla Electric has to say about the charging time/schedule.

With 8 wire on a 40A breaker, the wall connector should be set to a 40A breaker for 32A (80%) max charge current.

1.) Even after deleting scheduled charging time from 12AM-6AM, which is my Tesla Electric Free Charging Time, I cannot charge outside of that time. But when 12AM rolls around, bazinga, it charges so it is not a default in the CT.

Weird, the Tesla site indicates they set up your vehicle with the free charging window initally, but it should be able to charge outside of that. https://www.tesla.com/support/tesla-electric

 

[M0unt41nm4n]

Just talked with my Electrician and he says that we used my existing #8 gauge wire for the charger and it is ONLY rated to as high as 40 amps max. Recommended I set the App to 36 as I had already figured out. Not what I wanted to hear but it will work...now to tackle the out of Tesla Electric subscription window....but I am at least alive and running. Learned a lot overnight and now my Canine Kids and I might take a little nap. Thanks to all of you for your knowledge and help and I will let you know what Tesla Electric has to say about the charging time/schedule.

Your electrician is a meatball. He should have known better to wire in 6 gage. He should have looked at what you are doing, checked your amps on the charger and knew immediately that you needed 6 gage and a 60 amp breaker. The first thing my electrician did was look at the manual on my charger and knew exactly what had to be done. I would go get a proper electrician to fix your original electrician’s steps or read your electrician the riot act and get him to make it right. Trust me, you want the full 48A. It makes a world of difference on charging speed.

 

[Gogster2k]

Your electrician is a meatball. He should have known better to wire in 6 gage. He should have looked at what you are doing, checked your amps on the charger and knew immediately that you needed 6 gage and a 60 amp breaker. The first thing my electrician did was look at the manual on my charger and knew exactly what had to be done. I would go get a proper electrician to fix your original electrician’s steps or read your electrician the riot act and get him to make it right. Trust me, you want the full 48A. It makes a world of difference on charging speed.

Agreed. My electrician also installed 6 gauge with a 60 amp breaker set for my wall connector. No issues with high current charging at all.

 

[darkfyre]

Your electrician is a meatball. He should have known better to wire in 6 gage. He should have looked at what you are doing, checked your amps on the charger and knew immediately that you needed 6 gage and a 60 amp breaker. The first thing my electrician did was look at the manual on my charger and knew exactly what had to be done. I would go get a proper electrician to fix your original electrician’s steps or read your electrician the riot act and get him to make it right. Trust me, you want the full 48A. It makes a world of difference on charging speed.

This 100%. Limiting the amps in the app is prone to error and if you draw more, you risk a serious fire!

You should be able to log into the Wall Connector's Wifi radio and configure the charger. This will make it so that it won't over-current the electrical equipment that supplies it with energy. I would 100% do this after you get some sleep! Staying up all night tinkering with devices is fun but also sucks.

Fire your electrician too. After you get a some sleep, good luck!

 

[mongo]

If going 60A breaker specify at least 6 gauge thhn.
6 gauge NM-B (Romex) is undersized.

 

[eswimm]

As long as the breaker (40A) matched the wire, then the circuit was properly protected, although the wall connector should obviously be set appropriately so it doesn't try and overdraw the circuit and trip the breaker. If you don't need the extra charging speed, then 32A should be fine, I'd still prefer the wall connector over the mobile connector.

Did you try the Start Charging button in the first screenshot that was posted? We have a smart charging program through our electric provider and even though they control the scheduling, we can override as needed.

 

[GatorCyber]

Your electrician needs to come back out with the correct wire and breaker so you can keep your charging during the free hours.
Also, unless you drive a lot every day, the batteries like to stay around 50% instead of 65-80%

 

[REM]

Your electrician is a meatball. He should have known better to wire in 6 gage. He should have looked at what you are doing, checked your amps on the charger and knew immediately that you needed 6 gage and a 60 amp breaker. The first thing my electrician did was look at the manual on my charger and knew exactly what had to be done. I would go get a proper electrician to fix your original electrician’s steps or read your electrician the riot act and get him to make it right. Trust me, you want the full 48A. It makes a world of difference on charging speed.

Came here to say this. He sounds like a lazy hack that couldn't be bothered to do it right. I'd make him fix it, but watch him like a hawk so he doesn't cut corners.

 

[L3it3R]

Solution: new electrician. Glad it's not your truck.

 

[mstatkus]

You can lower the max output of the Wall Connector. QR Code on the side should take you to the browser admin page. Requires disconnecting the truck, turn the breaker off then on and you got 5 minutes to connect to a Wifi “Tesla_WallConnector” so you can turn that down.

I’ve had cases where if I open my garage door the car/truck seems to get a different GPS location and it defaults back to 48A so if your setup can’t support that even turning it down to something 8AWG wire can handle *could* become undone by something as simple as geolocation. (just a warning). So in this case I’d definitely limit what it can serve up as the car may not be a reliable mechanism of turning down the amps.

As others stated I would def get a better electrician. I’ve had friends install there’s and the guy didn’t torque down the 240V lines and one even popped out while the car was charging.

Similar situation with a TT-33 adaptor to 14-50 used at a RV Park. We have to turn down to 24A otherwise we trip the circuit since the cars going to want to default to 32A.

 

[JackCypher]

Today, while sitting in the driveway but still on WiFi the Beast updated to 2024.26.7. Same day I was having my new Wall Charger 3 installed. Pulled her in, plugged her in and everything looked good but it stopped charging after a few moments and the charger light turned blue. Have played with it to with no luck so with Tesla Support closed I pulled out the Mobile Charger and was forced to plug it in to 120 and it did the SAME thing so it is not the wall charger.

Is there a way to reboot the Trucks computer and see if that clears up the problem...I am in sort of a bind without being able to charge and would appreciate any help you guys can render. THANKS

Update, powering off, waiting 3 minutes and touching the brake to activate did not work.

There was a software update that changed the Truck & the App to NOT charge on connection and FORCES timed 'scheduled' charging for a default 8am departure time.

I had to plug in the charger - goto the app and select 'Start Charging' I now have to do this EVERYTIME...

I don't like when software changes existing esoteric behaviors - it's okay to add schedule charging - but leave the default. For me I have solar panels on my house so anytime is optimal time to charge.

I hope that is the issue for you and not a repair one.

 

[L3it3R]

There was a software update that changed the Truck & the App to NOT charge on connection and FORCES timed 'scheduled' charging for a default 8am departure time.

I had to plug in the charger - goto the app and select 'Start Charging' I now have to do this EVERYTIME...

I don't like when software changes existing esoteric behaviors - it's okay to add schedule charging - but leave the default. For me I have solar panels on my house so anytime is optimal time to charge.

I hope that is the issue for you and not a repair one.

This did not happen with the update and my truck ¯\_(ツ)_/¯

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