Wall charger overheating again....

[D-Hause]

Hello! A few months ago I was getting three red lights while the car was charging but slowly. I installed new firmware and that did the trick. Started happening again today, logged online w/ the charger showed no new updates so did an offline update and resintalled firmware. Worked for about 20 minutes now its overheating again.

Anyone dealt with this lately?

 

[jcanoe]

How warm was the garage when the Wall Connector stopped charging?

 

[gcsutton]

My experience is unless it's a -G Rev WC it will overheat, with any firmware.

 

[Y_tho]

Not lately but... my first one (which I bought a year ago) had an overheat issue, and I had no issue getting it exchanged. Pretty sure it was a known issue back then, and there were numerous reports of overheating, on the forum.

Since the swap-out (in September '20), never another issue.

 

[D-Hause]

How warm was the garage when the Wall Connector stopped charging?

Pretty warm but not any worse then it’s been this summer

 

[jcanoe]

Pretty warm but not any worse then it’s been this summer

Have you tried lowering the charging amperage? If you normally charge at 48A then set the maximum amperage on the Tesla charging screen to 40A or 32A.

 

[jaykk11]

You should take it to the 4s shop repairs.

 

[Rice&Curry]

what is make is the charger? Did you install it or did any certified electrician was involved in installing and connecting the charger to the proper circuit.

 

[jcanoe]

what is make is the charger? Did you install it or did any certified electrician was involved in installing and connecting the charger to the proper circuit.

The OP stated this is a Tesla Gen3 Wall Connector.

 

[D-Hause]

I will check the AMPs and lower to see if that works

yes gen 3, installed by a pro electrician

the firmware reinstall has worked great for a couple months with no issues. The unit is from September 2020…

 

[RNHurt]

I have a "-F" model version gen 3 wall connector and it started giving me the 3 red lights. I emailed Tesla support and they pushed a firmware update to it and told me to reboot the connector and try again. After trying all that I was still getting 3 red lights so I called them. While I was on the phone the technician went through some debugging processes and confirmed that my connector was overheating that that they would replace it. I should get the new connector early next week; I have to replace the front panel and send it back to them.

The debugging process was kinda neat. The technician could tell how hot the wall connector (104°C) and the handle (42°C) were getting. The determined that this was too high so they replaced it. Apparently, they could access the charging history from the connector as well. Kinda creepy really, if you think about it.

 

[Clark_Kent]

Have you tried lowering the charging amperage? If you normally charge at 48A then set the maximum amperage on the Tesla charging screen to 40A or 32A.

Lowering the charging amperage is not a solution. The WC if working properly will operate normally at any amperage setting.

 

[jcanoe]

Lowering the maximum charging amperage, if it works, would be a temporary fix. If lowering the amperage does not resolve the issue then you would have to look into what else might be causing the charging interruption. Besides, lowering the amperage is arguably safer than wrapping a damp cloth around the charging connector.

 

[D-Hause]

I have a "-F" model version gen 3 wall connector and it started giving me the 3 red lights. I emailed Tesla support and they pushed a firmware update to it and told me to reboot the connector and try again. After trying all that I was still getting 3 red lights so I called them. While I was on the phone the technician went through some debugging processes and confirmed that my connector was overheating that that they would replace it. I should get the new connector early next week; I have to replace the front panel and send it back to them.

The debugging process was kinda neat. The technician could tell how hot the wall connector (104°C) and the handle (42°C) were getting. The determined that this was too high so they replaced it. Apparently, they could access the charging history from the connector as well. Kinda creepy really, if you think about it.

Thanks, I’m gonna call them today and see what they can do. We gave up privacy when we bought these cars but they are so fun to drive I’m cool with it!

 

[Velcade]

Apparently, they could access the charging history from the connector as well. Kinda creepy really, if you think about it

It's not creepy... you can do it too. http://<IP address of wall connector>/api/1/lifetime

It makes trouble shooting really easy.

 

[D-Hause]

Thanks for all your feedback, Tesla is sending me a new wall unit

 

[jcanoe]

Thanks for all your feedback, Tesla is sending me a new wall unit

In the meantime do you plan to charge elsewhere? Will the current Wall Connector oeprate if you lower the charging amperage? Just curious.

 

[RNHurt]

It's not creepy... you can do it too. http://<IP address of wall connector>/api/1/lifetime

It makes trouble shooting really easy.

Yes, I just found this out and built a simple Grafana dashboard to keep track of it!

 

[zikronix]

Yes, I just found this out and built a simple Grafana dashboard to keep track of it!
View attachment 690210

Can you share this

 

[RNHurt]

Can you share this

Sure. I just created a Github project with this code. It's nothing to write home about but it seems to work. I can possibly add the Graphana stuff if you want.