HPWC connects/disconnects every few minutes

[jboy210]

Hi,

My HPWC charges fine, but I noticed when plugged in it connects for a few seconds and then disconnects every few minutes. Any idea why this is?

 

[TWS303]

I had the same problem with my 2020 Model X LR and Gen 3 HPWC. I determined that the issue is with the HPWC. I called Tesla (510-249-2490 option 2) and they pushed out a firmware upgrade for the HPWC, which has addressed the issue.

I have also noticed that in cold weather the car charges more reliably if I turn on the heater (which heats the battery) before charging.

 

[dmurphy]

Hi,

My HPWC charges fine, but I noticed when plugged in it connects for a few seconds and then disconnects every few minutes. Any idea why this is?

What firmware is your car on? I had a similar issue but it was fixed with the 2020.48.x firmware series.