I've been using a HPWC on a 14-50, derated to 40A, as a temporary solution until I hardwire in a few units. Yes, technically this is not 1) to code and 2) can cause issues as the HPWC has ground fault protection built-in.
That said, it's been working for hundreds of charge cycles on our MY. It also has worked perfectly for a MX loaner we had.
A few days ago we got a M3 loaner and it trips the breaker ever night. What's odd is that it doesn't trip on every charge or any charge I can monitor, it only trips at ~5am. I've literally turned charging on/off 20 times in a row and it's fine at 40A. I don't have scheduled charging turned on, so the ~5am is quite arbitrary. My power monitoring doesn't show any current draw at that time. It's just a quick trip. So odd.
Anyway not a huge issue but curious what everyone thinks it could be, especially that it only happens on the M3 and not MX/MY.
That said, it's been working for hundreds of charge cycles on our MY. It also has worked perfectly for a MX loaner we had.
A few days ago we got a M3 loaner and it trips the breaker ever night. What's odd is that it doesn't trip on every charge or any charge I can monitor, it only trips at ~5am. I've literally turned charging on/off 20 times in a row and it's fine at 40A. I don't have scheduled charging turned on, so the ~5am is quite arbitrary. My power monitoring doesn't show any current draw at that time. It's just a quick trip. So odd.
Anyway not a huge issue but curious what everyone thinks it could be, especially that it only happens on the M3 and not MX/MY.