In garage in SFL, probably 80's. Ring starts blue, screen says charge will start soon, then changes to fast pulsing green and charging begins. Started at 32A/32A, when checked later 5A/5A. UMC on wall in garage, never outside. No error messages. Removed UMC and restarted atfer resetting screen to 32A. Completed charge without problem. Just something to live with or a problem?
I had/have this problem as well, and mine also was/is not a connection issue (I always firmly push the connector into port and wait for dark green flashing light). I took it into the service center a few months ago and thought it was fixed; however, it just happened again yesterday. I have my theory, but a few questions for you:
1. Do you have this issue only at one charging location or has it happened at multiple charging locations?
2. If you do not reset the screen to 32A, but just unplug and plug back in, does it still limit it to 5A?
3. Have you ever manually set the charging limit to 5A in the past at this charging location (home I assume)?
Here is what happened to me:
1. Took the family to France for a two week vacation, and so I set the charging limit to 5A while we were gone.
2. When I returned I changed the charging limit back to 40A.
3. Within a few days, the charging limit automatically changed back to 5A.
4. I reset the charging limit again to 40A.
5. It happened another two times over the next week, and I realized that it was happening in the middle of charging (i.e. it would start at 40A, then automatically switch to 5A sometime during the charging session).
6. My troubleshooting consisted of (i) making sure I firmly pushed in the charging cable, (ii) charging at a different location after no reset of the charging limit (worked fine at 40A), (iii) soft rebooted the computer, (iv) reset UMC (button on back), and finally, (v) taking the car to the service center.
By the way, I can only charge to 72% (software-limited 60 kWh car), so it is not some automatic lowering of amps when getting close to full charge. Plus, that shouldn't change the actual charging limit anyway.
Here is what I think/guess happened in my situation: since the charging limit is location-based (GPS), I think the car's GPS location was slightly different when I set the 5A limit to when I cleared/reset it back to 40A upon return 15 days later (even though the car didn't move). So, I believe that there is still some residual/phantom charging limit location in the system that activates every once and a while when the GPS is slightly off (in a similar fashion to when I originally set it).
I have asked Tesla to completely clear all location-based settings in the car, but their response has always been pretty vague as to whether or not they have been able to accomplish this.
@robaross: it would be interesting to know if, after your car switches to 5A and you do NOT reset the screen to 32A, does another charging location still limit you to 5A?