Problems with home charging after over a year of charging with 240 V 30 A

[Sans-gas]

Yes it was considered, but not the problem. Thanks for the thought though.

 

[toolman335]

Unless I missed it, have you tried supercharging?

 

[Sans-gas]

This issue doesn’t occur with supercharging.

 

[Sans-gas]

No improvement noted now that car is on 2020.36.11.

 

[toolman335]

This issue doesn’t occur with supercharging.

So it's not your car. In any way, shape or form.

 

[Sophias_dad]

So it's not your car. In any way, shape or form.

That is an incorrect assumption. I'm not saying that it is definitely the car, but the fact that someone else's UMC produces the same failure suggests that it IS the car. Its still possible that the supplied voltage/amperage/waveform is somehow defective and that the car has become more picky. I'd think that would cause MANY more tesla owners to have problems, since entire areas of towns are supplied by the same utility, and least significant chunks of streets are covered by the same transformer.

The parts responsible for charging a Tesla off an L2 charger(AC) are distinct from the parts responsible for supercharging(DC). They undoubtedly converge at some point, whether it be the HV battery or not, but its well past the plug on the side of the car. There are several instances where one of the three 16A blocks of rectifier in the AC circuit fail(on an LR), and L2 charging speed drops to 32 of 48 amps, whereas that same car would supercharge just fine because the rectifiers aren't used for DC(supercharging)

I'm pretty surprised Tesla doesn't just send a team to a few of these users having the problem to figure out what's going on.

 

[pjensen]

I'm pretty surprised Tesla doesn't just send a team to a few of these users having the problem to figure out what's going on.

They could write a program to record the a/c voltage using the car's onboard computer, store it then upload it to Tesla. Like an oscilloscope. That should help figure out the issue.