I agree, but its the sort of thing where OTA can fix it once the problem is know ... and having 3rd party Elastoplast solution does at least allow working around the problem. Back in the dark ages a problem like this would have required "upgrading to latest model" ... bringing with it a new set of bugs/compromises!
Not heard of it before on the airwaves, so might be a physical problem that needs fixing?
It’s a thing my search has found mentioned in quite a few threads where owners have local voltage that gets dragged low and also triggers intermittent current restriction. The car is trying to detect high resistance (hot / overloaded) connections by looking for a particular pattern of voltage droop. This post is a good summary.
Tesla charger - any known issues with occasional low supply voltage?
So my car may have restricted the current because
1) It spotted a poor connection in my installation
2) There was a voltage fluctuation that it mistakes as a poor connection
3) The voltage went to a too low level
3 seems unlikely since the car can be charged at 208V nominal in the US, so must be capable of accepting voltages down to the 180s. It’s permitted to being US cars to Europe and vice versa so its the same circuit.
1 also seems unlikely since its a new professional install which had no issues so far. However its worth keep an eye on.
2 seems the most likely since the supply was at its amps limit and so at its biggest voltage drop, and other posts indicate that the car seems to mistake low voltage dips for poor connections. As the load / current changes the voltage drops varies, and the car may be mistaking the voltage drop as bad connection droop.
Physical problem? Yes it may be there is a real physical problem.
In the supply? I will check for hot joints.
In the car? Maybe since it threw a hardware error. No reply from service on that yet.
Elastoplast workaround.... Yes you are quite right its amazing that we have third party automation provision to impose our own solution. As an engineer the one things that makes me cautious is “fixing” a reduced current that is intended as a safety feature. But yes a single return to 32A is not going to make much difference. Probably I can program that at 1am after the time I am likely to be causing the extra going to bed water heating that caused the event.