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I've plugged in at plenty Gen1 HPWCs at destination charger places and never had issues.
8 red light flashes on HPWC when it happens?So a Tesla Mobile Tech came over to check out my issue yesterday and could not figure out why the HPWC was tripping with the Model X but worked fine with my 2015 S P85D. They have ordered me a new Gen2 HPWC which should be here on Friday.
In my experience, charging always tapers. I have two Gen 2 HPWCs (see sig) and it always slows down ‘towards the top’. I use a max of 40 amps usually (unless in a hurry) and I always see it go to 20 and to 5, (continual, not steps) before stopping at my usual limit of 80 kWh.Our X 100D arrived last Thursday. At home, we're charging it on the 14-50 connector that we used with our 2012 S P85 (which we traded-in for the X).
We've noticed that the charging will start at 40A and then drop down to 26-27A by the end of charging.
Is anyone else seeing this?
Is Tesla tapering home charging? Is there an incompatibility with the 14-50 connector (which we purchased early last year)? Or is this an issue with the software or onboard chargers?
8 red light flashes on HPWC when it happens?
1 flash means ground fault. Are you sure the red flashes on the HPWC are not grouped in larger groups?It appears to be a constant red blink but perhaps it is a single blink that is just repeating; can't say for certain.
Where is this dip switch?Have you tried setting the HPWC in legacy mode (the dipswitch?)
Aha, then it applies to my European model only.Where is this dip switch?
Gen1 HPWC has this the dip switches shown below, but nothing about "legacy mode". From the installation manual:
View attachment 313133
Aha, then it applies to my European model only.
Yep, those guys made me and my mates totally uninteresting for the girls in our school.Aha and Norway reminds me of the good old 80's. Sorry,.. just had to do it. ;-)
Talked to Tesla's charging team yesterday about the situation.
They are aware of some incompatibilities between Gen 1 charging hardware (HPWC, UMC, 14-50 connector) and the new MCU 2 cars.
I suspect the problem is caused by the faster MCU2 processor - the software is running faster on the new MCU, causing communication problems with the older charging gear.
With our Gen 1 HPWC, our new X 100D detects the HPWC can support 72A, starts to charge and almost immediately trips the HPWC, resulting in a "red ring of death" at the charging port. Resetting the breaker on the HPWC causes the process to repeat - and another red ring of death.
Using our Gen 1 14-50 connector, the X 100D starts at 40A of charging and appears to ramp down to 26A by the time it reaches 90% charge.
We haven't had any problems using the same charging hardware with our 2012 S P85 (now traded-in for the new X) and 2017 S 100D.
Even with reduced amps, we are able to charge our new X overnight.
The problem is with destination chargers - we did a short road trip last weekend, and the Gen 1 HPWC's kept interrupting charging - though we could have switched to the adjacent J1772 charger, which likely works OK, just slower.
The charging team indicated the problem is being reviewed - and we'll should see a software fix within the next month or two. Until then, if we take a road trip, we'll make sure we have a Plan B for destination chargers, in case we encounter this problem on the road...