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New HPWC is out (soon?)

vetboy45

Member
Feb 14, 2013
62
0
Kent wa
Is there a way to tell which unit you've got without opening it up? I just had my hpwc installed last monday and would be disappointed if I was given the old design.
 

FlasherZ

Sig Model S + Sig Model X + Model 3 Resv
Jun 21, 2012
7,024
1,013
I believe from reading here, the part number would end in -C

That's correct. Look at the label on the box or the label on the HPWC. "-C" is the revision you want, after the part number.
 

PhilBa

Active Member
Apr 20, 2013
1,382
68
Seattle
That's probably sufficient if you've recently received the HPWC box. However, if you don't have the box, I don't believe there is any way from the outside to tell if it has the larger fuses in it - the part number of the unit wasn't changed. You'd need to open it up.
 

FlasherZ

Sig Model S + Sig Model X + Model 3 Resv
Jun 21, 2012
7,024
1,013
That's probably sufficient if you've recently received the HPWC box. However, if you don't have the box, I don't believe there is any way from the outside to tell if it has the larger fuses in it - the part number of the unit wasn't changed. You'd need to open it up.

I'd start looking at the serial number. Wondering if the serial number is prefaced by T13 instead of T12, it's likely to be the new version? We need more samples to determine where the cut-off is, though. I was originally thinking it could be based upon the last digits of the serial number, but I saw one new one with 26xx, and another new one as 5000+.

(EDIT: Nope... another box vs. unit thing, I guess. Probably sequence # thing on the serial number might still work, but we don't know where the cut-off is. Best is to open it up.)
 
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PhilBa

Active Member
Apr 20, 2013
1,382
68
Seattle
Did everyone with the new design receive the wall hanger? (I did). That might be a good way to tell.
You know, that is probably right but we haven't heard from Tesla if new package = new HPWC. It makes sense but I wouldn't assume it to be true.
 

brianman

Burrito Founder
Nov 10, 2011
17,525
2,991
That's probably sufficient if you've recently received the HPWC box. However, if you don't have the box, I don't believe there is any way from the outside to tell if it has the larger fuses in it - the part number of the unit wasn't changed. You'd need to open it up.
I'm confused by this assertion.

My impression from the data so far is that "-C" is present on both the packaging and on the label on the right side of the HPWC itself for the new device (with fuse assembly), while the older has "-B". It sounds like you have evidence to the contrary. Please elaborate.
 

FlasherZ

Sig Model S + Sig Model X + Model 3 Resv
Jun 21, 2012
7,024
1,013
I'm confused by this assertion.

My impression from the data so far is that "-C" is present on both the packaging and on the label on the right side of the HPWC itself for the new device (with fuse assembly), while the older has "-B". It sounds like you have evidence to the contrary. Please elaborate.

Pictorially elaborated.
 

brianman

Burrito Founder
Nov 10, 2011
17,525
2,991
Sorry, I mis/over-stated.

My guess:
  • If you have the "C" labelling, it's the new HPWC.
  • If you have the "B" labelling and a serial # higher than ___ (2500?), it's the new HPWC. It was just packaged and sent before they had the new stickers and printed boxes.
 

PhilBa

Active Member
Apr 20, 2013
1,382
68
Seattle
The issue is packaging (AKA shipping box) vs actual part. The package has -C and -B suffixes. Both the old and new HPWC part have only a -B suffix. This is why I was complaining - until we know the lowest serial number for the new units, there's no way to tell short of opening it up. And, I suspect that they had lots of cases on hand with the part and serial numbers already printed (or didn't want to pay the price of retooling) so they just "slipstreamed" the change in. This is bad for a number of reasons - like their subcontractor finds a missing palette of cases with old SNO's or "new old" assembled inventory. They could at least have slapped a sticker on the back.

I think it is probably safe to assume thatthe -C box has the new HPWC but it would be good to actually hear that from TMC.
 
Based on TurboFroggy's pics (thanks!!) I have the old design with fuses vertical vs horizontal. Also my HPWC part number ends in a -B.

Has anyone had service upgrade your HPWC either with ranger or self-install?

It seems like this would be a great topic for TM to post about on the TM forums.
 

jpasqua

P19325
Feb 19, 2013
696
4
I emailed ownership today about getting back up to 80A on my existing HPWC. Here is the response I received:

I’ve sent a request to service regarding your HPWC fix. Service will be coordinating the fix for you. Dependant on their inventory they will either be coming out to you to repair the fuses, or sending you a new unit with the upgraded fuses. If any installation costs are required, we will of course cover all expenses associated with this. Expect them to reach out soon.

As soon as I hear from the service folks, I'll let you know what I learn.
 

andrewket

Well-Known Member
Dec 20, 2012
5,704
1,525
I spoke to Nathan @ Rockville SC today. He didn't know anything about an HPWC swap or new fuses. He said he would look into it and get back to me.

It appears Tesla is still doing a very poor job keeping their service centers informed.
 

brianman

Burrito Founder
Nov 10, 2011
17,525
2,991
I spoke to Nathan @ Rockville SC today. He didn't know anything about an HPWC swap or new fuses. He said he would look into it and get back to me.

It appears Tesla is still doing a very poor job keeping their service centers informed.
Some know more than others. I'll say more once I get confirmation vs. rumor. :)
 

FlasherZ

Sig Model S + Sig Model X + Model 3 Resv
Jun 21, 2012
7,024
1,013
Wonder if we can keep the old unit? Wouldn't mind hooking it up to a 50amp circuit at my Lake house...

It sounds like they're going to take them back for rework/retrofit and use them as replacements.
 

B-Chicago

Member
Jun 5, 2013
95
0
Chicago
The issue is packaging (AKA shipping box) vs actual part. The package has -C and -B suffixes. Both the old and new HPWC part have only a -B suffix. This is why I was complaining - until we know the lowest serial number for the new units, there's no way to tell short of opening it up. And, I suspect that they had lots of cases on hand with the part and serial numbers already printed (or didn't want to pay the price of retooling) so they just "slipstreamed" the change in. This is bad for a number of reasons - like their subcontractor finds a missing palette of cases with old SNO's or "new old" assembled inventory. They could at least have slapped a sticker on the back.

I think it is probably safe to assume thatthe -C box has the new HPWC but it would be good to actually hear that from TMC.

Received mine via fedex today. Part number ends in "C".
 

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