Battery Heater Fuse (ID: 963, DATA: 0x40000000)

[smicker]

Hi All—

My Roadster is in Pennsylvania (I’m in Germany) and is giving a “ID: 963, DATA: 0x40000000” error and not charging. From a couple threads I see it could be a heater fuse, which I‘d like to try replacing before sending it to the service center. This thread Powertrain Problem ID: 963 indicates the heater fuses are below and to the left of the circled fuses in the picture below.

Does anyone know the part numbers and source for these fuses and are they hot-swappable? Are there any precautions to take before replacing them? I will have someone do this for me remotely.

Interestingly, I had the main fuses replaced at Devon last year after they failed.

Thanks,
—Paul

 

[ShawnA]

Hi Paul,

I have dealt with that one before...
The arrow is pointed at the wrong place.
You want the two gray circles at the bottom left
of the picture.

Powertrain Problem ID: 963

To add to what PV-EV said, there is a third set of fuses in that photo down and to the left of the red circled ones. You open them with a flat blade screw driver. They are for the coolant heater. My heater went bad under warranty and started periodically blowing those fuses. I can't remember for...

teslamotorsclub.com

As you can see from my holders - They do get hot...

I believe the link above will guide you to a previous discussion
with details.

The fuse is EF10AH 250 V P is a ceramic fuse - DO NOT SUBSTITUTE
They are easily and readily available at McMaster under their part 6986K642.
They are in stock and a package of 5 is about $10.

If not the thread was "Powertrain Failure: ID 963 November 1 2015.

Good luck,

Shawn

 

[hcsharp]

Those fuses are easy to replace if they haven't overheated and melted the fuse holder. @ShawnA supplied all the info you need in his post. As you can see his fuses also overheated and partially melted the fuse holder, but not bad enough to prevent him from removing the fuses. In my case I melted one of them so bad that I had to unsolder and replace the fuse holder.

It should be warm enough in PA this week that you can start charging without errors. I eventually had to replace my heater.

Are you helping out at Giga Berlin?

 

[ShawnA]

Hi Henry and Paul,

To keep the information in a single thread,
I would add the part numbers for the melted fuseholders...
Just in case you need them.

They are Littlefuse 03450121HX020 "Fuseholder knob black 5X20MM"

They are currently out of stock at digikey.
Digikey part number is F4878-ND

Shawn

 

[smicker]

Thanks all! Fuses have been ordered and will be replaced soon.

Are you helping out at Giga Berlin?

Yup, now to start making cars!