Chris's father brought warm clothes and instructions from commnet on what to do.
He opened the breaker for the left front wheel variable frequency drive, reset the main breaker, acknowledged the fault and the chair started working again.
All the while raging about how the designer shouldn't have the main breaker trip the moment a ground fault is detected and how fail safe in a bad location isn't fail safe at all. I learned words that day I'm still too embarrassed to use.
Sitting in the cold and the wet had taken its toll on Chris. He got very ill.
Everyone kept telling me I was a good dog for getting help. I didn't feel like a good dog. I kept going back to how fast his dad had gotten the chair working. If I had known what to do, Chris would have never gotten sick.
That's when I decided Chris wasn't going to get stuck like that again. I was going to learn how to fix his chair and I wasn't going to let the lack of thumbs deter me.