Board Thread:Off-topic discussion/@comment-26887977-20180720000448/@comment-24743922-20180721131827

Elliottw wrote: Pedroh1999 wrote: Nope, no loud POP. It just didn't work. It used to run fine on batteries, then it suddently stopped. Then, when I tried to use the power supply, the same happened... which means nothing. No POP, no weird scents, nothing. Nothing. Okay, that is actually a really good sign. Bad smells usually mean bad things happened to motors or electronics.

So here's two simple suggestions. One: you might have blown the thermistor. Here's a pic. Just unscrew it, and solder the red wire directly onto the terminal.

Two: you might have a problem called "stiction". Oh sure, it sounds like BS, but google it. Sometimes motors stop when the brushes are between commutator contacts, or when the motor can't overcome the initial friction of the gears. In either case, you just temporarily remove the gearbox from the motor, give both a spin, then reassemble.

Yes, it sounds like a major pain in the neck. But the gearbox in the Vulcan is a single unit. You can simply remove the mounting screws and pull it out. Lube it, give it a whirl, twist the motor spindle, and put it all back together again. Or do both.

PITA ? Definitely. Worth it ? Oh yeah 😉 I'll do both. I'll keep you guys updated, ok? Thanks for the tips!