Well I found the resistor pack finally. It is about 1x2.5-in but is a gray colored "cardboard type" piece with a black connector, no white. Also at first glance I don't see any screws to remove it. Unplugged I have no low speeds only high. Either way plugged or unplugged, high stays on for maybe 1min at best, the same as before.
I'll look at the switch next. Is there also a high-speed relay that could be going bad? Seems like I read that somewhere, but I've got so many troubleshooting projects going right now I can't remember.
Thanks for your help so far.
