I have a 1 year old 2hp insinkerator garbage disposal. No problems until today. I put a couple of old pickled vegetables (not very much) in and turned it on and the motor just stalled. I could hear the hum, thats it.
First, I disconnected the power, cleaned it out and verified that it spun freely. I turned it back on and the same thing happened. I did the same thing except I separated it entirely from the plumbing. the trap on the discharge side had mostly clear water in it. Not buildup. I also continued to clean out the disposal, but at that point there wasn't much more to clean. Bench tested it, and it worked. Put it back together and it worked. I left it running while I checked the drain for leaks, no issues. Put a few scraps in and ran it just to make sure. No problems.
An hour later, the same thing happened again. Once again, this time there was barely anything in it.
Any idea what could cause this, Originally I was worried that the problem may be the motor, now I'm kinda wondering if it could be a back pressure issue. not sure why though.
I tried putting an allen wrench in the bottom. It turns without resistance. I tried a few iterations of half a dozen turns followed by giving it power. Still having the same issue.