Welcome to the forum! You'll find loads of info here.I'm not familiar with the spreader you mention, but it sound like it has an electric motor? If so, take it to a starter rebuilder, he should be able to ID it and either repair or replace it for you. Don't be surprised if you end up back at your dealer though. I'm still waiting for a pump seal the size of a 50 cent piece that costs $25 and is only available from the dealer. These parts are produced in limited numbers compared to auto parts and that drives the price up.
Mine went out on me Saterday on my last lot (thank goodness) I called my dealer and several places that sell them and thsy all wanted over three hundred dollars for one. I decided to buy a rebuilt one and it cost $150.00
to the best of my knowledge the original cannot be rebuilt it is permamently sealed but cheaper ones are available......it seems like in the past when i ran those that i replaced it every year and i believe it is a 3/4 horse
where in ohio are you there are a few mail order houses near me that sell cheaper replacement models for the mini spreader.....(rcpw)
Electric horsepower is different then Gas horsepower. Not in the way it is measured but in what is necessary for work to occurr. Plowking35 and I found that the electric motors for full v-box sanders are only 1/3 hp. Compared to gas engines which usually run 8.5-10.5hp. It is the torque that is more important. When picking an electric motor though you should match everything as close as possible or go to the next higher rated motor.