Is anyone a mechanic, or had this happen?

Someone keeps dropping dry cat food chunks into it, so yesterday I took it totally apart and cleaned it really good. When I went to plug it back in, it didn't start up.

Either I got water in the motor part, or the motor got clogged with soggy cat food chunks.

The cats have lost interest in it anyway (being much more interested in the water bowl we had to put in the living room for Bandit, the old dog), but Abby liked to lay by the fountain and watch the water.

I bought it on eBay, so I can't return it.

I'd really like to get it working again, so if anyone knows how to fix it I'd really appreciate it!