Kenmore 70 series will not spin?

I have a 70 series Kenmore washer. (110-82872100) It will not spin. I checked the coupler and it is in perfect condition. When it is in the spin cycle it humes like the motor is working but nothing happen. I unplugged it and noticed that the plug was real real hot. Sometimes it will spin if i put it on another cycle but that is only sometimes. Any other suggestion of what it could be. Also another question. When i turn the washer on cold i don't get any water to the washer. I checked the hoses and they are clear. Any suggestions on that as well.