Whirlpool washer model# wtw5700sw0 fills, spins, drains but will not agitate. Small "humming" noise is heard when it is supposed to be agitating and smells like motor is over heating. Tripped circuit breaker once before.

It is possible the motor is causing the problem. Here is a parts layout on right side of page in link.

Part Advantage :: Category Search (http://www.partadvantage.com/store/categories/wp/WTW5700SW0)