I'm working on a an older Whirlpool washer model #LA610OXSNO. It will not fill with hot or cold water. If I advance the timer it will drain and spin. Also, if I fill the tub manually with water it will agitate. I swapped out the mix valve with a mix valve off another Whirlpool that I know to be good. Still the machine will not fill and there is no voltage at the terminal block that connects to the valve terminal.
Might it be the timer? The water level switch? The temperature switch? (which is pushbutton) What should be my next step in diagnosing this?