587. is a D&M built Kenmore. The motor runs in one direction to wash and the motor stops and runs in the other direction to drain.
Dishwasher will not drain:
[*]Check for hose kinks or food plugging drain hose.
[*]Check pump impeller for damage
[*]Check pump motor for reversing during the pump out
[*]If you have recently installed a new garbage disposal, check knock-out plug at connection.
*Most* of this style didn't have a screen or such to check.