Whirlpool dishwashers have one or two door springs, depending on the model of the dishwasher. The spring, connected from the dishwasher door to the frame of the dishwasher, prevents the door from slamming open. The spring also allows you to close the dishwasher door with a minimum amount of effort. If the spring comes unhooked or stretches, you must remove the lower panel of the dishwasher to either reconnect or replace it.
Turn off the power to the dishwasher by turning off the dishwasher breaker in your service panel.
Remove the screws securing the lower panel on the bottom of the dishwasher. If your model of Whirlpool dishwasher has two panels, remove the bottom panel first and then remove the upper-bottom panel.
Locate the spring, which is either on the left or right side of the dishwasher frame, depending on model.
Hook the spring back onto one of the middle spring holes on the frame of the dishwasher, or onto the door pulley, if still in tact.
Remove the old spring and install an new spring onto the door pulley and the frame of the dishwasher if the old spring is damaged beyond repair. When installing, connect the longer spring-arm to the pulley.
Open the dishwasher door and test the resistance. The door should not fall too quickly, but should also not close on its own. Adjust the placement of the spring until the door opens and closes properly.
Replace the lower panel or panels and secure using the mounting screws that were removed.
Turn the dishwasher breaker back to the "On" position to restore power.