Customer Questions and Answers for Dishwasher Detergent Dispenser by Whirlpool

Tom, You'll need to separate the inner door liner from the outer door liner and disconnect the two wires from the solenoid. With a multi meter you would want to check for 800 to 1000 ohms resistance acroos the two terminals, if you have the resistance, the actuator should be OK, and you'll have to conduct the diagnosis or board output test, and check for 120 vac across the two wires to the actuator, to determine if you have a loose , broken wire or faulty control board WPW10084141. You have check for a detergent or deposit build up in the latch area of the detergent cup, correct. You'll find the tech data sheet, attached to the backside of the kickplate/lower access panel, and can run the tests. Thanks and Good Luck