Customer Questions and Answers for Wax Motor (Dishwasher Rinse Aid Dispenser) by Whirlpool

This wax motor is the actuator for the dishwasher's rinse aid dispenser, releasing rinse agent at the correct time in the cycle. Replacing a weak or failed unit restores consistent rinse aid dispensing and helps minimize spotting.

• Actuates the rinse aid dispenser by extending a plunger when energized
• Works with the control to meter rinse aid during the final rinse
• Failure symptoms can include rinse aid not dispensing, the level never dropping, and increased spotting/filming on dishes
• Dispenser may remain closed with no audible actuation during the cycle

• Disconnect power at the breaker and shut off water before servicing
• Remove the door panel to access the dispenser; label and disconnect wires
• Release the old motor and install the new one in the same orientation, ensuring it seats fully
• Run a test cycle to ensure the dispenser releases rinse aid