The part(s) or condition(s) listed below for the symptom Dishwasher dispenser not dispensing soap are ordered from most likely to least likely to occur. Check or test each item, starting with the items at the top of the page.
The main control board provides power to nearly every component of the dishwasher. If there is a problem with the main control board, it might not send voltage to the detergent dispenser, preventing the dispenser from opening. However, this is not likely the case. Control boards are often misdiagnosed—make sure you check more commonly defective parts before replacing the main control board.