Mark B Rochester , MI January 26, 2015 Appliance: KitchenAid Undercounter Dishwasher KUDT03FTPA3 Kitchenaid Dishwasher Kudt03ftpa3: Detergent door was not operating. How to replace Control Board. At first I noticed that the detergent door motor was broken, as the sidewall of the motor had split open and some sort of epoxy-like material had oozed out of it. After replacing the motor the detergent door still did not function, so I replaced the control board, even though it appeared to look as new. That fixed the problem and we're back to washing dishes in the machine! 3 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes