The automatic door for the soap dispenser for our dish washer would no longer open and release the soap. Inspection of the unit showed a burned area on the back of the plastic dispenser (the back side inside the door). We ordered a new soap dispenser, thinking it would be a plug and play no-brainer and I would have it going again. No such luck. Installed the new soap dispenser and no change. Diswasher works fine other than the soap door wont open and release the soap. I traced all the wires and have found no visible sign of breakage or burns. Rather than just blindly buying part after part, it would be great to get some help with diagnosis. Dishwasher is KithchenAid model KUDP02CRBS2.