My Maytag dishwasher soap dispenser stopped releasing and it wasn’t really a big deal since you could just put the soap in beforehand without using the timed release. I assumed the problem was the actuator which releases the spring loaded lid. My model was PDB3600AWE and the actuator part number is 902899. I opened up the panel to confirm the correct part (few videos on youtube) and ordered a new one from ebay. When I went to install it, I noticed the wire going to the part was cut near the door hinge. This damage was likely the problem and not the actuator itself. Resoldering the wire confirmed the old actuator was working. To test the actuator before suspecting it is bad, the resistance of the new one is around 2.5K ohms.