I researched my dishwasher model number on the AppliancePartsPros website. It identified two possible defective parts. After a visual inspection, I could see that my solenoid had overheated and was melting. The videos on the website showed me how to remove and replace the defective parts. I replaced the solenoid and armature. The actual parts replacement took less than one hour, but I had to remove and reinstall the dishwasher, so the total time spent was about 3 hours.