From https://www.justanswer.com/ythi JustAnswer Customer: My dishwasher, model WDF520PADM7, Type No: 583-0, Serial #:F64283513 is malfunctioning. JustAnswer Customer: Water is being added, but the top and bottom "circulator arms do not sound like they are rotating and washing the dishes. JustAnswer Customer: I can hear water being fed on the start and it drain out, but nothing is being washed. JustAnswer Customer: The unit is less than 2 years old. JustAnswer Customer: My last Whirlpool dishwasher functioned flawlessly for over 20 years. Pearl Wilson: Assistant: Can you guesstimate how old your Whirlpool is? Pearl Wilson: Assistant: And just to clarify, what's the exact model? JustAnswer Customer: My dishwasher, model WDF520PADM7, Type No: 583-0, Serial #:F64283513. Pearl Wilson: Assistant: Do you plan on doing the work yourself? JustAnswer Customer: Not really, unless it is a simple solution Pearl Wilson: Assistant: Anything else we should know to help you best? JustAnswer Customer: no Tyler Z.: Home Appliance Technician: Hello. Tyler Z.: Home Appliance Technician: My name is * * I'll be helping you with your appliance question today. Tyler Z.: Home Appliance Technician: Please wait a few moments while I review your question. Tyler Z.: Home Appliance Technician: If the dishwasher will fill with water and drain but it won't wash, it means something is either jamming the circulation pump impeller, or the pump is bad. Tyler Z.: Home Appliance Technician: You would need to uninstall the entire dishwasher and remove the circulation pump in order to check for a blockage in the impeller. Tyler Z.: Home Appliance Technician: If you find debris blocking the impeller, remove it and you should be good to go. Tyler Z.: Home Appliance Technician: Otherwise replace the circulation pump. Tyler Z.: Home Appliance Technician: Below is a link to the part as well as a video on how to remove it. Tyler Z.: Home Appliance Technician: We are on the honor system here. Tyler Z.: Home Appliance Technician: If you need anything else, just let me know. Tyler Z.: Home Appliance Technician: You can continue asking follow-up questions at no additional charge after rating my service if you still need assistance. Pearl Wilson: Assistant: If you have a home improvement or appliance question and want to chat with an expert now visit justanswer.com/ythi