How to Troubleshoot & Replace Whirlpool AP6021947 / WPW10469575 Steam Vent

Upon removing door cover of KitchenAid dishwasher, discovered water dripping from the dishwasher vent. Ordered replacement from AppliancePartsPros. Took 15 minutes max to replace. Problem resolved. Interesting to note that we could not see any visual problems with the old vent. Must have been a sealing problem. 

Ordered replacement vent on Monday evening (4:00 p.m.). Received replacement vent next morning around 9:00 a.m.. Installed vent and washer worked perfect. Amazed at speed of delivery. I have used AppliancePartsPro before and will do so again. Thank you. Joe 

Replaced the door gasket.and the spray arm. 

Replaced the diverter motor which got the arms going. Getting to be an expert at that as this is the second one. Known leaking issue with them and they stop. Included was the needed grease which was a very nice touch. Also replaced the gasket on top with one from The Grommet Guru that will hopefully keep the leaks away as it has a spring inside it. Did not solve the vent error code with the vent part. Looks like the fan is corroded and have another on order.