Leaking Dishwasher Door and Excess Steam

Brand:Kitchenaid
Model Number:KUDS40CVSS4
Main Symptom:Leaking front door, excessive steam, top rack not cleaning
What happens & when: Water leaks from the front of the dishwasher, at the bottom of the door when running and also from the bottom of the control panel insert. There is excessive steam build up at the top of the door on the left side. Top rack is not cleaning dishes.

Error Code (if any):N/A
Parts or tests already tried:

  1. STEAM - Replaced the Air Vent and Air Vent Gasket. Dishwasher is in our rental, so not able to assess day to day if the steam situation has improved. Waiting for pictures from tenants.

  2. LEAK - Cleaned all areas when door was off for Air Vent replacement. Possibly rust at the bottom of the door? See photos.

  3. TOP RACK - Cleaned area around food chopper - cleared bits of plastic from disintegrating silverware basket. Cleaned underside of pump cover, filters, water supply tubes. Waiting for pictures and updates from tenants.

NOTE: Videos show view from under the door - from the floor looking up.
Photos / video link: Dishwasher - Kitchenaid KUDS40CVSS4 - Google Drive

Do the upper and middle spray arms spin easily by hand?

Yes. Both arms spin easily.

That’s going to be an issue with the manifold actuator WP8572661 which has been discontinued by the manufacturer and is no longer available for purchase. The manufacturer does not list a compatible substitute or replacement part. It isn’t shifting to allow water to go all the way up the feed tube, this would also cause leakage issues since the lower spray zone would keep getting water that is meant for the upper arms and is spraying the water at the door.

We show the part as out-of-stock on our page, but it has been discontinued. I will have that updated shortly.

https://www.appliancepartspros.com/whirlpool-actuator-asm-manifold-wp8572661-ap6013433.html

Thanks Rory.

Is this the same part we see on the schematic here, in the insert box numbered 27?

https://www.appliancepartspros.com/tub-frame-parts-for-whirlpool-kuds40cvss4.html

Because the part is no longer available, do you recommend a new dishwasher? The Kitchenaid is about 15 years old. If so, any brand you recommend to buy and/or stay away from?