Maytag Soap Dispenser Door Won't Open

This dishwasher has been trouble free until the soap dispenser door stopped opening. I’ve read in previous posts that replacing the wax motor usually fixes this. Not this time. After installing a new wax motor (which did not fix the problem) I tested the old one (by applying 120vac) and it works.

I’m not sure what to do next. It seems like the wax motor isn’t getting power, so a schematic would help. Can someone please provide a link.

Thanks a lot!

PS Does anyone need a like new wax motor - only used once!

Here are your parts
Replacement parts for MAYTAG DWU8860BAB | AppliancePartsPros.com

Here is a manual and a bulletin which may apply.
http://www.servicematters.com/maytag_library/docs/16007823.pdf
http://www.servicematters.com/maytag_library/docs/TDD-0011B-B.pdf

There was a recall on leaking rinse aid but I believe it only covered DWU9 units.

Thanks you for the info. The unit is working fine again. Turns out the problem was calcium or mineral deposits built up on the dispenser slider, pivot, ratiner and latch, causing it to bind. Took it all apart, cleaned each part, reassembled and we’re good!