detergent cup wouldn't open

ApplianceMaytag Dishwasher


Level of DifficultyA Bit Difficult

Time to do repair1- 2 hours

Age of ApplianceMore than 10 years

Tools Pliers
Screw drivers

David From Glen Rock, NJ

Feb 23, 2008

6 out of 10 people found this instruction helpful

Removed Torx (T20) screws around perimiter of inside cover. Lifted cover and inverted it, then disconnected the two terminals from the wax motor. Wire and motor terminals had green corrosion and entire motor/latch assembly was caked with accumulated detergent. After ensuring circuit was not hot, cleaned wire terminals by soaking ends (one a a time) in white vinegar, then water, then a spritz of WD-40. Removed old assmebly and reservoir, then thoroughly cleaned inside cover and vacuumed inside of dishwasher door. Took digital pics at each step of disassembly as a reference when reassembling.

Instructions provided with conversion kit are useless. Attached parts, motor, and gasket to new assembly first, using old assembly as a guide. then attached to cover before replacing reservoir. Inserted plunger into reservoir and twisted to secure. Installed o-ring and mounted reservoir; slot on reservoir mates with tab on assembly, and white lever arm actuates plunger. Reattached wires to motor and replaced inside cover. Ran a wash cycle and confirmed cup lid opened.

Note that my model only had one wax motor, so new assembly was identical to old and the Y-cable was not needed. As another commenter pointed out, latch assembly will not appear to work correctly manipulated by hand until you remember that cup lid holds latch at midpoint of travel at start of wash.

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Diagrams and Parts List for this repair

Part PhotoPart DescriptionPriceAvailability

USE WPL 12001867 (Now subbed to Dual Wax Motor Conversion Kit)

Part Number: PS2003400

In Stock

Rinse Aid Knob (Now subbed to Rinse Aid Knob)

Part Number: PS2344469

In Stock