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Modern Maid
Dishwasher

Model # MDU300CB/P1188304W Official Modern Maid dishwasher

Here are the diagrams and repair parts for Official Modern Maid MDU300CB-P1188304W dishwasher, as well as links to manuals and error code tables, if available.

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  • In the search box below, enter all or part of the part number or the part’s name.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Error Codes

Model diagram and schematic

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ALL PARTS
Showing 10 of 191 parts  |
Push Button R0903593
#1B

Control panel diagram

Push button

Part #R0903593

The manufacturer no longer makes this part, and there's no substitute part

Spray Arm And Hub Pinion R0905555
#9

Water distribution components diagram

Spray arm and hub pinion

Part #R0905555

The manufacturer no longer makes this part, and there's no substitute part

Support Assembly R0905633
#35

Tub assembly diagram

Support assembly

Part #R0905633

The manufacturer no longer makes this part, and there's no substitute part

Screw 8-18 X 5/16 R0900053
#1C

Door and door trim diagram

Screw 8-18 x 5/16

Part #R0900053

The manufacturer no longer makes this part, and there's no substitute part

Insert, Service Panel R0903526
#5B

Door and door trim diagram

Insert, service panel

Part #R0903526

The manufacturer no longer makes this part, and there's no substitute part

Pinion Gear Washer R0900504
#11

Water distribution components diagram

Pinion gear washer

Part #R0900504

The manufacturer no longer makes this part, and there's no substitute part

Float Dome R0905511
#39

Tub assembly diagram

Float dome

Part #R0905511

The manufacturer no longer makes this part, and there's no substitute part

Roller & Stud Assembly R0910004
#42

Tub assembly diagram

Roller & stud assembly

Part #R0910004

The manufacturer no longer makes this part, and there's no substitute part

Roller R0910005
#1

Upper/lower racks diagram

Roller

Part #R0910005

The manufacturer no longer makes this part, and there's no substitute part

Grader, Nut R0905563
#40

Water distribution components diagram

Grader, nut

Part #R0905563

The manufacturer no longer makes this part, and there's no substitute part

Most common symptoms to help you fix your dishwashers

Choose a symptom to see related dishwasher repairs.

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Why does my dishwasher door drop open too fast?

Main causes: broken door spring, damaged or broken door hinge…

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Why don't my dishes get dry?

Main causes: not using rinse aid, rinse aid dispenser failure, broken heating element, malfunctioning vent, drying fan f…

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Why won't my dishwasher fill?

Main causes: water supply problem, stuck overfill float, clogged water inlet valve screen, water inlet valve failure…

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Why won't my dishwasher start?

Main causes: light switch beside the sink turned off, lack of power, bad dishwasher door switch, control system failure,…

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Why isn't my dishwasher getting dishes clean?

Main causes: improper loading, low water temperature, improper detergent dosage, detergent dispenser failure, spray arm …

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Why is my dishwasher noisy?

Main causes: glass or popcorn kernel stuck in the chopper blade, drain line vibrating against the cabinet, debris in was…

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Why won't my dishwasher drain?

Main causes: clogged kitchen sink drain, clogged drain hose, drain check valve damaged, drain pump failure, control syst…

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Why can't I adjust the dishwasher rack height?

Main cause: damaged rack height adjuster…

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Why is my dishwasher leaking?

Main causes: damaged or stuck spray arm, leaking door seal, damaged door hinge, leaky heating element water seal, cracke…

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Most common repair guides to help fix your dishwashers

These step-by-step repair guides will help you safely fix what’s broken on your dishwasher.

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How to replace a dishwasher water inlet valve

How to replace a dishwasher water inlet valve

If your dishwasher fills constantly or won't fill at all, the water inlet valve has failed. You can replace it in about …

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Repair difficulty
Time required
 30 minutes or less
How to replace a dishwasher detergent dispenser

How to replace a dishwasher detergent dispenser

Dishes need dish detergent to get clean. Learn how to replace a dishwasher detergent dispenser with easy step-by-step i…

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Repair difficulty
Time required
 30 minutes or less
How to replace a dishwasher door outer panel

How to replace a dishwasher door outer panel

If your dishwasher door is dented or you want it to match your cabinets or other appliances, this guide shows how to rep…

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Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your dishwashers

Use the advice and tips in these articles and videos to get the most out of your dishwasher.

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5 Holiday Cleaning Tasks Essential to Boosting Your Home’s Image

5 Holiday Cleaning Tasks Essential to Boosting Your Home’s Image

Get tips on completing essential holiday cleaning tasks to brighten your home.…

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How to enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

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Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

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