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Modern Maid
Dishwasher

Model # DDW550B/P1139735NB Official Modern Maid dishwasher

Here are the diagrams and repair parts for Official Modern Maid DDW550B-P1139735NB dishwasher, as well as links to manuals and error code tables, if available.

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Error Codes

Model diagram and schematic

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ALL PARTS
Showing 10 of 436 parts  |
Harness Cover R0905662
#8

Control panel assembly (dus900b/p1139733nb) (ddw950b/p1139737nb) (ddw950ww/p1139737nw) diagram

Harness cover

Part #R0905662

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

Drain R0903506
Drain

Part #R0903506

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

Unicouple As R0910119
#39

Ptub assembly (dcs450w/p1139734nw) diagram

Unicouple as

Part #R0910119

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

Roller & Stud, Upper Rack R0910079
#13

Interior tub assemblies (dcs450w/p1139734nw) diagram

Roller & stud, upper rack

Part #R0910079

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

Spray Arm Assembly R0910077
#32

Motor-pump mechanism (dcs450w/p1139734nw) diagram

Spray arm assembly

Part #R0910077

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

Screw, Vent Lever Mounting R0900040
#42

Door and control panel assembly (dcs450w/p1139734nw) diagram

Screw, vent lever mounting

Part #R0900040

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

Switch Bracket R0910068
#5

Control panel assembly (dus900b/p1139733nb) (ddw950b/p1139737nb) (ddw950ww/p1139737nw) diagram

Switch bracket

Part #R0910068

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

Escutcheon R0903029
Escutcheon

Part #R0903029

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

Cam, Detergent And Vent Trip R0907004
#28

Door and control panel assembly (dcs450w/p1139734nw) diagram

Cam, detergent and vent trip

Part #R0907004

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

Keeper And Fastener R0901515
#3A

Ptub assembly (dcs450w/p1139734nw) diagram

Keeper and fastener

Part #R0901515

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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How to clean and maintain your dishwasher

How to clean and maintain your dishwasher

Get tips for cleaning and maintaining 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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Top questions about Sears and Sears PartsDirect

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