LG
Dishwasher

Model #LDF7551WW Official LG dishwasher

Here are the diagrams and repair parts for LG LDF7551WW dishwasher, as well as links to manuals and error code tables, if available.

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Owner’s manual

Showing 10 of 115 parts

Dishwasher Dishrack Assembly, Lower (replaces 3751DD1001B, 3751DD1001C)#A140

Rack assembly parts Diagram

Dishwasher dishrack

Part #3751DD1001B
Replaced by #3751DD1001J
?
Manufacturer substitution
This part replaces 3751DD1001B. Substitute parts can look different from the original.
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Dishwasher Noise Filter#A160

Base assembly parts Diagram

Dishwasher noise filter

Part #6201EC1006L
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Dishwasher Door Cable#F013

Tub assembly parts Diagram

Dishwasher door cable

Part #4933DD3001B
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Dishwasher Dishrack Roller, Lower#A142

Rack assembly parts Diagram

Dishwasher dishrack roller, lower

Part #4581DD3003B
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Dishwasher Diverter Motor (replaces 4681ED3001B)#M026

Sump assembly parts Diagram

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Washer Drain Hose#A130

Exploded view parts 2 Diagram

Dishwasher drain hose

Part #AEM69493805
Replaced by #AEM69493808
?
Manufacturer substitution
This part replaces AEM69493805. Substitute parts can look different from the original.
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Dishwasher Tub Gasket#F132

Tub assembly parts Diagram

Dishwasher tub gasket

Part #3920DD3005A
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Dishwasher Dishrack, Upper#A151

Rack assembly parts Diagram

Dishwasher dishrack, upper

Part #3750ED1005D
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Dishwasher Water Inlet Valve#M210

Base assembly parts Diagram

Dishwasher water inlet valve

Part #5221DD1001C
Replaced by #5221DD1001E
?
Manufacturer substitution
This part replaces 5221DD1001C. Substitute parts can look different from the original.
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Dishwasher Filter, Lower#M074

Sump assembly parts Diagram

Dishwasher filter, lower

Part #MDJ62185601
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Symptoms common to all dishwashers

Choose a symptom to see related dishwasher repairs.

Main causes: broken door latch, tripped circuit breaker, broken heating element, faulty vent fan, sensor failure, control system problem
Main cause: damaged rack height adjuster
Main causes: damaged or stuck spray arm, leaking door seal, damaged door hinge, leaky heating element water seal, cracked water supply line
Main causes: clogged kitchen sink drain, clogged drain hose, drain check valve damaged, drain pump failure, control system problem
Main causes: water supply problem, stuck overfill float, clogged water inlet valve screen, water inlet valve failure
Main causes: glass or popcorn kernel stuck in the chopper blade, drain line vibrating against the cabinet, debris in wash pump or drain pump
Main causes: broken door spring, damaged or broken door hinge
Main causes: not using rinse aid, rinse aid dispenser failure, broken heating element, malfunctioning vent, drying fan failure
Main causes: light switch beside the sink turned off, lack of power, bad dishwasher door switch, control system failure, wiring problem

Repair guides common to all dishwashers

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

October 1, 2016
By Lyle Weischwill
How to replace a dishwasher door latch assembly

If the dishwasher door doesn't click shut, a broken door latch is a likely cause. Follow these instructions to replace it yourself.

Repair difficulty
Time required
 30 minutes or less
How to replace a dishwasher user interface control

The user interface control houses the selection buttons and display. If it fails, you can't select the cycle and settings. Follow these instructions to replace it yourself.

Repair difficulty
Time required
 30 minutes or less
April 1, 2014
By Lyle Weischwill
How to replace a dishwasher thermal fuse

A completely dead control panel often indicates that the thermal fuse on the electronic control board is blown; follow these steps to replace a blown thermal fuse in your dishwasher.

Repair difficulty
Time required
 15 minutes or less

Articles and videos common to all dishwashers

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

November 13, 2022

7 Tips to Get Your Dishwasher Ready for the Holidays

By Lyle Weischwill

Find professional tips that can help you get your dishwasher ready for the holidays.

December 23, 2021

How to reset a Whirlpool dishwasher

By Lyle Weischwill

Learn how to reset a Whirlpool dishwasher when its control freezes up.

April 10, 2020

Cleaning your appliances after a drinking water advisory

By Julie Riebe

Find out how to clean and flush household appliances once a boil water advisory is lifted.