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Lg Dishwasher LDS4921ST Parts

Best Seller
Dishwasher Check Valve
Genuine Lg part
By: Lg
Part Number: 5220ED4004A

Fix OE drainage errors and mid-cycle overfilling with this dishwasher check valve. Prevents water backflow into the tub. Easy 30-minute repair for most DIYers.

This part fixes the following symptoms
  • Will not drain
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Do-It-Yourself Stories from Customers like You 0e drainage error code   Christopher L. • Walnut Creek , CA • February 24, 2015

So all of a sudden the dishwasher stops working, "0E error"on the panel. Did some google searches and found that it might be the filter, which I did not know needed to be changed, or worse, the motor. Took the filter off per online tutorial (easy) and mopped up all the stagnant water. Poking around, I find the small rubber check valve that has broken. Had to fish it out with tweezers. Long story short, it was not the motor and I doubt it was the filter. It was this $1.87 rubber drainage... Read more

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Dishwasher Float Assembly
Genuine Lg part
By: Lg
Part Number: 4769DD2001A

Dishwasher not filling with water or leaking? The float assembly monitors water levels and prevents overfills. Moderate DIY repair, 1-2 hours.

Do-It-Yourself Stories from Customers like You Main wash motor froze and then burned out the controller too i had to buy a new motor so the completely assembled sump with all motors and valves and heating element was a real steal for +$10   Mike K. • Fort Collins , CO • May 01, 2015

I bought a new controller first and installed it. The exact replacement controller was no longer available and I had to modify two AC connectors that changed from 3 pins with two wires to two pins with two wires. This was not expected but I made it work just fine by getting the three pin connectors on the cable to fit the two pin by breaking out the center web in the board two pin and then shaving off the raised key plastic on the wires. Then on power up, I found that the wash motor did not... Read more

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Dishwasher Upper Spray Arm
Genuine Lg part
By: Lg
Part Number: 5249DD2001A

Replace your dishwasher's upper spray arm if cracked, broken, or clogged beyond cleaning. Installs in the top of the tub to spray water on the upper rack.

Do-It-Yourself Stories from Customers like You Top spray arm not spinning in lg dishwasher   Mark F. • San Carlos , CA • February 02, 2020

I replaced the upper nozzle guide, nozzle shaft and upper spray arm. I also replaced the pump gasket for good measure. Top rack dishes had not been cleaning properly. I first removed the filter assembly to inspect the main pump from above. It was clogged but after cleaning and reassembly I observed that while middle and bottom spray arms were changing position, the upper spray arm was not. I confirmed that water was flowing through the upper spray arm by placing some empty yogurt pots on a... Read more

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Dishwasher Detergent And Rinse Aid Dispenser Assembly
Genuine Lg part
By: Lg
Part Number: MCU61861001

Dispenser not opening or leaking rinse aid down the door? This assembly restores proper detergent release. Most DIYers complete installation in 30-60 minutes.

This part fixes the following symptoms
  • Will not dispense detergent
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Do-It-Yourself Stories from Customers like You Ne error code dirty silverware in upper third rack and door broken off soap dispenser.   Nathan M. • St. George , UT • July 27, 2019

I ordered a new vario motor and a soap dispenser. I turned off the water and the breaker, disconnected the water line and the power at the front base of the unit, disconnected the drain hose from the garbage dispenser, and pulled out the dishwasher and laid it on a blanket on its face. I unscrewed and removed the plainly visible vario motor on the bottom of the machine and removed the cam from the shaft. I then used a needle nose plier to carefully turn the D-shaft on the new motor to exactly... Read more

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Dishwasher Door Hinge Spring
Genuine Lg part
By: Lg
Part Number: 4970ED4004D

Counterbalances your dishwasher door for smooth opening and controlled positioning. Replace this spring if weakened, broken, or missing to restore tension.

Do-It-Yourself Stories from Customers like You Door hinge cable broke.   Joshua D. • Wellington , CO • August 12, 2019

I did not know which part broke, but it was very obvious once I moved the Dishwasher out of the cabinet. The "cable" is nylon cord, so I imagine this would be sacrificial part on every machine. Read more

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Dishwasher Upper Spray Arm Pivot Shaft
Genuine Lg part
By: Lg
Part Number: 4370ED3006A

Pivot shaft that supports and allows the upper spray arm to rotate in your dishwasher. Replace if broken, cracked, or worn to restore proper arm movement.

Do-It-Yourself Stories from Customers like You Top spray arm not spinning in lg dishwasher   Mark F. • San Carlos , CA • February 02, 2020

I replaced the upper nozzle guide, nozzle shaft and upper spray arm. I also replaced the pump gasket for good measure. Top rack dishes had not been cleaning properly. I first removed the filter assembly to inspect the main pump from above. It was clogged but after cleaning and reassembly I observed that while middle and bottom spray arms were changing position, the upper spray arm was not. I confirmed that water was flowing through the upper spray arm by placing some empty yogurt pots on a... Read more

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Dishwasher Dishrack Roller Holder Bracket
Genuine Lg part
By: Lg
Part Number: MEG62279201

This is a plastic bracket that holds the roller wheel on the dishwasher dish rack, allowing the rack to slide in and out smoothly on its track. It mounts to the side of the upper or lower rack and secures the roller in place. Replace this bracket if it is cracked or broken, causing the dish rack to tilt, jam, or not roll properly on its rails.

Do-It-Yourself Stories from Customers like You Broken and worn out parts in our dishwasher   Ellen C. • Jacksonville , FL • April 17, 2020

Replaced them. Read more

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Dishwasher Mounting Bracket Kit
Genuine Lg part
By: Lg
Part Number: 5001DD4001B

This mounting bracket kit secures your dishwasher to the countertop from above, preventing it from tipping forward when the door is opened. It replaces worn or missing brackets that allow the dishwasher to move or become unstable during operation.

Do-It-Yourself Stories from Customers like You Dishwasher counter brackets were broken   Dana D. • Richmond Hill , GA • January 17, 2016

I ordered new brackets to replace the broken ones. With the new brackets the instructions also showed me how I could also secure the dishwasher to the counter from each side. I replaced the brackets and secured the dishwasher to each side of the cabinets. The dishwasher is more secure now then ever. Read more

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Dishwasher Lower Spray Arm Assembly
Genuine Lg part
By: Lg
Part Number: AGB32598301

Lower spray arm assembly mounts at the bottom of the dishwasher tub and rotates to distribute wash water. Replace if cracked, clogged, or broken.

Do-It-Yourself Stories from Customers like You Bottom dish spray was not turning and cleaning dishes   Ken Z. • Blaine , WA • January 10, 2017

Replaced the parts per my order Read more

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Dishwasher Bushing
Genuine Lg part
By: Lg
Part Number: 4830ED4001B

Small sleeve bushing that supports pivoting or rotating joints in your dishwasher. Replace when worn, cracked, or causing excess friction between moving parts.

Do-It-Yourself Stories from Customers like You Missing brackets and screw hole cover   Brian S. • Ashland , MO • March 15, 2016

Thanks to LG NOT sending the parts THEY say are included with the dishwasher, I had to buy them in order to install the appliance. I sure hope the LG appliance performs better than their customer service. Very simple fix....bought the EXACT items needed from AppliancePartsPros.com and in just a matter of two days, had the parts needed. Amazing! Excellent experience. The fix was attaching the brackets to the cabinet and screwing it to the countertop. Also just popping the screw covers... Read more

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$11.60
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Dishwasher Thermistor Holder
Genuine Lg part
By: Lg
Part Number: 4930DD3002A

Secures the temperature sensor in place inside your dishwasher's sump area. Replace if the holder is cracked, broken, or missing to keep the thermistor properly positioned.

Do-It-Yourself Stories from Customers like You Bottom dish spray was not turning and cleaning dishes   Ken Z. • Blaine , WA • January 10, 2017

Replaced the parts per my order Read more

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Dishwasher Rack Tine Row
Genuine Lg part
By: Lg
Part Number: 3750DD2002B

Replaces a damaged, broken, or missing row of prongs on your dishwasher rack. Restores secure spacing to hold plates and dishes upright during cycles.

Do-It-Yourself Stories from Customers like You Broken and worn out parts in our dishwasher   Ellen C. • Jacksonville , FL • April 17, 2020

Replaced them. Read more

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Dishwasher Water System Gasket
Genuine Lg part
By: Lg
Part Number: 4986DD3003A

Creates a watertight seal between dishwasher pump, sump, or inlet components. Replace when leaking occurs during wash cycles to restore proper performance.

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Dishwasher Flow Sensor Assembly
Genuine Lg part
By: Lg
Part Number: 6501DD2001A

This sensor monitors water flow inside the dishwasher to ensure proper water circulation during wash and rinse cycles. It sends signals to the control board to regulate water intake and pump operation. Replace this sensor if the dishwasher displays error codes related to water flow, fails to fill properly, or stops mid-cycle due to incorrect flow detection.

Do-It-Yourself Stories from Customers like You Very little water was being let in to the tub. I had already replaced the inlet valve and that didn’t help   Kenneth H. • Sunrise Beach , MO • October 10, 2019

I replaced the float assembly. The float assembly was clogged with a soft sludgy material. It works perfectly now Read more

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Dishwasher Door Latch And Lock Assembly
Genuine Lg part
By: Lg
Part Number: 4026DD3001A

Fix a dishwasher door that won't stay shut or cycles that won't start. This door latch and lock assembly restores secure closure and cycle operation.

Do-It-Yourself Stories from Customers like You The door latch wasn't staying shut.   Jay M. • Washington , DC • January 25, 2022

Replaced the door latch & door lock. Went really well and the dishwasher is working now. Read more

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Switch,Micro
Genuine Lg part
By: Lg
Part Number: EBF64375202

The Micro Switch is an OEM part for LG dishwashers. It plays a crucial role in detecting when the door is securely closed prior to starting a cycle. This important safety feature prevents accidental exposure to hot water, detergent, and chemicals. 

Causes of a bad micro switch include degradation from years of repeated use, debris interfering with mechanisms, or damage from attempts to force or slam the dishwasher door closed.

Symptoms of a bad micro switch include:

  • Cycles failing to start despite a closed door
  • Hot water or steam visible escaping when running 
  • The dishwasher not detecting the closed door position
  • Error codes displayed related to door position sensors

This OEM LG part is also compatible with Sears/Kenmore. Replacing only when truly faulty helps ensure safe and reliable dishwasher function.
 

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  • Over 2.1 Million Parts In Stock Over 2.1 Million Parts In Stock
  • 2 Day Quick Delivery! 2 Day Quick Delivery!
  • 365 Day Return Policy! 365 Day Return Policy!
  • Repair ForumFree Tech Support!
  • Google Trusted Store Google Trusted Store