Kenmore Microwave 721.79209010 (72179209010, 721 79209010) Parts
Genuine Lg part
By: Lg
Part Number: 3B73362F
Microwave won't start or runs with door open? Failed door switch prevents safe operation. Simple DIY fix with basic tools in under 30 minutes.
This part fixes the following symptoms
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No heat
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Won't start
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shuts off after a few seconds
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Do-It-Yourself Stories from Customers like You
Interior light and turntable failed at the same moment. Stacey B. • New Bern , NC • February 01, 2021
Knowing the odds of 2 failures occurring at the same exact time was unusually high, I just searched your site for what other broken items might affect these two failures. Came up with next control item upstream and tallied that item failure with percentages of successful repairs, (4 mins.) door safety switch.
Since I had to change out the most likely of the 3 and since I was already was going to be into the switch panel I ordered all 3 and swapped them all out to cover my butt, as they were...
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$19.45
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$23.34
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$3.89
Genuine Lg part
By: Lg
Part Number: 3B74133Q
The Time Delay Fuse is an OEM part for LG microwaves. This fuse provides a safety mechanism by delaying the flow of electricity, protecting the microwave's electrical components from power surges and ensuring the appliance operates safely. It helps to prevent immediate damage in the event of a power surge or electrical fault, thus prolonging the lifespan of the microwave.
Over time, the time delay fuse can become damaged due to electrical surges, wear and tear, or faulty connections. If the fuse blows, it can disrupt the microwave’s ability to function correctly.
Symptoms of a bad time delay fuse include:
- The microwave not turning on
- No response from the microwave control panel
- The microwave stopping unexpectedly during operation
- Electrical issues or blown circuits in the microwave
This OEM LG part is also compatible with Sears/Kenmore models.
Do-It-Yourself Stories from Customers like You
Lg microwave oven did a loud pop and quit working Stephen C. • Cape Coral , FL • March 18, 2015
Called AppliancePartsPros because of good experiencing diagnosing problem with a dishwasher repair. We definitely are modest income amateurs! Same excellent response to our questions. Three possible causes. Used easy search menu to fine replacement parts. Bought all three, knowing that if all not needed, the others could be returned (within 365 days) for refund. Replaced the capacitor successfully after calling to get more help with a couple of places where we got stuck. Oven now works...
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$11.51
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$13.70
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$2.19
Genuine Lg part
By: Lg
Part Number: 6324W1A001L
Microwave won't heat but runs normally? A failed magnetron is the likely cause. This part generates the microwaves that cook food. Moderate DIY repair.
Do-It-Yourself Stories from Customers like You
Didn't heat. Harry W. • Maple Park , IL • January 21, 2018
My son told me that almost all the microwave ovens that came into the repair center he worked at, 15 years ago, had a defective magnetron. I ordered a magnetron, and sat back until one shipped. The one that came, the first time, was in a small factory cardboard box, which was in a large bubble-pak Fedex envelope; which didn't show any signs of abuse. Inside, however, the factory box was beat up. Removing the magnetron, I noticed that the socket, as well as its' pins, was bent, and loose in the...
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$127.67
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$151.93
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$24.26
Genuine Lg part
By: Lg
Part Number: 4970WRA001G
Microwave door won't stay closed or latch? This door latch spring provides tension to secure the door shut. DIY repair in under 10 minutes with video help.
Do-It-Yourself Stories from Customers like You
Lg microwave door would not latch closed Audrey S. • Rochester , NY • February 05, 2018
Ordered door latch part and new spring.
You Tube video helped me identify what I needed. I tried the fix recommended and it didn't work so I ordered the parts. It took less than 5 minutes to switch out the old for the new. If the door doesn't latch, you can't run the microwave and it's key. It wasn't an expensive or hard fix to get my microwave up and running again. So pleased with AppliancePartsPros for having what I needed and being reasonable about pricing. Turnaround time was excellent!
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$7.95
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$9.54
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$1.59
Genuine Lg part
By: Lg
Part Number: AJS73149201
Replaces cracked, worn, or broken turntable support ring in your microwave. Supports the glass tray and engages the rotating coupler mechanism.
Do-It-Yourself Stories from Customers like You
The rotary base that goes under the base plate was worn and unstable. Keith C. • Tacoma , WA • April 22, 2017
Replaced the part in a few seconds. Working fine now.
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$30.95
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$36.83
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$5.88
Genuine Lg part
By: Lg
Part Number: 3390W1G006B
Glass turntable tray that rotates inside your microwave. Replace if cracked, chipped, broken, or missing to restore safe, even cooking and protect your oven.
Do-It-Yourself Stories from Customers like You
The glass turntable and rotating rod part underneath or broken and needed to be replaced. Pozene M. • Charlotte , NC • November 20, 2017
I ordered the parts and replaced them.
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$65.24
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$76.98
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$11.74
Genuine Lg part
By: Lg
Part Number: 3501W1A053A
Bracket that mounts and aligns the door latch switches inside your microwave. Replace if cracked, broken, or clips are damaged from prior switch removal.
Do-It-Yourself Stories from Customers like You
Would not cook and read "door" on lcd readout Robert B. • Fredonia , NY • June 10, 2020
REPLACED THE DOOR SWITCHES HOLDER ASSY---LABELED HOLDER ASSEMBLY LOCKER, WHICH CAME WITH ALL 3 DOOR SWITCHES ALREADY MOUNTED IN THE HOLDER ASSEMBLY, IT WAS EASY TO REPLACE, JUST 2 SCREWS BUT YOU DO NEED TO PULL THE FRONT PANEL ASSY FORWARD BY REMOVING 1 SCREW AND LIFTING IT UP AND OUT WHOLE JOB TOOK ABOUT 1/2 HOUR appliancepartspros.com GAVE QUICK DELIVERY MUCH APPRECIATED BOB B.
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$32.95
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$38.88
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$5.93
Genuine Lg part
By: Lg
Part Number: 4510W3L003A
Links the door button to the latch mechanism for smooth opening. Replace if your lever is cracked, broken, or worn to restore reliable door operation.
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$13.61
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$16.06
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$2.45
Genuine Lg part
By: Lg
Part Number: 1TTL0402818
Truss head tapping screw secures panels, brackets, and covers in appliances. Replaces missing or damaged fasteners to restore snug fit and alignment.
Do-It-Yourself Stories from Customers like You
Broken door handle on lg over range microwave William M. • Town Creek , AL • June 29, 2017
Removed old broken door handle per video link on AppliancePartsPro.com. Installed new handle with no issues. <10 minute job at best.
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$11.45
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$13.63
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$2.18
Genuine Lg part
By: Lg
Part Number: 0CZZW1H004C
Microwave not heating or sparking inside? This high voltage capacitor stores power for the magnetron. Common repair taking 30-45 minutes with care.
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$29.95
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$35.64
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$5.69
Genuine Lg part
By: Lg
Part Number: 1TTG0402422
This is a truss-head tapping screw used to secure trim, panels, and small assemblies on compatible LG appliances. It provides a low-profile, wide-bearing head that helps hold parts flush and resist pull-through. What it does:
- Fastens plastic and sheet-metal components where a self-tapping thread is needed
- Truss head spreads load to prevent damage to soft or thin materials
- Helps secure control panels, brackets, or trim pieces that require a low-profile head
- Common replacement when original mounting screws are missing, stripped, or corroded
What's included:
- One truss-head tapping screw
Install notes:
- Use the correct screwdriver bit and moderate torque to avoid stripping the screw or workpiece
- Start threading straight and let the screw form threads without forcing at an angle
- Disconnect power and follow appliance-specific service safety procedures before working internally
- Replace any damaged mating threads or clips for a secure fit
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$7.43
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$8.92
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$1.49
Genuine Lg part
By: Lg
Part Number: 4B70188C
This is a replacement screw used to secure appliance components and panels. It restores proper fastening where a stripped, missing, or damaged screw causes loose parts or rattling. What it does:
- Fastens panels, trim, or internal components to maintain structural fit
- Helps stop vibration-related noise from loose assemblies
- Replaces missing or corroded screws that prevent proper closures
- Restores secure mounting after repairs or disassembly
What's included: One screw Install notes:
- Use the correct screwdriver or bit to avoid stripping the head
- Tighten until snug—do not over-torque to prevent thread damage
- Keep small parts away from children and pets
- Disconnect power or water before accessing internal parts
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$9.02
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$9.38
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$0.36
Genuine Lg part
By: Lg
Part Number: 1TTL0402416
Mounting screw for microwave installation and panel assembly. Replace if stripped, missing, or damaged during maintenance. Essential hardware component.
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$7.43
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$8.77
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$1.34
Genuine Lg part
By: Lg
Part Number: 1TTL0403818
Replacement mounting screw for microwave installation and assembly. Use when original screws are lost, stripped, or damaged during service or relocation.
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$3.67
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$4.37
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$0.70
Genuine Lg part
By: Lg
Part Number: 4026W2A016A
Microwave runs with door open or won't start? A faulty door latch prevents the interlock switches from engaging. This replacement latch restores safe operation.
Do-It-Yourself Stories from Customers like You
The door latch broke when the kids were fighting over the microwave Bart M. • Clarksville , TN • August 29, 2014
Determined which part was broken and entered the model number into the search window. My part was on the list of available parts. Thanks AppliancePartsPros.com!
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$11.95
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$14.22
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$2.27
Out Of Stock
Usually ships within 4 - 14 days
Genuine Lg part
By: Lg
Part Number: 3052W2A021C
Molded resin cover restores a clean look while protecting internal components. Replace your cracked, broken, or missing cover to keep parts shielded.
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$11.95
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$14.34
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$2.39
Out Of Stock
Usually ships within 4 - 14 days