Kenmore Microwave 721.66993800 (72166993800, 721 66993800) Parts
Genuine Lg part
By: Lg
Part Number: 3B73362F
The Microwave Door Switch is an OEM replacement part for LG countertop microwaves. It monitors the door position electrically to prevent unsafe oven operation if ajar.
Symptoms of a bad door switch include:
- Inability to start or pause a cooking cycle unless securely latched
- Error messages about the door being open
- Inconsistent detection of open/closed door positions
- Unreliable contact functioning after extended use
Causes involve normal wear of electrical contacts and internals through many open/close uses. Exposure to moisture intrusion from spills may potentially damage sensitive switch circuitry over time as well.
This genuine LG replacement switch is also compatible with Sears/Kenmore microwaves.
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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$10.42
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$12.40
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$1.98
Genuine Lg part
By: Lg
Part Number: 6324W1A001L
The Magnetron is an OEM part for LG microwaves. It is responsible for generating the microwaves that cook or heat the food inside the appliance. The magnetron converts electrical energy into microwave radiation, ensuring efficient and even heating.
Causes of a bad magnetron can include prolonged use, electrical surges, or overheating. Over time, these factors can lead to the magnetron wearing out or failing completely.
Symptoms of a bad Magnetron include:
- The microwave not heating food
- Strange noises during operation
- Burning smell or smoke
- The microwave shutting off unexpectedly
This OEM LG part is also compatible with Sears/Kenmore models.
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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$128.75
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$153.21
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$24.46
Genuine Lg part
By: Lg
Part Number: 4970WRA001G
The Door Latch Spring is a genuine OEM part for LG microwaves. As a key component of the microwave, the door latch spring is responsible for providing the tension needed to securely close and latch the microwave door. It works behind the scenes to ensure a tight seal when the door is shut.
Symptoms of a bad door latch spring include:
- The microwave door not closing or latching properly
- Gaps appearing around the door seal when shut
- Difficulty opening and closing the door
Causes of a bad door latch spring can include wear and tear over time. Exposure to excessive door slamming can also place undue stress on the spring.
This genuine LG OEM replacement part is also compatible with Sears/Kenmore microwaves.
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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$9.02
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$9.92
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$0.90
Genuine Lg part
By: Lg
Part Number: AJS73149201
The Turntable Support is an OEM replacement part for LG microwaves. It fits under the cooking tray and is used to support the tray and to engage the rotating coupler. If your cooking tray will not turn or rumbles when it turns, check the support assembly for signs of wear or damage. If no damage can be seen, check the coupler for damage.
Causes of a bad turntable support include normal wear over extended use. Improper cleaning methods could potentially damage delicate support components.
Symptoms of a bad turntable support include:
- Wobbly or unstable turntable rotation
- Squeaking or grinding noises coming from below the turntable
- The inability of the turntable to rotate dishes consistently
This OEM LG part is also compatible with some Sears/Kenmore models.
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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$30.32
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$36.08
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$5.76
Genuine Lg part
By: Lg
Part Number: 6021W3B001V
The Diode is an OEM replacement part for LG countertop microwave models. Located internally on circuit boards regulating magnetron function, it precisely controls the electric current flow.
Causes of a bad diode involve thermal fatigue over time putting repetitive stress on sensitive semiconductor junctions. Microwave demands may accelerate failures.
Symptoms include:
- Intermittent cooking or complete failure to energize the tube
- Error codes appearing on the control panel display
- Buzzing or humming noises emitting from internal circuitry
This OEM LG part is also compatible with Sears/Kenmore microwaves.
Do-It-Yourself Stories from Customers like You
Our microwave made a "pop" sound and stopped working/ Daniel D. • Chesterfield , MO • September 12, 2020
I have a multimeter so I was able to check the fuse per website recommendations and it was blown. However, the capacitor on the microwave was also original so I elected to replace the capacitor, fuse, and the ground protect diode. The repair was very simple (making sure the capacitor was discharged before replacing) and the microwave is now up and running again. Excellent trade to buy $40 worth of parts rather than a new $400 microwave. One nit - Kenmore puts a screw in the back that...
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$15.95
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$18.82
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$2.87
Genuine Lg part
By: Lg
Part Number: 3390W1A044B
This is the glass turntable tray for a microwave. It provides a stable, food-safe surface and rotates with the turntable system to help heat food evenly.
- Holds dishes securely while the microwave runs and rotates for uniform heating
- Replaces a cracked, chipped, or missing glass plate
- Common symptoms: tray wobbles, won't rotate properly, uneven heating, or visible damage to the plate
- Designed to fit the microwave's turntable coupler and support for smooth operation
What's included: One glass turntable tray Installation notes:
- Unplug the microwave (or open the door to stop operation) and let the tray cool before handling
- Remove the old tray; align the new tray's center with the turntable coupler
- Ensure it sits flat and spins freely by hand before use
- Do not overtighten or force—tray should rest on the support/rollers
Do-It-Yourself Stories from Customers like You
Broken microwave plate Jose B. • San Antonio , TX • January 08, 2015
Contacted several local places, & on line. However none carried the part or made it difficult, which I realized they just didn't know how to look for the part I wanted. I contacted appliance parts, & they immediately found it & it was not as expensive as other places who did not stock it to begin with. They sent it right away, & I received it in less than 3 days. Thanks, I now know where to search,and who to recommend.
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$34.49
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$40.70
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$6.21
Genuine Lg part
By: Lg
Part Number: 6930W1A003Y
This temperature-sensing safety switch monitors heat inside the microwave and opens or closes its circuit at a set point. Replacing a failed thermostat helps protect the unit from overheating and restores proper fan or heating control. What it does:
- Monitors surface temperature where it is mounted (cavity, duct, or component)
- Opens/closes its electrical circuit at a specific threshold to prevent overheating
- Can interrupt power to heating components or signal the exhaust fan, depending on design
- Symptoms can include: unit shuts off until it cools, runs but won't heat, exhaust fan won't auto-cycle or runs constantly
What's included: 1 thermostat Install notes:
- Unplug the microwave; if over-the-range, remove it safely from the cabinet
- Discharge the high-voltage capacitor before servicing
- Note wire positions and transfer one lead at a time; ensure tight connections
- Mount firmly and flush to the original location/bracket for proper thermal contact
Do-It-Yourself Stories from Customers like You
Microwave shut off without usual beep at end of cycle no power to unit even though plugged in. James B. • Rocky Hill , NJ • November 17, 2017
Replace Thermostat on top of cavity. The thermostat is attached via 2 bending sheet metal tabs. Ours blew because the two wires connected to thermostat shorted, connectors melted. The short was caused by buildup of grease under thermal wire cover, shorting both leads. The unit is used heavily. This is the first thermostat to go. I had to replace wire connectors that connected to thermostat as well since the connectors were melted as well. Helpful hint. The grease build up was probably caused by...
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$11.95
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$14.34
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$2.39
Genuine Lg part
By: Lg
Part Number: 3B72244T
$5.18
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$5.70
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$0.52
Genuine Lg part
By: Lg
Part Number: MHL41184801
$26.04
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$28.64
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$2.60
Genuine Lg part
By: Lg
Part Number: 4026W2A014A
This replacement latch secures the appliance door or lid so it closes and engages reliably, helping the unit run and maintain proper operation. Ideal when the door won't stay shut or the appliance won't start. What it does:
- Secures the door/lid to the cabinet so the appliance can close properly
- Engages with the strike/keep to allow door-switch or lock mechanisms to operate
- Helps prevent leaks and heat loss caused by a door that won't seal
- Common symptom: appliance won't start or won't complete a cycle because the door fails to engage
What's included:
Install notes:
- Disconnect power (and water for washers) before starting any work
- Remove the access panel or door trim to reach the latch; use basic hand tools
- Check and adjust door alignment so the latch and strike meet squarely
- Test the door operation and run a short cycle to ensure reliable engagement
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$7.95
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$9.54
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$1.59
Out Of Stock
Usually ships within 4 - 14 days
Genuine Lg part
By: Lg
Part Number: 6930W1A003A
This thermostat controls refrigerator temperature to help maintain proper cooling and prevent spoilage. It replaces a failed or inaccurate temperature control to restore consistent operation. What it does:
- Senses internal temperature and signals the compressor to cycle on/off
- Helps keep food at steady, safe temperatures when functioning correctly
- Commonly replaces thermostats that cause warm temperatures or inconsistent cooling
- Works as a direct replacement when matching the OEM part number
What's included: One thermostat Install notes:
- Always disconnect power to the appliance before servicing to avoid shock or injury
- Handle the sensor and terminals carefully; avoid bending or damaging components
- Basic hand tools are typically required; follow your model's service manual for exact instructions
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$13.57
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$16.01
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$2.44
Out Of Stock
Usually ships within 4 - 14 days
Genuine Lg part
By: Lg
Part Number: 3536W1A003E
$5.18
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$5.70
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$0.52
Out Of Stock
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Genuine Lg part
By: Lg
Part Number: 3552W0A017A
$7.43
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$8.84
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$1.41
Out Of Stock
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Genuine Lg part
By: Lg
Part Number: 4B71028B
$7.43
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$8.84
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$1.41
Out Of Stock
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Genuine Lg part
By: Lg
Part Number: 2B72827R
$17.11
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$18.82
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$1.71
Out Of Stock
Usually ships within 4 - 14 days