Kenmore Microwave 721.62109200 (72162109200, 721 62109200) 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: 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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$7.43
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$1.49
Genuine Lg part
By: Lg
Part Number: 1TTL0402818
This truss head tapping screw secures panels, brackets, and covers in your appliance. Replacing a missing or damaged fastener restores a snug fit, reduces vibration, and helps keep components properly aligned for reliable performance.
- Provides low-profile holding power; wide truss head helps secure thin panels and trim
- Replaces lost, stripped, or corroded screws at the original mounting points
- Helps eliminate rattling, vibration, or loose handles/covers
- Addresses situations where a screw will not tighten or backs out during use
What's included: 1 truss head tapping screw Install notes:
- Disconnect power; shut off water/gas if applicable before servicing
- Align parts and hand-start threads to avoid cross-threading
- Tighten until snug; do not overtighten to prevent stripping
- If the receiving hole is damaged, for repair before installing the new screw
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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$2.18
Genuine Lg part
By: Lg
Part Number: 3052W1A002A
This canopy resistor regulates current to a range-hood or canopy fan circuit to help the blower run at the correct speeds. Replacing a failing resistor can restore proper fan speed control and stop intermittent operation. What it does:
- Controls electrical resistance in the canopy/blower circuit to help regulate fan speeds.
- Helps prevent the motor from running only on a single speed or from failing to start at selected speeds.
- Can cause symptoms such as inconsistent fan speeds, no response from speed controls, or occasional fan cutoff.
- Works with the hood's wiring and control switch to deliver the correct voltage to the fan motor.
What's included: One canopy resistor. Install notes:
- Disconnect power to the appliance before accessing the canopy or electrical connections.
- Inspect wiring and connectors for heat damage or corrosion; replace harness or terminals if damaged.
Do-It-Yourself Stories from Customers like You
Arcing from the magnetron intermittantly Peter V. • Georgetown , KY • September 29, 2015
I searched the web and it seemed that many people had a similar problem when gunk got on the waveguide plate/cover. When I removed the cover, one of the plastic latches broke so rather than just trying to clean the plate, I had to order a new one. The new one arrived in just a couple of days, I put the plate on and at least for the last few days, no more arcing. <$10 fix for my over the stove microwave.
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$7.43
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$1.34
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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$9.02
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$0.90
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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$9.92
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$0.90
Genuine Lg part
By: Lg
Part Number: 1TTL0402416
$7.43
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$8.84
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$1.41
Genuine Lg part
By: Lg
Part Number: 1TTL0403818
$5.18
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$5.70
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$0.52
Genuine Lg part
By: Lg
Part Number: 4510W3A012A
$7.84
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$8.62
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$0.78
Genuine Lg part
By: Lg
Part Number: 6912W3B002K
This replacement oven light bulb restores clear visibility inside the oven cavity. It brings back bright, reliable illumination so you can check doneness at a glance—using the door switch or light button—without opening the door or losing heat.
- Lights the oven cavity when the door opens or when the light button is pressed
- Helps you monitor cooking progress without interrupting cooking
- Typical symptoms: no light, intermittent flickering, dim light, or a blackened/broken bulb
- A failed bulb is the most common cause
What's included: 1 oven light bulb Install notes:
- Disconnect power or switch off the circuit breaker; allow the oven to cool completely
- Remove the lens/cover per your model; unscrew or unclip the bulb from the socket
- Handle the new bulb by the base; avoid touching the glass on capsule/halogen styles
- Do not exceed the bulb type/wattage specified for your model; tighten gently and test operation
Do-It-Yourself Stories from Customers like You
The glass tray from the microwave had broken and the interior light bulb was burnt out Rebecca H. • Linesville , PA • May 27, 2015
The tray was an easy fix as I looked up Kenmore Microwave and ordered the replacement. The light bulb was a little trickier as to replace it you must have a special screwdriver that has a 5-pointed bit with a hole in the middle. This is because nothing else is safely serviceable on the microwave. I unplugged the microwave and moved it to my kitchen table to do the work. The entire outside case had to be removed to access the light bulb which is on the upper right side. You must unplug the...
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$3.89
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Genuine Lg part
By: Lg
Part Number: 1SBF0402418
A Tap-Tite binding-head screw used to fasten appliance panels and components where a self-tapping metal thread is required. Replaces missing or damaged fasteners to restore secure assembly and reduce vibration or rattling. What it does:
- Creates its own mating thread in thin sheet metal for a secure hold without a nut.
- Holds panels, brackets, and trim in place to prevent looseness or movement.
- Commonly used where stripped, missing, or broken screws cause rattling, misalignment, or parts that won't stay attached.
- Compatible with standard screwdrivers or nut drivers sized to the binding-head.
What's included: One Tap-Tite binding-head screw Install notes:
- Disconnect power and unplug the appliance before working on it.
- Use the correct driver bit to avoid cam-out or head damage.
- Start straight and apply steady pressure; avoid overtightening to prevent stripping the formed threads.
- If the original hole is badly damaged, assess for repair or use of a larger fastener as needed.
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$2.27
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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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$2.44
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Genuine Lg part
By: Lg
Part Number: 1SZZW2A002A
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$0.32
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Genuine Lg part
By: Lg
Part Number: 3720W0C031B
This electronic control panel is the front-facing user interface that operates your appliance's functions and settings. It restores button/touch control and display feedback so cycles and options can be selected reliably. What it does:
- Replaces a faulty or unresponsive control surface so buttons or touchpads register user input
- Restores display indicators and status lights used for cycle selection and diagnostics
- Helps stop intermittent or incorrect cycle starts caused by damaged controls
- Common symptom: buttons don't respond, display is blank or shows error codes tied to the control board/interface
What's included:
- One control panel assembly
Install notes:
- Disconnect power before attempting replacement to avoid shock or damage
- Handle the panel carefully to avoid scratching display surfaces or damaging ribbon connectors
- May require removal of the top or front console and disconnecting ribbon/screw fasteners; keep screws and connectors organized
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$20.33
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$0.91
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Genuine Lg part
By: Lg
Part Number: 3828W5A2473
$32.35
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$4.17
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Genuine Lg part
By: Lg
Part Number: 3850W1D065A
$6.72
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$7.04
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$0.32
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