Skip to Content
  • 2 Day Quick Delivery! 2 Day Quick Delivery!
  • 365 Day Return Policy! 365 Day Return Policy!
  • 15 million satisfied customers 15 million satisfied customers
  • Over 2.1 Million Parts In Stock Over 2.1 Million Parts In Stock
  • Repair ForumFree Tech Support!
  • Google Trusted Store Google Trusted Store

Lg Microwave LMS1221SS Parts

Best Seller
Switch,Micro
Genuine Lg part
By: Lg
Part Number: 6600W1K001Q

The Switch, Micro is an OEM part for LG microwaves. This micro switch is crucial for the operation of the microwave door mechanism, ensuring that the microwave only operates when the door is securely closed.

Causes of a bad micro switch can include wear and tear from frequent use, damage due to electrical faults, or physical impact that disrupts its functionality.

Symptoms of a bad micro switch include:

  • The microwave not starting or stopping unexpectedly
  • The door not latching properly
  • The microwave light not turning on or off correctly
  • Error messages appearing on the control panel

This OEM LG part is also compatible with Sears/Kenmore models.

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... Read more

More
$10.95
Compare At:
$12.92
You Save:
$1.97

IN STOCK
Ships Today Guaranteed
Add to Cart
Best Seller
Microwave Magnetron
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.

This part fixes the following symptoms
  • Noisy
See more...
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... Read more

More
$130.69
Compare At:
$156.83
You Save:
$26.14

IN STOCK
Ships Today Guaranteed
Add to Cart
Best Seller
Microwave High Voltage Diode Assembly
Genuine Lg part
By: Lg
Part Number: 6851W1A002E

Microwave not heating or making loud buzzing noise? The high voltage diode regulates power to the magnetron. DIY repair typically takes 30-45 minutes.

Do-It-Yourself Stories from Customers like You Above range microwave not heating at all   Alan K. • Sunrise , FL • October 05, 2015

LG Help-line said probably a failed magnetron, but since out of warranty,referred me to an authorized LG repair service. They wanted $79.95 service call to come out & diagnose problem. I ordered replacement magnetron for less than cost of a service call, Plus the part was delivered next day! Works like new again. Happy wife = happy life! Notes for DYI-ers: 1.Be careful removing over the stove microwaves--get help,they are heavier than you think. 2.Unplug microwave for 48 hrs, carefully... Read more

More
$16.95
Compare At:
$20.17
You Save:
$3.22

IN STOCK
Ships Today Guaranteed
Add to Cart
Microwave Turntable Motor
Genuine Lg part
By: Lg
Part Number: 6549W1S011B

Turntable stopped turning or making noise? This microwave motor rotates the glass tray for even heating. Easy DIY fix with basic tools in under an hour.

This part fixes the following symptoms
  • Tray won't turn
See more...
Do-It-Yourself Stories from Customers like You Microwave turn table stopped rotating   Thomas T. • Willow Grove , PA • September 08, 2015

I googled the make and model, and found the part on AppliancePartsPros.com. The underside of the oven has a metal grille with numerous openings of various shapes and sizes. There is a rectangle that is punched into this grille, just below the motor. I pried between the vent holes to snap the connections near the perimeter on the punched rectangle. I only did this on three sides. Then pry up the rectangle away from the connected side. Undid the hold down screw, separated the motor from the... Read more

More
$36.95
Compare At:
$43.97
You Save:
$7.02

IN STOCK
Ships Today Guaranteed
Add to Cart
Microwave Door Latch Assembly
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! Read more

More
$13.95
Compare At:
$16.60
You Save:
$2.65

IN STOCK
Ships Today Guaranteed
Add to Cart
Microwave Glass Tray Support
Genuine Lg part
By: Lg
Part Number: 5889W2A014D

This circular support ring holds and rotates the glass turntable inside your microwave. It rolls on small wheels to ensure even heating by rotating food during cooking cycles. Replace if the turntable doesn't rotate, makes grinding noises, or the ring is cracked or warped.

Do-It-Yourself Stories from Customers like You The little plate in the microwave would ñot go around in circles   Ronald H. • Las Vegas , NV • February 04, 2017

I ordered a gadget with wheels on it to put under the little plate. now the little plate goes around in circles. Read more

More
$21.46
Compare At:
$25.32
You Save:
$3.86

IN STOCK
Ships Today Guaranteed
Add to Cart
Microwave Glass Turntable Tray
Genuine Lg part
By: Lg
Part Number: 3390W1A044B

Glass turntable tray for microwaves. Provides a stable, food-safe rotating surface for even heating. Replace your cracked, chipped, or missing tray.

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. Read more

More
$35.95
Compare At:
$43.14
You Save:
$7.19

IN STOCK
Ships Today Guaranteed
Add to Cart
Microwave Door Release Lever
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.

This part fixes the following symptoms
  • Door stuck closed
See more...
More
$13.95
Compare At:
$16.60
You Save:
$2.65

IN STOCK
Ships Today Guaranteed
Add to Cart
Microwave High Voltage Capacitor
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.

More
$29.95
Compare At:
$35.64
You Save:
$5.69

IN STOCK
Ships Today Guaranteed
Add to Cart
Time Delay Fuse (Thermal Fuse), 1 Pack
Genuine Lg part
By: Lg
Part Number: 3B74133C

This time delay fuse protects the appliance from overheating by opening the circuit when temperatures exceed safe limits. It's a direct-replacement electrical safety fuse used in heating circuits to help prevent damage and fire risk. What it does:

  • Opens the circuit when the detected temperature rises above safe operating limits to stop the heating element
  • Helps prevent overheating-related damage to internal components and wiring
  • Can cause intermittent or no heating when failed
  • Commonly associated with symptoms such as no heat, reduced or inconsistent heating, or a unit that stops running during heating cycles
What's included: One time delay fuse Install notes:
  • Disconnect power to the appliance before accessing or replacing the fuse to avoid electrical shock
  • Locate the fuse according to your appliance's service manual or diagram and replace with the exact part number
  • If the fuse is blown, inspect heating element, thermostat/thermal cutouts, and venting for underlying faults before reinstalling

This part fixes the following symptoms
  • Won't start
See more...
Do-It-Yourself Stories from Customers like You Thermostate (correct name is a thermister; 1 time over heat and reacts like a fuse)   Paul J. • Parkville , MD • February 16, 2017

Actual problem was due to a poor connection from the circuit board and HV transformer, over time this poor / loose connection began to arc causing enough heat to physically melt the connector and the contact to the thermistor. the problem was obvious but I still followed procedures to check all the components.*** NOTE*** ALWAYS UNPLUG DEVICE FIRST, WITH MICROVAVES, ALWAYS, ALWAYS, DISCHARGE HV CAPICITOR, IT CAN KILL YOU! just take your time testing components, following your electronic... Read more

More
$10.95
Compare At:
$12.92
You Save:
$1.97

IN STOCK
Ships Today Guaranteed
Add to Cart
Thermostat (Temperature Control)
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

This part fixes the following symptoms
  • Exhaust fan not working
See more...
More
$13.57
Compare At:
$16.01
You Save:
$2.44

IN STOCK
Ships Today Guaranteed
Add to Cart
Screw (Fastener)
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

More
$10.58
Compare At:
$11.64
You Save:
$1.06

IN STOCK
Ships Today Guaranteed
Add to Cart
Microwave Mounting Screw
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.

More
$10.58
Compare At:
$11.64
You Save:
$1.06

IN STOCK
Ships Today Guaranteed
Add to Cart
Appliance Truss Head Tapping Screw
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. Read more

More
$11.45
Compare At:
$13.63
You Save:
$2.18

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
Microwave Wire Holder
Genuine Lg part
By: Lg
Part Number: 4B72944B

This is a wire holder clip used inside a microwave to secure and route internal wiring. It keeps wires organized and safely positioned away from heat sources and moving components. Replace this holder if it is broken or missing, which can allow wires to hang loose and potentially contact hot surfaces or interfere with other parts.

More
$5.48
Compare At:
$6.03
You Save:
$0.55

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
Sensor
Genuine Lg part
By: Lg
Part Number: 6501W1A006A

 

More
$68.21
Compare At:
$80.49
You Save:
$12.28

Out Of Stock

Usually ships within 4 - 14 days

Add to Cart
  • 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