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LTM9020W01 (CW2ELGA) LG Range - Overview

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Micro Switch – Part Number: 3B73362F
$21.45
Special Order
Micro Switch
★★★★★
★★★★★
(14)
Part #3B73362F
This microwave door switch provides power to the various components in the microwave when the door is in a closed position, and interrupts power when the door is open. This door switch is approximately 1 1/2 inches long, and has 2 metal prongs called terminals that extend from its body. If your microwave will not turn or heat properly, there could be an issue with the door switch. You can check the switch for continuity using a multi-meter. With the actuator button depressed, you should see continuity between these terminals. If there is no continuity the switch will need to be replaced. NOTE: Before you begin this repair, first make sure your microwave is unplugged, and that your capacitor is discharged. A capacitor stores large amounts of electricity even when your microwave is unplugged.
Micro Switch – Part Number: 6600W1K001D
$21.45
In Stock
Micro Switch
★★★★★
★★★★★
(13)
Part #6600W1K001D
The door switch, often referred to as a primary interlock switch, provides power to the various components in the microwave when the door is in a closed position, and interrupts power when the door is open. This door switch is approximately 1 1/2 inches long, and has 2 metal prongs called terminals that extend from its body. Common symptoms related to a faulty primary door switch include: microwave will not turn/shut off, or the microwave will not heat properly. You can check the switch for continuity using a multi-meter. With the actuator button depressed, you should see continuity between these terminals. If there is no continuity the switch will need to be replaced. NOTE: Before you begin this repair, first make sure your microwave is unplugged, and that your capacitor is discharged. A capacitor stores large amounts of electricity even when your microwave is unplugged.
Microwave Locker – Part Number: 4026W2A019A
$13.92
In Stock
Microwave Locker
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(9)
Part #4026W2A019A
The locker, or door latch assembly fits to the inside of the microwave door, and keeps the door closed. If the door on your microwave oven doesn’t appear to close properly, you may have a problem with the door latch assembly. This locker is made of plastic and measures 7 inches long x 2 inches wide. If either of the hooks is broken or does not have any spring tension, you may need to replace the assembly.
Microwave Screwtapping – Part Number: 1TTL0402818
$13.92
Special Order
High Voltage Diode – Part Number: 6021W3B001V
$17.15
In Stock
Switch,Micro – Part Number: 3B73361E
$21.45
Special Order
Switch,Micro
Part #3B73361E
This is a micro switch, but you may also know it as a door switch and it is compatible with your microwave. The function of the micro switch is to communicate to the electronic control board of your appliance when the door is opened and closed. If this part is broken and needs replacing you will notice your timer activated but the food inside is not being heated. This part measures to be roughly 1.5 inches long by just over half an inch wide, and it is black in color. You will find the location of this part behind the front panel of your microwave.
Microwave Thermostat – Part Number: 6930W1A003B
$13.92
On Order
Spring – Part Number: 4970WRA001B
$13.92
Special Order
Spring
Part #4970WRA001B
Lamp,Incandescent – Part Number: 6912W3B002L
$21.45
On Order
Capacitor – Part Number: 0CZZW1H004C
$43.18
In Stock
Capacitor
Part #0CZZW1H004C
Holder,Locker – Part Number: 3500W1A028B
No Longer Available
Holder,Locker
Part #3500W1A028B

Common Symptoms of the LTM9020W01

How this model fails, and the parts that fix it.

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Broken door micro switch. (unit does not start heating)
37 of 68 people found this instruction helpful.
  • JAMES from BILLINGS, MT
  • Very Easy
  • 30 - 60 mins
  • Screw drivers
Unplug the unit before servicing. Need phillips screwdriver. Open door. Use step ladder to access and remove 2 small screws from top of the room air diffuser at top of unit. Slide diffuser slightly to the left to align the diffuser's plastic tab on the left side to rotate toward you. (The wires for the front control panel are at the far l eft side of this difuser, but difuser is slotted for easy removal). Once the difuser is removed you will see 1 screw at the top that secures the pannel cover on the left side of the unit. Remove screw and slide this panel slightly up and out. This exposes the plastic frame that holds the upper and lower door switches. To locate the door switches and observe how they work, close and open the door and watch the door (bayonets) open and close the micro switches. Do the (red) buttons on top of the switches move up and down when the door bayonets push and release? If the buttons do not "pop" up when opened the switch is defective. The switch frame is secured with 2 screws. Remove screws and rotate the unit out for easy access to the micro switch(s). The internal (spring?) on my unit that is suposed to allow the red (visible) button on top of the switch to "pop" up when the door is opened was broken. Carefully pry the switch outward while being careful to lift the plastic holder-piece that holds the switch in place. Be careful, there is a small pin on the frame, so rotate the switch OUT toward you while lifting (carefully) the plastic holder-piece (you will see it on top of the switch). You can use an ohm meter to test the continuity of the switches. But if the buttons don't "pop" they are defective. Replace switch and reassemble.
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Door sensor switch went bad. Microwave would not operate.
15 of 29 people found this instruction helpful.
  • Randall from ARCADIA, CA
  • A Bit Difficult
  • 1- 2 hours
  • Pliers, Screw drivers
Watched a couple of repair videos on Youtube by searching for the model number. Found out what to do in order not to get shocked by the powerful capacitor.
Ordered the two switches (To be sure, I could have ordered a third switch as suggested in the videos.)
Bought a tamper-proof star bit to get the cover off. Followed the dir ections to replace the switches. - I broke the harness and had to use some super glue, but it's all good. I should have removed the harness instead of trying to get a switch out while it was still in place.
It's all back together, and the wife is happy!!
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everything worked except it wouldnt cook
11 of 21 people found this instruction helpful.
  • Joseph from N VERSAILLES, PA
  • Very Easy
  • 30 - 60 mins
  • Screw drivers
tested all 3 of the door switche for continuity, the top switch was faulty, replaced it,for approx $4.00 and saved a $350 dollar microwave.
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