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LMV1813ST (01) LG Microwave - Overview

Diagrams for LMV1813ST

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Micro Switch – Part Number: 3B73362F
$21.45
Special Order
Micro Switch
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(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.
Light Bulb - 120V 30W – Part Number: 6912W1Z004B
$12.85
In Stock
Light Bulb - 120V 30W
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(16)
Part #6912W1Z004B
This is a light bulb and it is a part for your microwave. This bulb uses 30 watts, operates on 125 volts, and is an incandescent lamp. The function of this bulb is to illuminate the surface underneath and inside of your appliance while the door is open, and during a cooking cycle. You will need to replace this part if your door is open and the light is not activated. We recommend that you unplug your microwave and leave it inactive for some time before making this repair. Proceed with caution as the capacitors in a microwave can hold dangerous electrical charges for long periods of time even when the appliance has been unplugged.
Microwave Thermostat – Part Number: 6930W1A003X
$21.45
In Stock
Microwave Thermostat
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(12)
Part #6930W1A003X
The range thermostat is also commonly known as a stove, oven, cooktop, or range thermal fuse. This thermostat protects your oven from excessive heating, and will shut the oven heat off if excessive heating is detected. This is a genuine part sourced directly from the original manufacturer. You may need to replace this part if your appliance will not heat properly. It is made of metal and is approximately 1 inch in diameter. This part is sold individually. It is recommended to order a spare, especially if you commonly use the self-cleaning function in your oven.
Microwave Glass Tray – Part Number: MJS47373302
$49.50
In Stock
Air Duct Bracket – Part Number: 4810W1A151A
$17.15
In Stock
Air Duct Bracket
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(2)
Part #4810W1A151A
This bracket holds the metal or plastic flapper that closes off the exhaust duct when the fan is not running and opens when the fan turns on. If the exhaust fan on your microwave does not appear to be working, the problem may be with the damper assembly. If the damper does not open and close easily, check for any damage to the bracket, and replace if it is damaged or faulty. This genuine OEM exhaust damper measures approximately 12 inches long by 5 inches wide.
Charcoal Filter – Part Number: 5230W1A003C
No Longer Available
Charcoal Filter
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(7)
Part #5230W1A003C
This charcoal filter in manufactured to fit a microwave. It removes food odors from the air circulating through your appliance vent. Youi may need to replace this part if you notice odor when cooking your food or if your filter is clogged. It measures approximately 9.5 inches wide and 3 inches tall, and is black in color.
Microwave Damper – Part Number: 4900W1A001B
$13.92
In Stock
Microwave Damper
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(5)
Part #4900W1A001B
This metal vent damper door closes off the exhaust duct when the fan is not running to stop outside air from entering the microwave unit, and opens when the fan turns on to allow air to vent away from the microwave. This vent damper door measures approximately 10 inches long x 3 inches wide and fits LG microwaves.
Turntable Motor Coupler – Part Number: 4370W1A006B
$17.15
In Stock
Turntable Motor Coupler
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(12)
Part #4370W1A006B
The turntable motor coupler connects the turntable motor to the tray. If the turntable on your microwave will not rotate, you may have a faulty motor coupler. The coupler commonly has a D shaped opening that fits tightly onto the motor shaft. If it is cracked, or worn it will need to be replaced. This is a genuine OEM replacement part sourced directly from the manufacturer.
Microwave Lamp Holder – Part Number: 6620G00007B
$21.45
In Stock
Microwave Lamp Holder
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(2)
Part #6620G00007B
This genuine OEM light socket provides power to the light bulb in your microwave while holding it in place. This light socket is two pronged and the bulb should screw easily into it. If your light bulb will not light, check the bulb itself and light socket’s connection. If the socket is broken, or faulty it should be replaced immediately. Make sure to remove the high-voltage capacitor from your microwave before beginning this repair.
Mounting Plate – Part Number: 3300W0A030A
$50.56
In Stock
Stirrer Fan Cover – Part Number: MCK63604901
No Longer Available
Stirrer Fan Cover
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(5)
Part #MCK63604901
This stirrer fan cover is a genuine replacement part. This piece of plastic covers the stirrer fan and motor. It prevents dirt and grease from getting into the wave guide and damaging your appliance. Please note that you should not use your microwave without this part, it helps protect it from sparking.
Grease Filter – Part Number: MDJ42908501
No Longer Available
Grease Filter
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(3)
Part #MDJ42908501
This grease filter is a manufacturer-approved replacement part for your microwave. This filter is roughly 7.75 X 15 inches. The grease filter helps contain grease and food particles that result from heating food. It can become clogged over time and need replacing. This is an easy repair.

Common Symptoms of the LMV1813ST

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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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The major plastic frame was broken at the screw hole support. I was sent the wrong part and found out the part I needed was no longer made and would have to buy a new door for $150.
10 of 11 people found this instruction helpful.
  • Kyle from LANCASTER, CA
  • Really Easy
  • 30 - 60 mins
  • Screw drivers
The wrong part was under $20. When I found out I had to replace the whole door for $150. I decided DYI was the way to go. I used JB weld and the door looks and works like a charm. Give plenty of time to cure all water needs to be cured out if exposed to microwaves. No problems so far.
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One of the switches in a component that door activates when shut.
9 of 11 people found this instruction helpful.
  • Jimmy from OZARK, MO
  • Easy
  • 30 - 60 mins
  • Pliers, Screw drivers
I replaced the whole component with all three switches in it even though only one switch was bad . Taking out one switch out of the holder unit would probably have damaged the unit that was holding the switches. Easy install and it works great again .
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