LMV2031ST (00) LG Microwave - Overview

Sections of the LMV2031ST

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Microwave Grease Filter – Part Number: 5230W1A012E
Microwave Grease Filter
★★★★★
★★★★★
(1)
PartSelect #: PS12713651
Manufacturer #: 5230W1A012E
Sold individually.
$20.24
  In Stock
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Vent Grille - Black – Part Number: MDX61912701
Vent Grille - Black
★★★★★
★★★★★
(10)
PartSelect #: PS3535252
Manufacturer #: MDX61912701
This is replacement vent grille or vent grill for your microwave. You will find the grill vent either above or below the microwave door, depending on your model. If your vent grill is discolored or cr...
$74.59
  In Stock
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Microwave Thermostat – Part Number: 6930W1A003X
Microwave Thermostat
★★★★★
★★★★★
(4)
PartSelect #: PS3530468
Manufacturer #: 6930W1A003X
$32.64
  In Stock
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Light Bulb - 120V 30W – Part Number: 6912W1Z004B
Light Bulb - 120V 30W
★★★★★
★★★★★
(3)
PartSelect #: PS3530415
Manufacturer #: 6912W1Z004B
$20.95
  In Stock
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Micro Switch – Part Number: 3B73362F
Micro Switch
★★★★★
★★★★★
(4)
PartSelect #: PS3522738
Manufacturer #: 3B73362F
$24.73
  Special Order
Charcoal Filter – Part Number: 5230W1A003A
Charcoal Filter
★★★★★
★★★★★
(4)
PartSelect #: PS3527523
Manufacturer #: 5230W1A003A
This is an authentic LG charcoal filter for your microwave, sourced directly from the manufacturer. It is designed to remove odors from the air that circulate through your microwave vent. It measures ...
$52.40
  In Stock
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Microwave Grease Filter – Part Number: 5230W1A012B
Microwave Grease Filter
★★★★★
★★★★★
(1)
PartSelect #: PS3527528
Manufacturer #: 5230W1A012B
Sold individually.
$18.65
  In Stock
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Air Duct Bracket – Part Number: 4810W1A151A
Air Duct Bracket
★★★★★
★★★★★
(1)
PartSelect #: PS3523851
Manufacturer #: 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...
$26.92
  In Stock
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Microwave Damper – Part Number: 4900W1A001B
Microwave Damper
★★★★★
★★★★★
(2)
PartSelect #: PS3524148
Manufacturer #: 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...
$17.85
  In Stock
Order within the next 11 hrs and your part ships today!
Microwave Glass Tray – Part Number: MJS47373302
Microwave Glass Tray
★★★★★
★★★★★
(4)
PartSelect #: PS12082158
Manufacturer #: MJS47373302
$77.55
  In Stock
Order within the next 11 hrs and your part ships today!
Mounting Plate – Part Number: 3300W0A045A
Mounting Plate
PartSelect #: PS7784808
Manufacturer #: 3300W0A045A
This mounting plate is a manufacturer-approved replacement part for your microwave. The mounting plate, or bracket, secures your above-range microwave in place against the wall. To conduct this repair...
$39.96
  In Stock
Order within the next 11 hrs and your part ships today!
Spring – Part Number: 4970WRA001G
Spring
★★★★★
★★★★★
(1)
PartSelect #: PS3524607
Manufacturer #: 4970WRA001G
$17.47
  In Stock
Order within the next 11 hrs and your part ships today!

Questions And Answers for LMV2031ST

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3 questions answered by our experts.
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Kelvin
April 4, 2024
Heard pop then burnt smell
For model number LMV2031ST
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Hello Kelvin, thank you for your inquiry. Based on our understanding of the issue, we would suggest checking the high-voltage capacitor, part number PS3517241, to solve the problem. It is an electronic device that holds a charge of electricity in the high-voltage circuit of the microwave. Glad to be of assistance!

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John
January 10, 2025
The squirrel cases are loose and not turning.
For model number LMV2031ST
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Hello John, Thank you for your inquiry. If the wheels in the ventilation fan motor are not turning, check for any obstructions to the blades and remove the assembly to check to see if they turn freely. If they do turn freely, you can test the motor with a multimeter. We hope this helps.

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Ladon
February 4, 2026
I need a spring for the door latch
For model number LMV2031ST
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Hello ladon, thank you for contacting us. According to our research, the door spring, part number PS3524607, is compatible with your model number. We hope this information helps!

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Common Symptoms of the LMV2031ST

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No heat
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Won’t turn on
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Tray won’t turn
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Doesn’t shut off
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Door not closing properly
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Little to no heat when baking
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Element will not heat
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Oven not heating evenly
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Door won’t open after self cleaning cycle
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Noisy
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Oven is too hot
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Will Not Start
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Keep searches simple. Use keywords, e.g. "leaking", "pump", "broken" or "fit".
Microwave would not rotate or heat up food.
After watching a few youtube videos, I used a phillips SD to take controll pannel off to access the switches that sense when microwave door is closed. Swapped out all 3 switched and mocrowave works like new. $20 fix (shipping included)
Parts Used:
Micro Switch Microwave Micro Switch
  • Joshua from WHITE LAKE, MI
  • Difficulty Level:
    Very Easy
  • Total Repair Time:
    15 - 30 mins
  • Tools:
    Screw drivers
51 of 74 people found this instruction helpful.
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Broken door micro switch. (unit does not start heating)
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 left 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.
Parts Used:
Micro Switch
  • JAMES from BILLINGS, MT
  • Difficulty Level:
    Very Easy
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Screw drivers
37 of 66 people found this instruction helpful.
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Vent Grille tabs snapped off
Repair was easy but you have to remove the screw at the top of the microwave (top left) in order to secure the far left tab with the hole in the tab. Place the grille in place, push to the left and then secure the screw you removed. Just remember that the mounted screw will need to be removed the next time you need access in order to replace the charcoal filter.
Parts Used:
Vent Grille - Black
  • Andy from PERRYSBURG, OH
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Screw drivers
18 of 24 people found this instruction helpful.
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