Models > LMV1831ST

LMV1831ST LG Microwave - Overview

Sections of the LMV1831ST

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FILTER,GREASE – Part Number: 5230W1A012E
FILTER,GREASE
PartSelect #: PS12713651
Manufacturer #: 5230W1A012E
Sold individually.
$18.02
  In Stock
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Micro Switch – Part Number: 3B73362F
Micro Switch
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(3)
PartSelect #: PS3522738
Manufacturer #: 3B73362F
$18.42
  In Stock
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Light Bulb - 120V 30W – Part Number: 6912W1Z004B
Light Bulb - 120V 30W
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PartSelect #: PS3530415
Manufacturer #: 6912W1Z004B
$20.36
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Thermostat – Part Number: 6930W1A003X
Thermostat
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PartSelect #: PS3530468
Manufacturer #: 6930W1A003X
$31.73
  In Stock
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Damper – Part Number: 4900W1A001B
Damper
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(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...
$17.96
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Air Duct Bracket – Part Number: 4810W1A151A
Air Duct Bracket
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...
$27.09
  In Stock
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COVER,STIRRER FAN – Part Number: 3550W1A126D
COVER,STIRRER FAN
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(4)
PartSelect #: PS3560669
Manufacturer #: 3550W1A126D
$38.85
  In Stock
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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...
$38.85
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Fuse,Time Delay – Part Number: 3B74133Q
Fuse,Time Delay
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(1)
PartSelect #: PS3522743
Manufacturer #: 3B74133Q
Sold individually.
$9.85
  In Stock
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Rivet – Part Number: 4051W3A001A
Rivet
PartSelect #: PS3522869
Manufacturer #: 4051W3A001A
$9.59
  In Stock
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Motor, AC Synchronous – Part Number: 6549W1S013H
Motor, AC Synchronous
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★★★★★
(1)
PartSelect #: PS3529216
Manufacturer #: 6549W1S013H
If the turntable on your microwave does not rotate, or you can hear a grinding noise, the problem may be with the motor. The motor is typically located below the floor of the oven, and is accessed thr...
$46.69
  In Stock
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Glass Cooking Tray – Part Number: 1B71961H
Glass Cooking Tray
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(1)
PartSelect #: PS3517413
Manufacturer #: 1B71961H
This tray rotates in your microwave ensuring more even temperatures.
$75.70
  In Stock
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Questions And Answers for LMV1831ST

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Melissa
August 8, 2022
Power to the outlet but unit will not go on
For model number LMV1831ST
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Hi Melissa, Thank you for your question. If your microwave will not turn on, there are some parts that you will need to check to see which one is causing the issue. You will need to check the door switches, the ceramic fuse, the thermal fuse and the door latch assembly. We have included a link that you may reference on how to check these parts. Once you have determined the part you need, please feel free to call customer service. We are open 7 days a week and anyone will be happy to assist you. We look forward to hearing from you!

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Mary
January 31, 2023
What is name of plastic part under glass plate that helps spin plate
For model number LMV1831ST
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Hi Mary, Thank you for your question. The part number listed under your model number for the turntable assembly is PS3528550. If you would like to place an order for it, please call our customer service line and anyone will be happy to assist you. We look forward to hearing from you!

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Doug
December 19, 2022
the micrwave just lost power nothing works
For model number LMV1831ST
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Hello Doug, thank you for contacting us. The issue is most probably related to a blown fuse, part number PS3522741, or a defective thermostat, part number PS3530463. Customer service is available 7 days a week if you require assistance placing an order. Thanks again for reaching out!

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Mary
January 31, 2023
What is glass plate part number?
For model number LMV1831ST
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Hello Mary, thank you for the question. The glass plate for your model is part number PS3517413. Customer service is available 7 days a week if you require assistance placing an order. Thanks again for reaching out!

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Joseph
February 24, 2023
Is it possible to purchase the stainless steel handle that is on the door? Thanks
For model number LMV1831ST
PartSelect logo
Hello Joseph, thank you for your question. This Handle PS3535310 is an exact OEM replacement, exactly as the original and is stainless color. We are pleased to have been able to help.

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Common Symptoms of the LMV1831ST

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No heat
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Won’t turn on
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Doesn’t shut off
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Tray won’t turn
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Little to no heat when baking
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Element will not heat
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Door won’t open after self cleaning cycle
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Oven not heating evenly
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Door not closing properly
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Oven is too hot
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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:
Switch,Micro Switch,Micro
  • Joshua from WHITE LAKE, MI
  • Difficulty Level:
    Very Easy
  • Total Repair Time:
    15 - 30 mins
  • Tools:
    Screw drivers
44 of 60 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
30 of 50 people found this instruction helpful.
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needed grease filters for a used over range microwave
ordered on the part select web site, came quickly, order was correct
Parts Used:
FILTER,GREASE
  • tony from kewanna, IN
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    Less than 15 mins
26 of 51 people found this instruction helpful.
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