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LSMC3086ST (CSBESTD) LG Microwave - Overview

Sections of the LSMC3086ST

[Viewing 7 of 7]
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Filter,Grease – Part Number: 5230W1A012C
Filter,Grease
★★★★★
★★★★★
(2)
PartSelect #: PS3527529
Manufacturer #: 5230W1A012C
$10.70
  Special Order
Microwave Micro Switch – Part Number: 6600W1K001C
Microwave Micro Switch
★★★★★
★★★★★
(4)
PartSelect #: PS3529293
Manufacturer #: 6600W1K001C
This micro-switch is designed for use in your microwave. The function of this part is to monitor the door latch position and communicate to the electronic control board whether the latch is open or cl...
$21.45
  In Stock
Order now and your part arrives by Mar 30
Micro Switch – Part Number: 6600W1K001D
Micro Switch
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★★★★★
(13)
PartSelect #: PS3529294
Manufacturer #: 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...
$21.45
  In Stock
Order now and your part arrives by Mar 30
Air Duct Bracket – Part Number: 4810W1A151A
Air Duct Bracket
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(2)
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...
$17.15
  On Order
Microwave Damper – Part Number: 4900W1A001B
Microwave Damper
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★★★★★
(5)
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...
$13.92
  In Stock
Order now and your part arrives by Mar 30
Time Delay Fuse – Part Number: 3B74133Q
Time Delay Fuse
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★★★★★
(3)
PartSelect #: PS3522743
Manufacturer #: 3B74133Q
The fuse-time delay may also be known as a line fuse or a microwave fuse, and it is a piece for your microwave. The function of this part is to shut off the microwave if there is a power surge, in ord...
$11.77
  In Stock
Order now and your part arrives by Mar 30
Microwave Motor Ac Synchronous – Part Number: 6549W1S013H
Microwave Motor Ac Synchronous
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★★★★★
(5)
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...
$43.18
  In Stock
Order now and your part arrives by Mar 30
Installation Hardware Kit – Part Number: 3861W1A043H
Installation Hardware Kit
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(3)
PartSelect #: PS7785011
Manufacturer #: 3861W1A043H
This is a microwave installation hardware kit, it includes all of the hardware you'll need to mount the appliance over a range, or into a cabinet. To install, please carefully follow the instructions ...
$29.47
  In Stock
Order now and your part arrives by Mar 30
Spring – Part Number: 4970WRA001G
Spring
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(1)
PartSelect #: PS3524607
Manufacturer #: 4970WRA001G
$13.92
  In Stock
Order now and your part arrives by Mar 30
COVER ASSEMBLY,STIRRER FAN – Part Number: 3551W1A032C
COVER ASSEMBLY,STIRRER FAN
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★★★★★
(1)
PartSelect #: PS12587847
Manufacturer #: 3551W1A032C
$43.18
  In Stock
Order now and your part arrives by Mar 30
GRILLE,VENT (Black) – Part Number: MDX61171703
GRILLE,VENT (Black)
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(4)
PartSelect #: PS12590538
Manufacturer #: MDX61171703
This black microwave vent grille is designed to maintain proper airflow within your appliance, preventing overheating and ensuring efficient performance. Made from durable, heat-resistant materials, i...
$64.69
  In Stock
Order now and your part arrives by Mar 30
Halogen Lamp – Part Number: 6912A40002J
Halogen Lamp
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(5)
PartSelect #: PS3610037
Manufacturer #: 6912A40002J
This 120-voltage, 20-watt halogen lamp is an authentic OEM part made for Samsung microwaves. It is a type of lightbulb that uses a mixture of halogen gas to ensure longevity and higher lighting qualit...
$24.67
  In Stock
Order now and your part arrives by Mar 30

Questions And Answers for LSMC3086ST

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Common Symptoms of the LSMC3086ST

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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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Noisy
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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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Microwave would not power up.
Fun and easy fix for my kids.

The countdown timer was working but no "cooking" happening. Did not hear the familiar sound of the heating part working.

Determined it might be some simple switches for under $15 dollars. Bought one of each. They allow the microwave to turn on/activate by signaling that the door is properly latched. My wife noticed that it was failing and then failed over the course of about a day. Several times where it worked, then did not work. The timer was counting down one time and then when she opened the door the microwave heating component turned on. Guess it had activated the switch as she was opening the door.

Procedure to repair
- Unplug
- Remove two screws on front top - allows you to remove the vent. Realized there was a charcoal filter there that I had never replaced so ordered that after the fix.
- Remove two screws to pull off the front right panel (area where your microwave buttons are) One at the top under the before mentioned vent and one under the microwave on the far right corner.
- Have someone hold the panel because wiring is to short to place it on a ledge while connected or take a picture and remove connections. I simply held it while my daughter undid the micro switches.
- Carefully remove micro switches. There were two "orange" button ones so I chose the top one to replace along with the green button one that I had ordered, so I simply pulled an orange from the bottom and a green from the top latch area. You may have remove the part that holds the switches since it was a little tough with the wires in the way and not knowing how the switches stay put.
- plug in new switches and place in the brackets that hold them in place
- reverse everything you did.
Viola - a working microwave vs purchasing a brand new for several hundred dollars or having to call in a technician.I love that my young kids did this project with me and we actually got it running. Don't like to have to throw away more items at the landfill.

Semi-Handy Man
Parts Used:
Micro Switch Microwave Micro Switch
  • Dusty from SNOWMASS VLG, CO
  • Difficulty Level:
    Easy
  • Total Repair Time:
    15 - 30 mins
  • Tools:
    Screw drivers
13 of 24 people found this instruction helpful.
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Microwave would not heat anything and turntable no longer turned.
I decided the door switch was the problem because 2 problems happened at the same time. I removed the 4 screws for the top outside cover and the 1 screw that held the control board. After removing the control board screw, I lifted it up and removed it. This gave me access to the 3 door switches. I then removed the 2 screws that held the plastic piece that holds the switches. This made it easier then to replace the switches.
Parts Used:
Micro Switch Microwave Micro Switch
  • Jon from DANA, IN
  • Difficulty Level:
    A Bit Difficult
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Pliers, Screw drivers
7 of 9 people found this instruction helpful.
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