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MMV5156ACW (AWHEMTC) 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.
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.
Glass Cooking Tray – Part Number: 1B71961H
$45.29
On Order
Glass Cooking Tray
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(15)
Part #1B71961H
This OEM glass cooking tray is a removable glass plate, measuring 13 inches in diameter, that spins inside the microwave during operation. It ensures that heat is evenly distributed in the microwave to properly heat or cook the food. Over time, the heat generated in the microwave can cause the glass to warp and the plastic rollers to wear down. The glass can also crack or shatter accidentally. It is important to replace the glass as soon as it is no longer functioning well to prevent uneven heating and reduce any safety hazards from damaged glass. Carefully pull the old glass cooking tray from the microwave and clean the microwave cavity. Place the new tray onto the rotating mechanism, and properly align it with the rollers. Turn the microwave on and check to see that the tray is rotating freely.
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.
Time Delay Fuse – Part Number: 3B74133Q
$11.77
On Order
Time Delay Fuse
★★★★★
★★★★★
(3)
Part #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 order to protect your microwave from damage. You should consider having a service technician install this part as the high-voltage capacitors in a microwave can contain a very harmful electrical charge, even when the microwave is unplugged and has been inactive for some time. The tools that would be needed to complete this installation include a Phillips screwdriver, an insulated screwdriver, and a pair of pliers.
Turntable Assembly – Part Number: 5889W2A012F
$27.36
In Stock
Turntable Assembly
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(6)
Part #5889W2A012F
This turntable assembly, also known as a rotating ring, is a genuine OEM replacement part for your microwave. It is brown in color and about 10 inches in diameter. This part supports the glass turntable and keeps it in place. Replacing this part is very easy and requires no tools. Simply remove the glass tray, pop out the existing ring and replace with the new one.
Cover,Stirrer Fan – Part Number: 3550W1A126B
$21.45
Special Order
Rivet – Part Number: 4051W3A001A
$6.40
In Stock
Microwave Screwtapping – Part Number: 1TTL0402818
$13.92
Special Order
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.
Hardware Mounting Kit – Part Number: 3861W1A043C
$43.18
In Stock
Hardware Mounting Kit
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(4)
Part #3861W1A043C
Ensure a seamless installation of your microwave oven with this Hardware Mounting Kit from LG. This genuine OEM item contains all the necessary hardware required, making the assembly process a breeze. It is important to follow the manufacturer-provided owner's manual or installation guide while setting up. This piece may vary slightly in appearance from previous parts you might have seen, but it guarantees the same high-quality performance. This kit is designed to perfectly fit certain LG microwave models. Purchasing and using authentic installations kits such as this LG Hardware Mounting Kit ensures durability of your microwave oven.
Magnetron – Part Number: 2B71165R
$135.59
Special Order
Magnetron
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(6)
Part #2B71165R
This genuine LG microwave oven magnetron is the key component that generates the microwaves needed to heat food efficiently. Designed for a precise fit in many LG models, it converts electrical energy into microwave radiation for fast and even cooking. If your microwave isn’t heating, cooks unevenly, or makes buzzing noises, replacing the magnetron can restore reliable performance. Built for durability and OEM quality, this part ensures your appliance operates as intended. For installation, always disconnect power and discharge the capacitor to ensure safety.

Common Symptoms of the MMV5156ACW

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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Broke the round glass tray
10 of 14 people found this instruction helpful.
  • Eileen from DETROIT LAKES, MN
  • Very Easy
  • Less than 15 mins
new glass tray
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