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MS85MN (HBLEGSS) LG Range - Overview

Diagrams for MS85MN

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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.
Time Delay Fuse – Part Number: 3B74133Q
$11.77
On Order
Time Delay Fuse
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(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 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 Screwtapping – Part Number: 1TTL0402818
$13.92
Special Order
High Voltage Diode – Part Number: 6021W3B001V
$17.15
In Stock
TURNTABLE ASSEMBLY – Part Number: 5889W2A015A
No Longer Available
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.
Incandescent Lamp – Part Number: 6912W3B002K
$21.45
In Stock
Incandescent Lamp
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(4)
Part #6912W3B002K
This incandescent lamp is sourced from the original manufacturer, for use in microwaves and ovens. It illuminates the interior of the appliance cavity allowing you to view the food as it cooks or heats. It is typically located behind a panel or a cover inside the microwave/oven. Like any light bulb, the lamp can simply burn out over time. However, it is also possible that the lamp socket or wiring may be damaged resulting in an electrical failure. Before beginning any replacement, ensure that the appliance is unplugged. Remove the old lamp from its socket and inspect the assembly to ensure it is in good condition. Insert the new lamp in the socket and make sure it is seated correctly before repositioning the panel/cover. Plug the appliance back in to verify that the new lamp is functioning.
Microwave Thermostat – Part Number: 6930W1A003B
$13.92
In Stock
Capacitor – Part Number: 0CZZW1H004B
$43.18
On Order
Capacitor
Part #0CZZW1H004B
Store the electrical energy needed by a microwaves high-voltage heating system with this replacement capacitor. During cooking, the capacitor works with the transformer, diode, and magnetron to help create the energy that heats food. A faulty capacitor may be linked to no heat, loud buzzing, or a fuse that blows when cooking begins. However, these signs can also come from other high-voltage components, so proper testing is important. Microwave capacitors may hold a deadly electrical charge even after the power cord is unplugged. For this reason, testing and installation must be completed by a qualified appliance service technician.
Locker – Part Number: 4026W2A015A
No Longer Available

Common Symptoms of the MS85MN

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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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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