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LMVM1945SB LG Microwave - Instructions

All Instructions for the LMVM1945SB
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The over the stove microwave door would not close.
I unplugged the microwave. I did watch a YouTube video to see how the plastic frame around the door could be removed. I used a putty knife to pry it off. The spring was still in good shape, so I hooked it up to the new latch/locker part and onto the microwave. This was just a little time consuming because I was trying to be careful so I wouldn't break anything on the new part. The plastic frame clicked right back on. I plugged the microwave in and it worked right away. If I can do it, you can do it. Sure beat buying a new microwave. Great experience.
Parts Used:
Locker
  • Christine from LUXEMBURG, WI
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    30 - 60 mins
4 of 4 people found this instruction helpful.
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Remove old lamp cover and install new cover. Simple!
This site was very helpful with locating this part. Shipping was fast. Thanks!
Parts Used:
Microwave Surface Light Lens
  • Ellen from BELLE HARBOR, NY
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    Less than 15 mins
  • Tools:
    Screw drivers
3 of 5 people found this instruction helpful.
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Microwave door would not shut completely and would not activate switches
After checking all three switches for continuity I determined that the plastic door lever had warped or gone out of wack. After shutting off power at the breaker box I removed the door, the inside trim piece around the inside of the glass. Removed the black two prong door lever, reattached the new door lever and then reinstalled the trim piece and all screws. Works fine now. Easy fix just make sure your switches are all ok then replace the door lever.
Parts Used:
Locker
  • Timothy from DELAND, FL
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Screw drivers
2 of 2 people found this instruction helpful.
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Door locker snapped off
Unplugged the microwave. I opened the door. I used a butter knife to pop the bezel off the inside of the door. I pushed the locker up and to the left and used the butter knife to pry it loose. Disconnected the locker from the spring, and reversed for the installation.
Parts Used:
Locker
  • Dave from FOREST, VA
  • Difficulty Level:
    Easy
  • Total Repair Time:
    15 - 30 mins
2 of 2 people found this instruction helpful.
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bad filter
I took the cover off and just put the new charcoal filter in
Parts Used:
Charcoal Filter
  • John from NORMANGEE, TX
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    Less than 15 mins
2 of 3 people found this instruction helpful.
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Micro Wave no heat all else fine. Also at times door would not shut properly.
Replace (after testing w/ohm meter) diode and locker holder. My door often would not close properly. Microwave let know by saying not shut properly. When disassembled found the top screw mount was hollowed out resulting in it moving on occasion when you close door. First remove casing (special safety torx head) needed for rear screws. Onc e removed all parts available to view or work on. Diode is on the capacitor so caution is needed when removing. Serious shock hazard if touched. Use insulated pliers to remove from capacitor and a phillips on the ground. Test with ohm meter Should have resistance on way and non the opposite. Replaced mine bad. Next the holder 2 phillips screws and its yours. Unplug each switch and remove. Take note to what wires go to what switch and what switch mounts where. Mine had 3 switches. Removed from old holder and put in new. Screwed holder back in place and left scrws loose till re wired. Once wired set the holder by lightly tighting the screws. Try the door till it seats properly ensuring that all 3 switches are working properly. If so thighten screws. If all seems to work as advertised, safely plug in and test unit if heats up un plug and put cover back on micro. Your all set. Happy heating.
Parts Used:
HOLDER,LOCKER
  • Roy from MILLINGTON, TN
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    1- 2 hours
  • Tools:
    Pliers, Screw drivers
1 person found this instruction helpful.
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Latch broken... Spring off
You Tube
Parts Used:
Locker
  • Toni bc from PORT ORANGE, FL
  • Difficulty Level:
    Very Easy
  • Total Repair Time:
    15 - 30 mins
  • Tools:
    Screw drivers
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Door Latch spring keeper broke
Removed door from microwave and then popped the inside widow trim ring off. Removed 4 screws from the window bracket, replaced the latch with a new part and then assembled.
Parts Used:
Locker
  • Gregg J. from WEST CHESTER, PA
  • Difficulty Level:
    Easy
  • Total Repair Time:
    15 - 30 mins
  • Tools:
    Screw drivers
1 of 5 people found this instruction helpful.
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Microwave operated but did not heat
Initial failure of over range microwave Aug 3rd. Control Panel worked but no heat. Took to local LG authoriaed local repair place. They fixed it quickly and we re-installed it. Worked fine for 2 months then had similar failure again. Agaim took to same authorized repairer. They kept unit for 3 months but finally concluded theu could not fix it and suggested we contact LG for a partial refund. When they tested the unit during re-assembly in my presence, there was a blue flash and the fuse blew. Since we had built a custom tile mural back splash around this unit, I brought it home, ordered a number of time delay fuses new capacitor and two new high voltage diodes. However, using my Fluke DMM, I checked the existing capacitor and high voltage diode and they checked OK so I just replaced the time delay fuse. The high voltage transformer leads had 2 possible ways to connect to capacitor and diode. Tried one way, plugged unit in and turned it on, and immediatly blew the fuse. Replaced the fuse and reversed the high voltage transformer connections,amd turned unit pn, and it worked perfectly. Since we had experienced several power failures during the time of the original failure, the repairer concluded that power spikes might be at fault, so I also purchased a TrippLite ISOBAR4ULTRA 3300 Joule surge protector between wall outlet and microwave, and re-installed over range. It has worked perfectly since.
Parts Used:
Fuse,Time Delay
  • Donald from Oak Ridge, TN
  • Difficulty Level:
    Easy
  • Total Repair Time:
    1- 2 hours
  • Tools:
    Screw drivers
1 of 7 people found this instruction helpful.
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cover light discolored and cracked
Replaced with new covers.
Parts Used:
Microwave Surface Light Lens
  • JP from Lake Worth, FL
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    Less than 15 mins
  • Tools:
    Screw drivers
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Bad magnetron
Went on the net to determine the possible cause ordered the new magnetron and found the company manual for free. Replaced as directed and the end result is I saved on having to buy a new $300 microwave
Parts Used:
Magnetron
  • Tom from SAN DIEGO, CA
  • Difficulty Level:
    Easy
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Screw drivers
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tab was broken off when changing bulb
removed old cover to lamp and reinstalled the new one by unscrewing one screw and screwing the new one back in
Parts Used:
Microwave Surface Light Lens
  • Shawn from Seattle, WA
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    Less than 15 mins
  • Tools:
    Screw drivers
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All Instructions for the LMVM1945SB
1 - 12 of 12