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Models > LMA1150SV > Instructions

LMA1150SV LG Microwave - Instructions

All installation instructions for LMA1150SV parts

These instructions have been submitted by other PartSelect customers and can help guide you through the microwave repair with useful information like difficulty of repair, length of repair, tools needed, and more.

All Instructions for the LMA1150SV
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Motor Burned Out On Turntable

  • Customer: Steven from Oak Forest, IL
  • Difficulty: Really Easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Screw drivers
  • 31 of 39 people found this instruction helpful
My 8 year old daughter cleaned the inside of the microwave with enough water to rival a tsunami. Resulted in a clean microwave with a fried out motor that no longer revolved. Part came quickly. Took cover and bottom off to get to the part. One screw held it on and a plug. Removed those, put on new part and she was good to go. No trip to home depot today.

Arcing had caused burned turntable and melted connection to sec. motor.

  • Customer: John from MOUNTAIN VIEW, CA
  • Difficulty: Easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Screw drivers
  • 4 of 4 people found this instruction helpful
Note: also had to replace turntable. Removed top cover using secure driver set. Placed microwave on it's front, using a soft towel. Removed edge screws from bottom plate (leaving 4 screws in center attached to heavy transformer). Separated bottom plate from body of microwave (leaving transformer wires still attached) exposing Synchronous motor. Removed two screws holding motor and electrical plug. Swapped new motor in its place. Re-attached bottom plate with its screws. Placed microwave onto it normal position. Re-attached top cover with its secure screws. Installed new turntable inside.

Plate stopped rotating - discovered plastic piece that spinner fit into was broken

  • Customer: Charles from STAMFORD, CT
  • Difficulty: Easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Screw drivers
  • 1 of 1 people found this instruction helpful
Remove 2 Philips Head screws on left side of microwave. Remove 3 Philips Head screws from bottom rear of microwave. Remove 4 security screws from back of microwave (holding the cover to frame). These are the security type tips that are like a Torx bit, but need to be hollow in middle to accommodate pin in center of screw. Then back plate of microwave with heavy transformer still attached slides up and away. The wires aren't long enough to allow it to rest flat on the bench, but weight is low so it's easy to hold it upright while removing the motor unit. Separate connector from motor (simple) Remove motor by unscrewing 1 phillips head screw and rotating counter-clockwise a tiny bit. Remove Motor. Reverse steps to re-assemble. Note that there are a series of tabs at the bottom of the back cover that fit into holes in the baseplate of microwave. It can be a little tricky to line them up with the weight of the transformer, but it's not too bad. Once lined up, it drops in nicely and all the various screw holes line up. The microwave is a bad cooker when the plate doesn't spin. This simple and inexpensive fix saved me from having to buy a whole new oven.

The tray did not turn

  • Customer: Charlie from Tulsa, OK
  • Difficulty: Really Easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 5 of 15 people found this instruction helpful
It's easy , just pull the old one up and put the new one push it down

Carousel would not turn. Small plastic drive shaft broken.

  • Customer: Stan from New Bedford, MA
  • Difficulty: Easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Pliers, Screw drivers
  • 0 of 0 people found this instruction helpful
Pried cover off bottom-center of microwave. It seems to be either glued or lightly tack welded. Removed 2 small Phillips screws to remove motor. Disconnected electric feed by hand. Don't let go of electric wire or small screws. They will be hard to retrieve from behind the rest of the metal base. Reverse process to install new motor. Didn't try to put small cover back on.

Microwave turntable did not turn, or dragged/stuck

  • Customer: Richard from Duluth, GA
  • Difficulty: Really Easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 0 of 0 people found this instruction helpful
I had previously replaced the turntable motor, which helped for a small while. When the problem occurred again I examined the turntable assembly (small wheels which support the glass tray as it turns). The wheels were all flat on two sides. It may have been a defect from the beginning or a result of our placing food off-center because this model has a terrible cold spot in the middle of the microwave pattern................ The repair was as simple as taking out the glass tray, pulling the assembly (plastic arms with wheels on the end) off, dropping the new assembly on, and replacing the glass tray.............. This is surely worth a first look before replacing the turntable motor.

the turntable on the microwave quit turning even though the microwave would heat up

  • Customer: kent from wichita, KS
  • Difficulty: Easy
  • Time to Complete: 30 - 60 mins
  • Tools Required: Pliers, Screw drivers
  • 0 of 0 people found this instruction helpful
I removed the outer cover of the microwave and removed the bottom palte to access the small motor. i unplugged the old motor from teh wiring connector, removed (1) screw and motor came out. I reversed the proceedure with the new motor and it was finished.It was a piece of cake.

Replace turntable motor

  • Customer: William from Houston, TX
  • Difficulty: A Bit Difficult
  • Time to Complete: 1- 2 hours
  • Tools Required:
  • 0 of 0 people found this instruction helpful
Unplug.Take off the external cowling from the back of the unit by removing the torx security screws. Tip: instead use a thin screwdriver blade to unscrew the torx screws, or knock out the center pins of these screws. Remove the bottom panel. The replacement motor is attached with one phillips screw, re-attach wires to motor - polarity doesn't matter. Re-assemble and you're finished.

My turntable shattered

  • Customer: Terry from New York, NY
  • Difficulty: Really Easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 0 of 0 people found this instruction helpful
Partselect sent me the right thing in two days! The whole process was easy as pie.

Turntable not turning.

  • Customer: Virgil from Bowling Green, MO
  • Difficulty: Really Easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
Take off cover then the bottom. Transformer is on the bottom plate and wires won't let it come all the way off, too many wires to pull off so will have to position the bottom plate so you can get to the motor. Remove 1 screw on motor and remove motor. Install new motor connect wires replace bottom plate, replace cover. All done (hope & pray it works ok) mine worked perfect. Hope this helps.

Turntable quit turning

  • Customer: Brian from Monticello, IL
  • Difficulty: Easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
Overall repair quite simple. Removed screws from the sides and rear of the microwave, then removed cover. Next, removed only the screws to separate the bottom cover. Removed the one screw in the AC Synchronous motor to remove the motor (had to use small screwdriver through a vent slot in the bottom to remove the screw). Unplugged and removed motor. Installation is the reverse of removal. Note: on the back of my appliance were 4 torx screws with a tamperproof pin in the center. I used the rotary tool to grind out the pins so I could use a regular torx bit instead of ordering specialty bits.

synchronized motor died a terrible death and stopped turning.

  • Customer: mark from crown point, IN
  • Difficulty: Really Easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
Eight screws off the bottom exposed the cover plate. Easily found the motor location the looked up the item number and verified data and ordered the part. Replaced the motor, tightened the screws and flipped it upright. Plugged it in and the lights came on. Set a time pushed start and smiled! The eagle had landed!!!!
All Instructions for the LMA1150SV
1-14 of 14