Models > LRMP1270ST > Instructions

LRMP1270ST (CSSELGA) LG Microwave - Instructions

All installation instructions for LRMP1270ST 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 LRMP1270ST
1-15 of 19
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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
  • 20 of 27 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.

super easy

  • Customer: Henriette from Davis CA
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 0 of 0 people found this instruction helpful
saved me having to buy a new microwave. It was super fast delivery, had the part the next day! Amazing service and great customer support.

Microwave failed to head and light, fan, and turntable failed to come on.

  • Customer: Robert from Cedar Park TX
  • Difficulty: A Bit Difficult
  • Time to Complete: 30 - 60 mins
  • Tools Required: Nutdriver, Screw drivers
  • 0 of 0 people found this instruction helpful
Problem was due to a faulty door switch. Replaced with a new switch and the microwave now works fine! Only thing that was tricky was that LG uses the hex screws with a peg in the middle to keep the microwave cover on. Had to use a small screwdriver and pliers (on the screwdriver) to unscrew the screws.

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 operated but did not heat

  • Customer: Donald from Oak Ridge TN
  • Difficulty: Easy
  • Time to Complete: 1- 2 hours
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
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.

suddenly stopped working while in use

  • Customer: Kevin from Colonia NJ
  • Difficulty: Easy
  • Time to Complete: Less than 15 mins
  • Tools Required: Pliers, Screw drivers
  • 0 of 0 people found this instruction helpful
i unplugged the unit,unscrewed the outer shell so that all the wiring and internal components were visible.starting at the first of three micro switches i removed the slip on terminals installed the alligator clips too the wires so the switch would now be bypassed.i made sure the wires and clips were not touching anything plugged unit in and it worked.i then installed the new switch and closed up the outer shell

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.

didn't have it at time of pruchase

  • Customer: Yolanda from Birmingham AL
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 0 of 0 people found this instruction helpful
brought new one and the help with the sites pictures to describe what I need was extremely helpful. The prompt delivery was great.

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.

no heat

  • Customer: Nelia from Streamwood IL
  • Difficulty: Really easy
  • Time to Complete: 30 - 60 mins
  • Tools Required: Nutdriver, Screw drivers
  • 0 of 0 people found this instruction helpful
unplug the unit then pull down , lot of screws are on top. open the cover . you could see the parts that need to replace on the right hand side (heavy side). disconnect wires then test the parts that need to replace by a tester to make sure that it's really broke .then unscrew part and replace .

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.

The plastic base that rotates under the glass plate broke.

  • Customer: Kiah from CARPINTERIA CA
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 0 of 0 people found this instruction helpful
Lifted up the glass plate, lifted out the plastic base that rotates and placed the new one inside. The piece that connects is shaped like a semi-circle, so I rotated it until is dropped into place. Then I put back the glass plate and it was finished.

turntable inop due to broken glass tray.

  • Customer: Joseph from Pickens SC
  • Difficulty: Very Difficult
  • Time to Complete: Less than 15 mins
  • Tools Required: Pliers
  • 0 of 0 people found this instruction helpful
Put on safety glasses AND leather work gloves. Grab pliers. FIRMLY grasp the110 A/C power cord with jaws of pliers, squeeze and pull plug from 3prong power socket. Carefully press black bar on front panel to open oven door. Stand back so door doesn't strike your face . Lift out damaged glass tray with BOTH gloved hands..place in re-cycle bin. Open parts package carefully and install the NEW glass tray. Plug 3prong plug BACK into 110v outlet and press start button........Stand back! View the new glass tray turning in a circular fashion through the heat/radiation proof front door. Job well done!

Intermittent loss of power in open and closing door.

  • Customer: David from San Francisco CA
  • Difficulty: Really easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
Make sure 110v at the transformer. Activate switch controlled by the push button to open and close door. Push in the small metal arm on the switch with none metallic probe. If power is restored to microwave the switch is faulty and need replacement. One switch is not available, the whole 3 switch assemble has to be purchased.
All Instructions for the LRMP1270ST
1-15 of 19