UMC5200AAS - Instructions

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.

I searched a few sites for a repalcement for our model.
PartSelect was BY FAR the EASIEST! I just entered the model number selected the part and that was it.
Other sites just weren't so easy even with the model nimber.
Shipping was lightning quick and resonable for the part.
I'd definitly use them again!

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.

Ordered the switches from Partselect, arrive in two days. Had trouble removing the plastic connectors from the old switch terminals, one of the plastic protectors broke, but was able to reuse it. It took a little figuring out how to remove the existing switches. Must push in a tab and rotate the switch on a little pin, then remove. Must be careful not to break the plastic tabs holding the switches in place. Replaced all (3) switches at the same time. All in all it was pretty easy.

hardest part was taking the microwave down off of the wall to gain access to the diode. Thought if was the transformer but ended up being just a blown diode. remove and replace and bench test. that part took 15 minutes . moral of the story don't boil water under the side of the microwave that holds the electric components.

We got a a carbon steel but and drilled out the stews and put in regular screws. We also had trouble getting the cover back on and ended putting 2 more screws on the left side which had none. The installation was the easiest part of the installation.

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.

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!!!!

Information provided on the web site by Part Select, were helpful and encouraging to select and buy the part needed to repair the appliance. No doubt, a skilled person having background in the repair of appliances should attend such repair job.

Just place it in the slot. . . . . 5 Seconds,,,no problem

1. Remove the trim frame off of the front of the cabinet (4 Phillips screws). At this point, take glass plate and turntable frame out of unit. 2. Slightly lift the unit off the cabinet frame (which is attached to the cabinet) so the feet on the microwave allow the unit to clear the frame and then remove microwave from the cabinet. 3. Once slightly removed from the cabinet, unplug the unit before completely removing it from cabinet. 4. Take 2 Phillips screws out of the side panels. 5. Take about 6-7 T20 Star Pin screws out of the back of the panel. (This may require you to purchase this special tip if you don't have it in your toolbox). 6. Slide the microwave cabinet toward the rear of the unit (the front portion clips into the frame ... don't try prying it off because you'll damage the unit). 7. Completely remove the microwave cabinet housing. 8. Be careful not to damage or catch any internal wiring inside the unit while the cover is off. 9. Turn unit on it's back and remove 4-5 Phillips screws holding the bottom cover in place. Remove bottom cover. 10. Now notice that the turntable motor is completely exposed. 11. Remove the wiring harness from the motor (notice which connection clip has the black wire). 12. Remove the one Phillips screw holding the motor to the frame. 13. Clean around the area in case food spills may have gotten into the area. 14. Insert new motor, put Phillips screw back in and attach power connection. 15. From this point on, just reverse steps to re-assemble microwave and put back in cabinet. 16. Test new turntable motor. 17. Enjoy the smile from your wife because she can now use the microwave!

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.

removed microwave cover screws, unplugged motor, screwed on new one

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.

The turntable wouldn't rotate any more. The problem was the plastic roller guide (under the turntable glass) had cracked where it attached to the shaft. I installed the new part, it fit perfectly, now works great!