LMV2031ST LG Microwave - Instructions

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 left 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.

ordered on the part select web site, came quickly, order was correct

Repair was easy but you have to remove the screw at the top of the microwave (top left) in order to secure the far left tab with the hole in the tab. Place the grille in place, push to the left and then secure the screw you removed. Just remember that the mounted screw will need to be removed the next time you need access in order to replace the charcoal filter.

Assisted experienced and knowledgeable local repair shop technician. Had no issues during repairs. Microwave worked properly after repairs were completed.

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 directions 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!!

Over the stove microwave installed in top cabinet row.
1. Unplug device.
2. Two people to remove from wall/cabinet (remove two, large, top mounting screws and rotate entire microwave down and off the wall mount). Should be some wood spacers between top of device and bottom of cabinet.
3. Remove screws from sheet metal cover.
4. Remove one screw holding blowers in place and rotate out of the way, in order to gain access to 2 of 5 screws that hold the magnetron in place.
5. Unplug magnetron and remove the 5 screws.
6. Drop in new magnetron and re-assemble microwave in reverse order (steps 5-3).
7. Two people restore micro to wall/cabinet. Replace wood spacers, re-install two, large mounting screws (finger-tight). Test device. Secure the two large screws.

Check YouTube videos to confirm this process if needed.
First, be sure you get the rivet in case you need it. Mine was melted and that was not obvious at first glance. The cover was melted and sagging down and that couldn't be missed!
Use your fingernail to get under the rivet head and just pop it off. Twist the cover a little and it comes off, along with the fan. That was a surprise. Be gentle with the fan.
Put this fan inside the new cover, put the cover in place using the cover feet for alignment and put the rivet back to hold it in place.
The rivet comes with a socket to go on the inside of the cover. Remove the socket and put in into the chasis, install the cover, and pop the pin in place. Takes almost no time to do and sure looks better.

The wrong part was under $20. When I found out I had to replace the whole door for $150. I decided DYI was the way to go. I used JB weld and the door looks and works like a charm. Give plenty of time to cure all water needs to be cured out if exposed to microwaves. No problems so far.

Removed some cosmetic panels. Removed the assembly with micro switches. Examined the faulty switch by checking the clicking action of switch. Two others were ok by this method. Replaced the switch with new one. Works fine so far. Thanks to web site and YouTube videos.

well I unplugged the microwave one day prior to working on it. shock precaution smart way to do this job. very easy pullout the screws behind the unit pull off the outer casing. minor screws inside the unit you have to remove a couple things out of the way. unplug the magnetron and remove first gives you more room to work on the side panel to replace the micro switches. I only replaced one the bottom micro switch. only one bad, but since I was in there I clean the bulb and changed the magnetron any ways. I read other reviews and made my choice to do so. it works perfectly now. Thanks PartSelect for having parts.

I followed an old appliance repair forums post from 2008 that discussed this exact common issue with this LG model. It took me quite a while to find the info. Then I used the schematic diagrams on your website to find where the part was located inside the microwave. I removed the outer cover. I tested all components including the thermostat for continuity with a multimeter. I discovered there wasn't any continuity in the thermostat so ordered the part and replaced it. Everything works like a charm! Thanks for the great, fast service.

TOOK OUT ALL SCREWS FRONT OVER DOOR AND AROUND FRONT FRAME, LIFTED FRONT FACE OFF, FIRST CKD FUSE, BUT FUSE HAS A WHITE GLASS SO DIDNT KNOW IF IT WAS GOOD OR BAD, NEXT THING I SAW WAS THE HIGH VOLTAGE CAPACITOR, BUT CKD YOUR PRICES ON THE PARTS AND THEY WERE TWO OF THE CHEAPEST TO REPLACE, IT WAS REALLY GUESS WORK ON MY PART, SEE I USED TO WORK ON OVERHEARD CRANES IN A FACTORY, I LEARNED WHEN THEY OUIT WORKING IT WAS USALLY EITHER A FUSE OR A CAPACITOR, SO MY GUESS WORK WAS IN MY FAVOR, AND MY MICROWAVE CAME TO LIFE, I THANK YOU FOR THE NICE EMPLOYEES YOU HAVE WORKING AT PART SELECT FOR THEIR HELP AND GREAT SERVICE, DARRELL INGLE , HOUSTON TEXAS

It didn't work. It was too large. I need a glass tray NO LARGER than 13 1/2''. I received a 14" that was suppose to be comparable to the 13 1/2" glass tray that broke. The 14" is too large and wobbles. IF you have one that will fix my LG over the stove microwave Model # LMH 2016ST I would love to give it a try.

Unplug the microwave. Remove the Philips head and safety Torx head screws along the bottom of the sides and rear of the microwave which hold the black cover on. Lift the cover up at the rear and slide it backwards to disengage the tabs on the front top. Remove the cover. Discharge the capacitor by shorting the terminals to each other and then ground. Do this with a well insulated object and be aware there may be a pop when you do this. Keep hands, etc. on the insulated part of the object (screwdriver handle, etc). There's a lot of stored energy in that capacitor. I'd advise first checking the diode to make sure its not bad. Replace it if it is. The Magnatron is held in with a couple of screws on the top and sides. Unplug the connector and remove the screws. Remove the Magnatron. Installation is the reverse of removal.

Replaced entire door latch assembly with the three micro switches. Easier to replace entire latch assembly as individual switches do not remove easily from latch assembly. Had trouble removing front panel assembly. Parts ordered solved this problem.