72183 - Instructions

After watching a few youtube videos, I used a phillips SD to take controll pannel off to access the switches that sense when microwave door is closed. Swapped out all 3 switched and mocrowave works like new. $20 fix (shipping included)

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.

Shut off water supply. Disconnect main supply line. Remove rear lower panel on back of refrigerator. Remove all tubing clamps on back. Disconnect leaking tubing from water supply valve. Remove water filter and unscrew/remove water filter housing. Replace tubing - connect to water filter housing then to water supply valve. Reconnect filter housing and filter. Reinstall lower panel, then main water supply line, then all tubing clamps. Turn water back on and check for leaks after discarding several glasses of water to fill filter. Job complete!

Fun and easy fix for my kids.

The countdown timer was working but no "cooking" happening. Did not hear the familiar sound of the heating part working.

Determined it might be some simple switches for under $15 dollars. Bought one of each. They allow the microwave to turn on/activate by signaling that the door is properly latched. My wife noticed that it was failing and then failed over the course of about a day. Several times where it worked, then did not work. The timer was counting down one time and then when she opened the door the microwave heating component turned on. Guess it had activated the switch as she was opening the door.

Procedure to repair
- Unplug
- Remove two screws on front top - allows you to remove the vent. Realized there was a charcoal filter there that I had never replaced so ordered that after the fix.
- Remove two screws to pull off the front right panel (area where your microwave buttons are) One at the top under the before mentioned vent and one under the microwave on the far right corner.
- Have someone hold the panel because wiring is to short to place it on a ledge while connected or take a picture and remove connections. I simply held it while my daughter undid the micro switches.
- Carefully remove micro switches. There were two "orange" button ones so I chose the top one to replace along with the green button one that I had ordered, so I simply pulled an orange from the bottom and a green from the top latch area. You may have remove the part that holds the switches since it was a little tough with the wires in the way and not knowing how the switches stay put.
- plug in new switches and place in the brackets that hold them in place
- reverse everything you did.
Viola - a working microwave vs purchasing a brand new for several hundred dollars or having to call in a technician.I love that my young kids did this project with me and we actually got it running. Don't like to have to throw away more items at the landfill.

Semi-Handy Man

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.

tested all 3 of the door switche for continuity, the top switch was faulty, replaced it,for approx $4.00 and saved a $350 dollar microwave.

I decided the door switch was the problem because 2 problems happened at the same time. I removed the 4 screws for the top outside cover and the 1 screw that held the control board. After removing the control board screw, I lifted it up and removed it. This gave me access to the 3 door switches. I then removed the 2 screws that held the plastic piece that holds the switches. This made it easier then to replace the switches.

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.

The heavy work is moving the fridge, then take off the lower plans. Use a bowel or cup for screws and the water line connector spacers so you don't loos them.
undo connections holding water line, including the bottom brakes for the solenoid. Reuse the spring around the lower waterline to prevent external wear on the line.

NOTE: remove the waterline connector spacers and save!
NOTE: you must compress (not pull) the connect to then pull the waterline out of the connectors.
NOTE: You must also remove the water filter and housing inside the fridge but this is easy.
MOTE: Test the line for leaks by turning on the water and then using the door water. The filter will need to refill so it may take a minute before water comes up. This line only have pressure when the door water is used or the ice maker needs to make ice.


After replacing the line, test the line for leaks by using the door water so the solenoid fills the lines

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.

Watch YouTube videos on this topic if you are uncertain before tackling the job. The right door was easy to replace. Just pull the gasket with your fingers and it will come off easily. Place new gasket over door and use fingers to press it inside the groove few inches at a time. Pay attention to gasket orientation.

The left door is a bit harder because you need to remove the mullion at the door edge using a screw driver. Remove two screws on the center hinge and then slide the mullion up to disengage. Then unplug the wires to remove the mullion. Replace the gasket as described above and replace the mullion reversing the directions shown above.

Could not believe how easy it was!

Removed old filter head, installed the new head

An easy way to get a refrigerator out from the wall is to use a tow strap or 1/2 to 3/4 in. rope. Throw a loop behind refer while keeping both ends in your hands. Let it settle down to the lower half of unit and pull using both hands. Comes right out.
Remove lower panel. Unscrew water valve from cabinet. Remove all tube holders Lay some rags down to catch a little water drainage.
Turn off water supply valve at wall. Unplug Power. Remove filter and filter holder. (one screw).
remove tube from valve by removing plastic C clip. Push plastic ring towards the valve and pull out tube at same time.
With the tube free, remove filter, then mount screw to remove the inside filter holder. When it is out, pull the tube doing the same process as the lower end. Pull tube out and replace with new one putting everything back in reverse order.
Before placing tube holders back on, turn on water to check for leaks.
After turning water back on and plugging in power, push refer back into place.
While I was there, I also replaced the hose from the wall to the refer.

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.

Removed the MW from the wall. Took the top screws off the air vent. Then removed the two screws holding on the display. I then moved the display to its side and it revealed the micro switches. I removed the plug in leads from the micro switch one at a time. I did this with all three micro switches only one at a time. I reinstalled everything and plugged it in. No more fans starting when the door is opened.