JVM1640CJ - Instructions

I had already removed the old grease filters. Unwrapped the new grease filters and popped into place. No tools were necessary.

Unfortunately the filter upgrade for my microwave was not a fit. When I tried it in my microwave my microwave did not work. I thought I was going to have to have a repairman come and check what was wrong. I decided to put the original filter back in and when I did my microwave worked fine. Select Parts Has issued me a refund for the purchase I made that did not work. I am at present still researching for a filter that work for my microwave.

I ordered the part from this site (which was a little lower cost than another site but was described as a genuine GE part), and I looked up the instructions in my manual. It took about a week to get the new grille. There are 2 philips head screws attaching the grille. Just remove the screws, discard the old grille and put in the new grille with the same screws. The description on-line calls it a snap on grill which is a little misleading. It is attached with screws. I was fearful that it would not fit but it is identical to the old one. I am very pleased I did not have to replace the microwave even though it is 11 years old, it works.

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.

I went to LG website enter model number and was given a list of parts that need to be replaced with a percentage of which part fails the most. I order micro switch PS3522738 which arrived and PS3529293 was backordered. I installed the one that arrived. The microwave worked briefly. I reordered and waited for both switches to arrive and installed both. The microwave still doesn't work.

Remove the ice bin.
Turn the ice maker selection to "OFF"
Use small flat blade screwdriver to open the plastic ears on the electic plug in connectiion
Use #2 Phillips screwdriver to remove the screw on the front left side of the ice maker
Pull the ice maker forward until free of the two studs in the left side rear of the freezer wall
Check to see if the supplied water chute is the correct size for your application, if not remove the water chute from the old ice maker and place it on the new one.
Place the new ice maker in the freezer connecting the slots on the left read with the studs on the left wall
NOTE; IF THE ICE MAKER DOES NOT APPEAR TO BE LEVEL HORIZONTALLY REMOVE IT AND CAREFULLY REINSTALL IT TO ACHIEVE LEVEL
NOTE: ENSURE THE WATER DELIVERY TUBE RESTS IN THE RECEIVER TRAY
Reconnect the electrical plug ( needle nose pliers may be helpful in aligning the male plug with the female plug)
Move the selector from "OFF" to "ON"
Replace the ice bin and close the freezer door

This is an above the range microwave, use 2 people to remove it. I set it on a table and removed the outer cabinet. I then used jumper leads to discharge the capacitor. I removed the control panel (taking a picture to ensure proper wiring on assembly), then I removed the latch board. Once I had the latch board out I removed the monitor switch (which is the middle switch) and tested it for continuity. This is a normally closed switch. I tested the other two switches as well and found these (normally open) switches for continuity to be good and the monitor switch to have a short. This switch should show continuity when the door is open and should show no resistance when the door is closed. (Take care removing the switches) After I received the parts I installed them in the new Locker Holder and installed the latch board (ensure to follow the latch board adjustment steps located in the control board). I then attached the wiring to the control board and then plugged in the unit. I tested the unit to ensure it functioned correctly. I then installed the outer cabinet, and then installed the unit above the range (Use 2 people for this process). Overall an easy fix you just need to ensure you follow safety procedures (especially when dealing with capacitors.
Take a lot of pictures of the wiring and of the components and take care with the latch board or you'll have to buy a new one when all you really needed is a monitor switch.

DISCONNECT THE POWER CORD and discharge the capacitor
Leave unplugged overnight
Remove vent grille by removing the 2 philips screws
Remove the LED panel by removing 1 phillips screw
Disconnect all connectors that plug into back of the LED board completely
Remove the wires from the switches (3) at the inside edge of the microwave door
Gently remove each switch housing and test all three switches for continuity
Carefully replace non-functioning switches and reassemble the panel
GOOD LUCK

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.

Remove upper grill, then control panel, then 2 screws hold door switch mounting bracket, that will let you roll the switches out to work on them. Remove each switch by carefully pushing back retainer clips. Diode a long pair of needlenose pliers is helpful. The control board in front of capacitor comes out with a flat screwdriver and pry up. Removing grnd wires helps

Take cover off microwave. Check door switches to determine which one was faulty.Remove and replace faulty switch.

Used Google to locate parts dealers for GE.
Ordered from Partselect.

Part arrived a few days later and I easily put it in.

I thought the cost of this part was out of line but all others sold it for about the same.

I removed the microwave from the wall and observed where the sound came from, I then removed the part that was held by two screws, then I order the part on Part Select it took three days to receive the part and in 5 minutes I installed it.

Attached new grill by screwing the 2 screws into place.

A 2 yr old could do this snap out. Snap in less then. 30 seconds . What a shame and rip off on appliance repair shops - I called to do this rediculsley 40 second job and the wantvv$125.00!9t more. Omg. I’m a senior/ no wonder God punished the world wit Covid 19! Too many nasty infair. Buii I needed and rip offs.