JVM1490B - 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.

No actual repair was necessary. However I do want to thank PartSelect for sending a replacement so quickly.

the door lifts off two pins after you remove the top piece. I broke the choke cover prying it off. It has little plastic things that hold the cover on. I popped it off from the outside. I think you may not break the clips if you go from the inside on the top an bottom. There are 3 on the top and 3 on the bottom about 4 inches in and in the center. The sides come off real easy. Even breaking the choke cover it was still almost $200 cheaper than the repair man.

After removing the screws holding the 2 cover plates in position, I removed the halogen light bulbs with my fingers. Then I placed a paper towel around the first replacement bulb and lined up the two wire connectors with the two holes in the receptacle. I pushed in, but the bulb's probes did not slide into the receptacle. I spent five minutes aligning and pushing but to no avail. Then I removed the filter screen on the side of the receptacle, shined a flashlight beam on the receptacle, and with an improved view of the two holes in the receptacle, slid the bulb in. The second bulb was inserted in a few minutes, and the job was done. Whoever designed the halogen bulb was not as bright as Thomas Edison.

I unplugged it, removed the outer shell with torque bits and a screwdriver, drained the main capacitor, and began debugging the circuit with my fluke multimeter, found the bad primary interlock, googled the part number, ordered the part, received it in 2 days, replaced the interlock in about 2 minutes, and put the cover back on. Fixed. Saved me about $200 over buying a new unit and was grateful for partselect's great service.

-Keith Packard

This did not fix my problem. I've ordered a new microwave.

First off, UNPLUG THE MICROWAVE.

The fuse is located under the plastic grill at the top of the microwave. It's held on by two screws. Once you've removed the screws and taken off the plastic grill, you go to the right side of the microwave and remove another screw that holds a small metal grill in place. Removing the small metal grill is probably the toughest part of this repair. You kind of have to rock it back and forth a bit to get it to release. Once that's off, you can get to the fuse. I removed the burnt out one with a pair of needle nose pliers. I also put a small piece of cardboard under the fuse when I did this so I didn't accidentally drop it into the innards of the microwave. I did the same thing when I replaced the new fuse. I then plugged the appliance back in and made sure it worked. Once that was confirmed, I replaced both grills.

First and most important - unplug AC power 24 hours before service.

I removed the vent cover above the main door, then I removed the screw which holds the control panel in place, unplugged the main connector on the control panel so I would have enough room to work, removed grounding screw from the DIODE ASSY, pulled connector off the CAPACITOR with pliers, installed new DIODE ASSY.

After installation of DIODE and the control Panel, I plugged in the AC power and allowed the CAPACITOR to charge - this takes about an hour or so, then test. Works perfect!

Had to remove microwave from the wall. Then disassemble entire top assembly to get to the part. Easy enough to replace after that. Then just reassemble and reinstall. About 2hrs. total

Went to onlin source, found a couple youtube videos then went to the GE site which had a not-too-easy that find trouble shooting guide. It was extremely helpful as it described a fuse as a fix 80% of the time for touch paid failure. I really didn't believe it would b a fuse, but it was the cheapest fix, $8. I got the fuse and was surprised to fine there are two of them on this model. I took a guess and replaced the top one ( neither fuse was black or burned to indicate a failure but the top one was a bit mor greyish). put it all back together and it works fine.

took off upper grille and touch pad and removed the old line fuse and replaced with a new fuse ...turned on it is working fine...sources of help: UTube and GE manuel

first I had to remove a plastic cover on the back of the door to get to the thing your instructions said where to start. I figured out how to do that myself. Taking this cover off was difficult because I was afraid I was going to break it. After I got the cover off I noticed that most of the plastic clips that held it on were so crysalized ( I guess from the continued heat exposure) that the broke off. After removing a few screws I now was able to do what your instructions told me to how to remove this door plate. Again just some pastic clip held it in place. I could not unlatch these clips and remove this cover because you had to hold about 3 or 4 different clips apart at the same time and just myself couldn't do that by myself. So eventually I had to get some help with another person to hold all these clipps apart at the same time to get this plate off. After we got this off it was easy to change the door latch and put back together. So not knowing how to do this and your instructions not able to tell me everything I needed to know, I turned a 15-20 minute job into about 2 hours.

Removed screws holding outer shell. Pushed in door handle to identify faulty switch. Ordered part. Pryed switch out with screw driver and unplugged. reinstalled new switch. Presto. BUT... I did NOT use both hands while working on the microwave. I did not release the energy from the capacitor or whatever holds the killer amperage even when unplugged. It would be advisable to do this first. I did not because it seemed complicated, so I was EXTREMELY CAREFUL about not touching anything else inside the unit. I used one hand only so if I did touch something I would not get juiced through the chest. It was a piece of cake repair, but I would not go deeper without doing the discharge routine.

tried to replace rack holder but was unable. It did not turn easily and took a screwdriver to pry it out before replacing it. No instructions were available from manufacturer so we were afraid if we pried it out we would be severing different entry parts for the rack holder. Not a good scene!!!We finally pried it out but without instructions.

First removed the screw that holds the cover. Replace it and put the screw back on. Se acabó. So easy. I will go easy using harsh detergents that may had damage the cover.

Remove microwave and set on flat surface. Remove all screws on top. Remove all screws around back edge holding top on. Finally remove the screws on botton holding top on and remove top. On left side on top, remove 6 screws holding black channel in place. Also remove 3 screws holding metal top in place. Now lift black channel up and unplug 2 wires on cutout. Replace cutout and reinstall everything in reverse order. Worst part is taking microwave down and reinstalling.