JMV8208CS0 Microwave - Instructions

Very easy repair because I had no parts for the job. I did not do the repair because PartsSelect keeps sending me the wrong parts and they do not have a human available to solve my problem. To make matters worse they will not refund my money.

Remove “over the stove” unit. Remove unit shell case. Unscrew and disconnect diode. Replace diode. Re-assemble. Put unit back in place.

remove 6 lower screws, removed lower panel,2 screws holding drive motor,lower motor, remove old coupling from inside microwave and replace with new coupling, re install motor,install lower panel and screws.no more sparks

Don't waste your time with other parts stores online. Partselect sells quality parts and they arrived 2 days early. I purchase a door switch from another online store and the switch was defective.

Unplug microwave
Remove bottom of Microwave with phillips screwdriver.
Remove connecting wires to Motor
Remove Motor (2 Screws) with Torx Wrench.
Transfer seal from old motor to new moter
Re-install motor
Connect wires
Reinstall Bottom of microwave
Plug back into outlet

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Removal of Phillip Head screws from Top vent and Control panel. Removed Torx head screw to remove entire switch assembly. Removed three wires to switch leads. Unclipped old switch. Replaced wires and inserted New switch in to clips. Attached assembly with Torx screw. Set Control panel back into place and screwed in top screw. Replaced upper vent with 2 screws.

Removed panel and installed upper and lower switches. I did this because it did not do it all the time. When I removed the switches I used a ohms meter to check continuity but they all checked out at first then I started playing around with the buttons on each switch by pushing in on them and letting off and found one when you pushed in and out three or four times that one switch would jump back and forth by ohms meter that was the bad switch. If any one else has that problem the switch might show continuity when you first test but click the switch button a few times to see if you get a different reading. Microwave up running. Thanks Partselect.

mounted bracket, case closed.

Remove the two screws to the plastic vent strip at the top of the unit. That exposes a metal cover (upper right) held in place by two more screws. (Found that removing the screw holding the key panel in place and moving that out of the way made for more work room) Remove the metal cover. The HV diode (visible) on one end is secured to the chassis by a screw. The other end is fitted to the HV capacitor. So unscrew one end and pull the HV diode off the capacitor. The replacement fits on like the old one came off. Very simple repair. But it would be safe to short the capacitor terminals to the chassis first. Noticed that it appeared the sparking was caused by the HV diode's outer casing being worn by the asbestos covered wire next to it and laying against it. I made sure the two were not touching, before putting the covers back on. Also, the problem started with an occasional spark when the MW started. It quickly deteriorated to a full, non-stop electrical sparking. You can hear it, smell it, and see it through the top vent. You don't need to remove unit to work on it.

This should be a 1 minute repair. However, there are a few issues. First, make sure you order the correct bulb. Mine is a halogen push in bulb, but the parts list showed a screw in bulb.
Remove power from the unit OR be sure that the light is turned off with the push switch.. The display will show the status as you rotate through the dim levels.
There is a single Phillips head screw holding the cover on the underside of the over stove microwave. carefully remove it. When loose the panel will drop down and you will find the old bulb in the center of the front of the opening. Remove the bulb. Now the important part. Carefully unpack the new bulb being careful to not touch the glass with your bare hands or fingers. Then insert the bulb into the socket.
If you unplugged the unit then plug it back in and push the switch to check that the new bulb works and is in the socket, then turn it back off.
Carefully lift the cover back into position and replace the screw. This is the hard part as you are working upside down and can't really see when it is lined up properly. When you have the screw back in and tight you are done. Press the light switch to enjoy your lit up stove again and put your tools away.
If you get your fingers on the glass bulb then clean it off with some rubbing alcohol and a paper towel to remove any finger oils before you put the cover back in place. Finger oils can boil with the heat of the lit bulb and cause the glass to explode. This holds true for any halogen bulb.

Part of the support was missing. I had to remove the two switches and put them in the new bracket
Had the switches reversed and started blowing fuses. Reversed them and changed the fuse and it started working.

Used a philips head screwdriver to remove one screw holding the light cover. Pulled out the old bulb and inserted the new one. Replaced the cover.

Unscrew lens and direct access to surface light cavity. Removed old light bulbs and replaced with new bulbs. Reassembled lens cover and turned lights on successfully. Took less than ten minutes.

Just opened the door and dropped in new part and viola!

Replaced bulbs easily.