KHMS1850SSS0 KitchenAid Microwave - Instructions

Loosened but did not remove screws that held up microwave over range,removed grill on top by loosening screws that held grill in place.removed small mesh grill on right side of microwave, this gave me access to capacitor ,diode is connected from one lead of capacitor to a metal plate ground,Disccarged capacitor to ground by shorting terminals to ground using a thick insulated screwdriver.Since the diode was screwed to the top of the metal plate I cut it out with a pair of side cutters .I then connected the new diode to the capacitor with my long nose pliers and groonded the other end to a more accessible part of the metal grounding plate.I then replaced all parts in reverse order.Works like a charm.

Set in place and installed 2 screws. Took less than 5 min.

Replacement was easy as outlined in the microwave manual.

easy to replace, just the same as cleaning the turntable and placing back in the micorwave;

Replaced bulbs easily.

Replacement of new vent grille took less than 5 minutes. I just wished Kitchen Aid made a product that lasted longer than 3 years. My part arrived very quickly, less than a week. Service was great and so was your price. I had no problem locating a replacement part. Kitchen Aid would not give me the parts number so I did not know if I was order the right part. But you photo really helped to narrow the correct part. Thanks

This wasn't really a repair, just an replacement of the filters, which is a regular maintenance requirement.

Looked up the Whirlpool Co. and ordered the part. It was quite simple. Arrived in 2 days and I simply placed it in the microware. It was very very easy!

E. Robinson

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.

Removed old screws and pieces of plastic. Replaced new grill vent with old screws. Could not have been any easier

All it took was 2 screws and it was done - could not have been simpler.

Remove two screws, remove grill/bracket, replace grill/bracket, replace two screws and your done. Recycle if You Can.

Opened door and put new plate in.

Placed order on Thursday evening and received Sat Am

Ordered a new motor. Removed the outside trim of the oven-microwave combo. 2 screws at the bottom of the trim. Removed the screws that held the combination micro and oven unit in place. Removed the top and bottom black plastic grill of the microwave. 3 screws each. Pulled the entire unit out about 1 inch exposing the screws at each side of the microwave that hold it in place.
Snapped off the top control panel which exposed the wiring connecting the control panel.
Unplugged a couple of wire harness units to free the control panel.
Be sure to label the units to know which goes where during reassembly.
Remove the microwave unit from the housing and place it on its side.
Remove the metal plate that houses the motor. 4 screws hold the motor in place. Disconnect the 2 wires from the old motor and you are ready to install the new motor. Be sure to TURN OFF THE POWER to the unit at the breaker box and remove the turntable from inside the microwave.

1. Remove two screws
2. Install new part
3. Replace two screws