91141489890 Kenmore Microwave Oven Combo

Turned out the issue was easily solved by replacing a single, inexpensive fuse.

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 mic ... Read more rowave 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.

Per the instructions included with part.

After turning off the breaker to cut power to the oven, I opened the oven door and, using the PartSelect exploded diagram as a guide, I removed 3 screws from the underside of the control panel - I was then able to slide the panel up and out to remove it. Leaving all of the control wires (especially the ribbon) connected to control panel, ... Read more I saw the fan assembly mounted to the rear of the control box.

I noted the position of the two attached wires - black on top (or left), white on bottom (or right). Using a nutdriver with an extension bar, I unscrewed 4 screws holding the assembly in place. I removed the old fan and installed the new fan in its place. It was necessary to bend the new fan's legs out a bit to get them to line up with the holes. I reconnected the wires as mentioned above, then reinstalled the control panel.

I tested the oven by turning the breaker back on and letting the oven heat up to 450 degrees. The fan turned on as expected. After the oven cooled off, I reinstalled the 3 screws to secure the control panel.