MMW9730AB02 Maytag Microwave - Overview

Removed and replaced above named parts, rewired.Be sure to tighten all nuts that secure wires. I believe this is what caused the problem.

I used a Google search to show how to access the area behind the front panel. There was a folded paper copy with a schematic and wiring diagram in that space.Then I used a multi-meter to determine which of the THREE micro-switches was causing the problem. I called your help line and ordered a replacement switch. The switch was delayed in transit so your agent credited me with the cost of shipping.

When the part arrived, it had three terminals instead of two as shown in the on-line picture but that did not cause any difficulty in using it. It took about 20 minutes to remove and replace the old switch.

All seems to be working well now.

Finding which of the THREE switches was the problem was the most difficult part of the repair. All three "clicked" but the defective one did not click as easily. It needed to be depressed more than the door latch can would provide. Old age?

Remove the oven door. Remove 3 self tappers on rear wall of oven to take off a round access panel. Pull out a pre-cut rectangle of insulation. Next I removed the 2 screws holding the sensor in place. Pulling the sensor out a bit told me I was "touching" the correct wires in the SMALL rectangular opening. The wires are not visable and 2 hands do not fit in this small opening.I looked at the NEW sensor to see the release on the sensor plug. Slip the angled needle nose into the opening and grasp the plug/release side. The plug pulled apart easily. The sensor wire pulls out with a little bit of twisting to fit it out the hole. The new plug pushes in and has to be worked down to where you can reach it. The same angled plier works to re-attach it. It takes longer to read this than to do the job. Best of luck, Al