Whirlpool W10727360 Microwave Door Switch OEM Part

After checking other reviews, we decided it was best to replace the interlocks, cam and all three switches. You're going to need a phillips screwdriver, star driver, small screwdriver and needle nose pliers. You need to remove the ONE Phillips screw above the control panel inside the vent. The contol panel is on hinges that you can slide up and towards you. Using caution remove the wires noting how they're connected. Pinch the top of the white connectors and wiggle them free. We couldn't get the power wires removed, didn't want to break the panel. Remove the ground wire with a Phillips screwdriver. Set the control panel aside. Using a Phillips screwdriver remove the two Phillips screws to remove the black plastic cover. There are two star screws that hold the interlock switch assembly in place. Remove one at a time We assembled the new parts by looking at the original assembly which made it much easier. Make sure the cam is in the proper position! You want small open space, just enough for the door piece to slide in between the plates. Be very careful with the switch wires they can be difficult to remove. We found the best way is to use a small flat head screwdriver and wiggle/pry them loose slowly. We removed one wire at a time and put it in the same location on the replacement switch assembly. This ensured we wired it correctly. Hook the switches back to the plate and secure with the star screw and driver. It took about 45 minutes to complete the repair. The microwave works perfectly now. No flickering light and turns off when the door is opened.

I have a Kitchenaid KMHC319ESS-0. On this model, the keypad is on the door, and the entire microwave front surface is one big door. I didn’t find any helpful illustrations or movies on the internet for this model, but I can share that it is unnecessary to uninstall the unit for door switch replacement. If you open the door, there are 3 screws holding the plastic indoor vent; remove those and the plastic, then the fourth, single screw holding the vertical plastic piece on the right of the microwave, then slide this piece up to disengage the tabs. From this point on, switch replacement is like what you see in the videos. If you are careful, you can save $ by buying three of the w10727360 switches instead of those two $20 switches. The left position of the top assembly has connections to all three switch terminals (common, NO, NC) but the right top switch and lower switch only have two of their terminals used. Carefully note in each case whether the connections are to the NO or NC terminal (they are marked on the switch body), then wrap a piece of electrical tape around the unused terminal and install. One piece of advice is to disconnect the wires so that the switch assembly is completely free of the microwave before trying to remove the switches from the assembly - it will make it much easier to not break the mounting tabs. When reassembling the plastic vent, either a pair of needle nose pliers or a magnetized screwdriver is needed to get that rightmost screw in place. This is only speculation on my part, but it appears that opening the door (for example) doesn’t hold one switch state until the door is subsequently closed, but instead cycles the switch, and the switch output looks like a logic state change to the computer. If you inspect the mechanism, you can see a bump on the switch actuator so that in the process of closing the door, the little button on the actual switch is depressed then released, not held in the alternate position. I bring this up because a switch that is sluggish might appear functional if checked with an ohmmeter, but it has to respond quickly when the plastic bump goes by, or the computer won’t get the correct information from the switch.

It is difficult (if not impossible) to remove the electronic switches from the hard plastic latches. I replaced all three switches and both the upper and lower latches I also replaced the main 20 amp ceramic fuse which blew out when the latch/switches failed.

I replaced the three switches and two supports inside the control panel.

Replaced door switch. The part from Appliance Pros came fast. Also replaced microwave fuse I blew.