KW3A 16A 125V/250V Microwave Oven Door Interlock Switch Normally Close (1Pcs)

This little guy here saved me $200 dollars. Enough said. Ninja Indoor Foodi Grill lid mechanism stopped working and using chatGPT directed me to this item and a few YouTube videos later and the grill is working like new. The value is well worth the cost and it fit perfectly as the replacement switch.

This is all I needed to repair my microwave. Easy to replace and fits perfectly.

Not only for microwave ovens, it also fixes the Ninja Foodi 5 in 1 Air Fryer. For anyone with this Ninja Air Fryer this switch fixed mine. So far it works as good as expected. Well worth the money.

After my Frigidaire microwave started blowing the breaker and ultimate blew its fuse whenever we would open the door while it was running, we needed to fix it. After doing some research and reviewing the wiring diagram for these units, it became apparent that there is a physical cutoff built into the wiring for these microwaves such that the door mechanism should disengage the other two switches BEFORE this switch, which is normally closed (energizes it’s circuit when RELEASED rather than when pressed), is released, when opening the door. The problem that occurs with these microwaves is that the plastic door switch-holder assembly wears rather quickly from the door latch rubbing the “ramps” built into the assembly, resulting in a degraded operation that ultimately allows this switch to activate out of order, closing its short circuit path intended to halt any inadvertent operation of the microwave while the door is open. The unfortunate consequence of this switch activating is it will trip your breaker and/or blow the fuse in the microwave. Anyway, this replacement works perfectly to replace the original switch. Technically our original switch was still functional, but anytime you are closing a short circuit within a switch such that it is blowing fuses and tripping breakers, the switch internal contacts are more likely to get worn, so it was an easy thing to just replace this switch at the same time as replacing the door latch / switch holder assembly. Only reason this doesn’t get five stars is the price is too high for what it is.

The part fixed my problem with my GE microwave door switch where the circuit breaker would trip when powering on the microwave. However, sixths months after replacing it, it failed again. So i'm having to replace the same exact switch again. Bummer. The good thing is, it only takes about 5 minutes after you do learn how to do it the first time.

This door switch replaced one of three that had gone bad. Microwave now works like new again. It saved me the cost of a new microwave and the pain of installing it. If you have basic electrical knowledge, you should be able to install this switch with ease. There are plenty of instructional YouTube videos to help you.

It did not last six months and I have had to re-order and replace it with only minimal use. It is the same manufacturer name as the original but the original lasted four years. I suggest that you buy more than one.

Perfect replacement for middle (Normally-closed (NC)) switch of 3 interlock switches on GE microwave oven. Paid $7 for this part that otherwise would cost $35-40 or more thru GE or other online parts vendors, but required a lot of legwork to ensure it would work before ordering. [Caution: Saw other look-alikes that had wrong electrical lug dimensions.] Made by same manufacturer (Dongnan, from China), electrical specs are identical, critically important is that physical dimensions were all identical, including electrical lug sizes. And it works!