Your coupon for will be reflected when you check out!
✖
Your coupon for
✖
Hello!
You're visiting the PartSelect site in U.S.
Would you like to shop on the Canadian site?
Stay on this site
Go to Canadian site
✖
Model Number Locations
1Select Category Type
Select Category Type
2Select Product Type
Select Product Type
3Select {MODEL} Type
Select {MODEL} Type
Sample Model Number Tags
Model numbers can be made up of numbers (1005400, for example) or a combination of letters and numbers (LAT1000AAE). The model number will most likely appear on either a paper sticker or a metal plate. Your appliance's model number tag may look similar to the sample model number tags shown here (model number highlighted in yellow):
OEM stands for Original Equipment Manufacturer. Simply put, this means that the company who made your appliance is also supplying the replacement part for it.
OEM from PartSelect
Genuine brand name
Guaranteed to fit
Superior quality and durability
1 year warranty
Generic
Unknown manufacturer
No fit guarantee
Inconsistent quality and lifespan
Limited warranty and support
Troubleshooting
This part works with the following products:
Microwave
Microwave Oven Combo
Part# DE66-90106B replaces these:
DE66-90106B
Customer Repair Stories
Average Repair Rating: 4.4 / 5.0, 1 reviews.
What's this?
Sort by:
< Prev
1
Next >
Search filter:
Clear Filter
Your search term must have 3 or more characters.
Keep searches simple. Use keywords, e.g. "leaking", "pump", "broken" or "fit".
Sorry, we couldn't find any existing installation instruction that matched.
Microwave would not start when door closed. Sometimes you could push in or jiggle door and it would work for awhile and then it woud stop again. I knew it eas a door switch issue but wasn't certain which of the 3 or the body latch itself.
I removed the body latch assembly and found the bottom micro switch (NC) terminal burnt and loose. I replaced and working perfectly fine now. Easy diagnose and easy repair.
Ask our experts a question about this part and we'll get back to you as soon as possible!
3 questions answered by our experts.
Sort by:
< Prev
1
Next >
Search filter:
Clear Filter
Your search term must have 3 or more characters.
Keep searches simple. Use keywords, e.g. "leaking", "pump", "broken" or "fit".
Sorry, we couldn't find any existing answers that matched.Try using some different or simpler keywords, or submit your new question by using the "Ask a Question" button above!
Venicio
November 13, 2018
When I open my door the tray runs in reverse and light stays on
For model number Smh2117s
Hello Venicio, Thank you for the question. This normally indicates an issue with one or more of the Micro switches. Part Number: PS4225460 (1 required) or Part Number: PS4131192 (2 required). I suggest testing the switches with a multi meter to see if they have continuity. Hope this helps, good luck with this repair!
Switch causes the problem, it does not start the microwave but the timer still works and everything else seems to be fine and what is the function off all there switches
For model number Me16k3000aw
Hello Perry, Thank you for your inquiry. These are the switches that work with the control board to tell if the microwave door is shut, as the microwave will not start if the control board does detect the door is shut. You can test all 3 with a multimeter. Good luck with your repair.
Was this helpful?
Thank you for voting!
Rod
January 6, 2026
Are the 3 switches for the microwave door all the same or is 1 different than the other 2
For model number SMH1816S
Hello Rod, thank you for reaching out. According to our research, the three door switches are not all the same; one is electrically different from the other two. The door switch, part number PS4131192, situated at the top and bottom, are identical. These are normally open, meaning the circuit is open when the door is open and closes only when the door is shut. While, the door switch, part number PS4131191, located in the middle, is different. It is Normally Closed, meaning the circuit is closed when the door is open and opens when the door is shut. We hope this information helps!
