This micro-switch is designed for use in your microwave. The function of this part is to monitor the door latch position and communicate to the electronic control board whether the latch is open or closed. If your microwave does not provide heat, or will not start properly, you may need to replace the micro-switch. This part is approximately 1 inch in length and 3/4-inch in width. It is made of black plastic with two metal prongs. This is an OEM part sourced directly from the manufacturer. This part is sold individually. Be sure to disconnect the microwave from the power source before you begin this repair.
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Troubleshooting
This part works with the following products:
Microwave Oven Combo.
This part works with the following products:
LG.
Customer Repair Stories
Average Repair Rating: 3.3 / 5.0, 2 reviews.
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fan running with microwave door open
your part and YouTube video (which just happened to be my microwave) changed bottom microswitch...done and dusted in 20 minutes...your $14 part 3B73362F saved $350!!!
BAKER, from BROOKLYN, CT
Difficulty Level:
Really Easy
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers
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Microwave Timer would count down, but unit would not heat. Turntable not turning.
Replaced entire door latch assembly with the three micro switches. Easier to replace entire latch assembly as individual switches do not remove easily from latch assembly. Had trouble removing front panel assembly. Parts ordered solved this problem.
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2 questions answered by our experts.
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Carol
March 26, 2023
When I shut the microwave door and select how long I need to heat something up and then press start, the round glass on the bottom of the microwave does not rotate. The microwave is on but no rotation. Therefore, it is not heating.
For model number MV1526W
Hello Carol, thank you for contacting us. We have researched the model and would recommend checking the micro switch, part number PS3598700. It monitors the door latch position and communicates to the electronic control board whether the latch is open or closed. A faulty switch might not detect the door position properly. If the issue remains, the problem might be with the turntable shaft, part number PS3522924, or the turntable motor, part number PS3529213. We would suggest making sure the turntable is properly sitting on the shaft. We hope this helps, good luck with this repair!
Quit Heating. Everything else worked fine. Changed magnetron. works for 2 days then quit heating again. What would you try next?
For model number 72166469500
Hello Mike, thank you for reaching out. The problem seems to be with the diode, we would suggest checking it. The part number is PS3529603. We hope this solves your problem!
