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Customer Questions and Answers for Micro Switch(primary) by LG

  1. Our Price $2.85
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    • Part Number: AP4437957
    • MFG Part Number: 3B73362F
    • Made by: LG
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Questions & Answers

For LG Micro Switch(primary) (Part Number: AP4437957)

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The part I'm looking for is, what I would call the "start switch". When the door is being closed, the lower Latch pushes against a lever, which fell off. Guess it's part of the "start switch"? What part # would that be? Thank You Riff Tiff

Riff Tiff for Model Number LG modle #LRM126050sw

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No power to microwave. Replaced and tested both fuses, tested continuity for all switches and tested capacitor. Could it be the high voltage transformer or is it some other part? Thx.

Microwaverepair for Model Number 721.66463500

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Once the fuse is replaced, the microwave oven works fine for a while and then the fuse blows again. If I replace it again, it works fine again for a short period and blows the fuse again.

Ed for Model Number 72166463500

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The microwave turns on when I shut the door, no heat, timer does not run....What part would I need to replace?

Julie for Model Number LMVM2277ST

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Microwave went through a cycle turning it self off. When closing the door it wanted to turn on but just humming only not the blower motor. The only key pad functions working are the light and exhaust. If it is the door switches can they be replaced without removing from the wall it is an above the stove model mounted to the cabinet. It may have been humming for 5 minutes before it was detected. Would this 5minutes damage anything having nothing inside it. There was a possible overheating smell coming from it.

Mark for Model Number LMV1630ST

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Microwave light and fan turns on when door is opened. I suspect a switch in the door is malfunctioning? Can you give advice on what switch (primary/secondary) I need? thanks!

Hans for Model Number kenmore microwave 721.66339

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LG over oven microwave. Fan starts when door is opened. Seems to work ok, just nervous about the fan coming on. Read that it could be a door switch?

Jay for Model Number LMV2063ST/01

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All the functions of the Micro Wave work except it does not heat the food. The toaster works. Thanks.

Randy J for Model Number 2003 Kenmore Micro Wave & Toaster Model # 721.63293

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The light under the microwave that luminates the the stove doesn't work. The switch activates the light but light doesnt come on. Have taken bottom off microwave to expose wiring for light tested wires to see if there is power and got no reading. How do I get access to switch on outside panel that I push to activate light? Is that my issue?

Dave for Model Number lmv1630bb

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The microwave light comes on, the timer runs down, but the tray doesn't rotate and the motor doesn't run. It was in the middle of a timed cook and it just stopped rotating and running, although the timer kept running down. Any ideas?

Lila for Model Number LG LRM1260SW

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