Question about KitchenAid KHMS105E Microwave Oven
Thank you for your help. My wife tells me yesterday that the microwave made a loud buzz, right as she was opening the door to take something out. Later when I tried it, I got a very loud startup buzz and then nothing. I removed the unit from the wall and replaced the fuse. Same thing happened again, dies immediately after pushing start button. The unit is a Kitchenaid KHMS105ESB-0 made in 1998.
I am very electronically inclined and have read enough on this site to speculate that it is the High Voltage Capacitor that is bad. I wanted to email you for other possibilities before I dig deeper into the unit and buy a $100 part.
It sounds like the high voltage capacitor.
You first need to be sure the unit is unplugged from the wall.
Assuming the HV cap is shorted, there wouldn't be any need to discharge it (*grin*) but it's good practice. Once you do that, you can remove the leads and ohm it out. That will tell the tale.
If that's not it, then it may be a bad high voltage transformer. *
You can usually find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383
We have critical safety, disassembly, and troubleshooting info at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk
* If yours is not a Kitchenaid KHMS105E then please post back with your correct info so we can best guide you.
We're happy to help and we appreciate your thoughtful rating of our answer.
Posted on Dec 07, 2007
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