Question about Kenmore Microwave Ovens
Kenmore 721.64689300 OTR Microwave is suddenly heating slower than previously. Wife saw F9 code after use last night. Since then it seems to be operating at about 80% power even though it shows 100% on the display.
This applies to several models:
"f9 model 721.63764300
Kenmore Elite 36 " over tne counter microwave is supplied by LG made by Gold Star, made in China. It's main problem is the high voltage inverter board supplyed by Sears Parts. If you get a F-9 code on your microwave display screen and the micro quits it's probably this board. Reset the machine by pulling the power plug and waiting an hour. If it is the high voltage board is at fault it will probably fail after 45 seconds of start up. This part is really hard to get at but is less than $100. A qualified technician should be able to remove and repair this item in less than hour. Some techs will quote you $300 labor, don't buy it, it should cost a $100 or less. No need to buy another microwave."
You can usually find exploded views and order parts by entering your model number at the Sears parts site.
BUT once you have the part number from the Sears site, you can often get the parts cheaper here.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
Posted on May 16, 2010
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Posted on Jan 02, 2017
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