Question about Kenmore 64663 Microwave Oven

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F-9 code in display

My Microwave gives me a F-9 code and stops working !?



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Re: F-9 code in display

F9 usually indicates a problem with the door switches or a broken door switch mount.


If you or a friend decide to work on it, we have *critical* safety, disassembly, and troubleshooting info (as well as a text file which helps in diagnosing and repairing door switch problems) at our site, which is linked at our listing here on FixYa:


You can find helpful exploded view diagrams and order parts by entering your FULL model number here:

Posted on Oct 12, 2007

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My Kenmore Elite over the range microwave model 85293 will only run for a few seconds and then it atuomatically stops and says F-9 on the display pad. It does not heat anything. What does F-9 mean?

Just had this happen - the repair guy says it is the inverter. And they have stopped making the part so it cannot be fixed!!! When did you buy your unit?

Jul 03, 2010 | Microwave Ovens

4 Answers

Model 72180883400 Microwave Oven F-9 Failure Code

If the unit is less then 5 years old i believe it is still covered it may be the inverter board or a grounded Magnetron tube. If you need any further assistance let me know. I would contact kenmore directly.

Sep 01, 2008 | Kenmore 62702 Microwave Oven

1 Answer

F-9 pops up - microwave stops after 5 seconds. This is a Kenmore Elite Microwave, made in 2003. Model 721 63683300

Hello :

The F-9 error code indicates a defective control board, inverter or line voltage too high .

WARNING : A microwave is capable to give you a serious electrical shock even when it's unplugged , so I recommend you to call a repair technician for help .

good luck .

please don't forget to rate !

Apr 04, 2010 | Kenmore Microwave Ovens

1 Answer


The F-9 error code indicates a defective control board, inverter or line voltage too high.

Repair or Replace them.


Mar 10, 2009 | Kenmore 63663 Microwave Oven

1 Answer

Model 72180883400

F-9 error code indicates a defective control board, inverter or line voltage too high. f the microwave runs for about 7 seconds with a ticking sound..then stops and shows "F-9", it is the magnetron that has failed. The fact that the unit starts and runs with the TICKING SOUND means the control board is sending signal to inverter board and the inverter board is sending signal to magnetron. Magnetron is covered by full 5 year warranty, inverter board is only 3 years.

Sep 01, 2008 | Kenmore 62702 Microwave Oven

1 Answer

Microwave won't run

F9 code means either a bad door switch or a loose door switch mount.

If you or someone you know decide to look into it, we have critical safety information, info on door switch diagnosis and replacement, and disassembly information at our site, and our link is at our listing here on FixYa.

You can usually find helpful exploded view diagrams and order parts by entering your full model number here.

(If not, please reply back with your brand and model number so we can help you.)

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Aug 03, 2008 | Microwave Ovens

4 Answers

GH7208XR Error Code #7

Behind the right front corner faceplate is a bag with the tech support info.
I used this and went through all the troubleshooting and got to the power inverter board. This board has the 2 red wires out of it that go to the magnetron. Instead of replacing the whole inverter module , I examined all the components on it. I found that there are 2 high voltage rectifier diodes attached to the transformer and 1 of them was not testing good. The diodes are UXC2B diodes.. Just clipped out the bad one and soldered in a new one.
Hope this helps..

Dec 21, 2007 | Whirlpool GH7208XR Convection / Microwave...

2 Answers


Need to know the entire model # on the microwave.

Oct 05, 2007 | Microwave Ovens

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