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Kenmore 721.64689300 OTR Microwave at 80% power

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.

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GE spacemaker XL1400


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Oct 01, 2012 | Microwave Ovens

1 Answer

A code F9 appears periodically what does that mean


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

You can also visit the link to troubleshoot the issue.

http://www.ehow.com/how_7987910_troubleshoot-code-f9-kenmore-microwave.html

Mar 03, 2011 | Kenmore Microwave Ovens

1 Answer

F9 error on screen and microwave won't heat


Hello :

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

good luck .

please rate !

Mar 31, 2010 | Kenmore 60654 Microwave Oven

1 Answer

My Kenmore Elite Microwave Model No. 721.64683300 does not seem to be heating well and will shut off and flash an F9 code. What does the F9 code mean


My Kenmore Elite Microwave Model No. 721.64683300 does not seem to be heating well and will shut off and flash an F9 code. What does the F9 code mean

Oct 07, 2009 | Kenmore Microwave Ovens

1 Answer

MICROWAVE DOES NOT HEAT.


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

Repair or Replace them.


Thanks.

Mar 10, 2009 | Kenmore 63663 Microwave Oven

1 Answer

MICROWAVE WILL NOT HEAT. F9 APPEARS IN THE DISPLAY WINDOW


F9 indicates a problem with the door latch.  There is a safety switch that will not allow the microwave to operate if it detects the door is not closed properly.  Even though physically it may seem the door is shut, the safety switch is not relaying the message to the onboard computer.  You need another door latch switch.

Mar 10, 2009 | Kenmore 63663 Microwave Oven

2 Answers

Kenmore Microwave Oven Sudden Power Reduction


I would be sure to check the microwave's outlet under a load.

One good way is to use a toaster or hair dryer for about a minute to see if they run at full power and run without their heating elements dimming.

If the power at the outlet is steady, I would suggest a hard reset. Unplug the unit for a minute or so. Then plug it back in, set the clock and try again.

If it still fails to heat properly, I would say you have a failing magnetron, and it would just be a coincidence that the failure began after the new wiring was installed.

If you need to order the magnetron, Sears sells it for $73.13, but you can get it for $41.84 here.

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

Feb 14, 2009 | Kenmore 62622 Microwave Oven

1 Answer

F9 error code


F9 is caused by either a bad door switch, a loose door switch mount.

Even though a door switch clicks, it may still be bad inside.

This can be caused by slamming the door or by habitually opening the door while it's cooking without hitting the Stop pad first.

If you or a friend decide to look into it, we have critical information on safety, disassembly and door switches at our site, linked here on Fixya: http://tinyurl.com/yzjozk

Nov 26, 2007 | Kenmore 63662 / 63664 / 63669 Microwave...

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