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Kenmore model 721 f9 error??? Won't heat food

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Called Sears.

Posted on Sep 14, 2009

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Kenmore microwave model 721


is internal component in the 5265f335-26fd-465a-b47b-023d212fa9b2.gifc. board , you must replace it complete.
God bless you

Jul 20, 2013 | Microwave Ovens

1 Answer

Kenmore microwave 721 85032010 will turn on but won't heat or spin


Chances are that is just a defective top or bottom door switch or its mount.
See our help file on door switches here.
Also, that model number does not show up as a valid US Kenmore model.
Please check the tag in the cooking cavity or elsewhere n the oven and let us know if you need further help.

Jun 05, 2013 | Microwave Ovens

1 Answer

What does the code F9 means on a Kenmore Elite Microwave oven model 721-62362 manuf on March 2003


The F-9 error code indicates a defective control board, inverter or line voltage too high.
Read more: http://wiki.answers.com/Q/What_does_the_code_F-9_mean_on_a_Kenmore_Elite_Microwave_oven#ixzz1FMSrTmbU


Hope that answers your question and it won't be too expensive.
Check on ebay for prices.

Mar 01, 2011 | Kenmore Microwave Ovens

1 Answer

Model number 721 82364200. Code F9 continues to show up. Seems to be connected to clock. Works intermitting. Makes a noise when working but is very inconsistent. Not sure what to do.


Sorry to read about your problem, I hope this helps you out.

The F9 error code indicates an inverter failure. If you continue to receive the F9 error code after unplugging the unit for 5 minutes, the control system assembly may need to be replaced.

Note : Microwaves are not good do-it-yourself projects. Microwaves are inherently dangerous to service. Internal capacitors can retain a lethal electrical charge even when the microwave is unplugged. A microwave radiation leakage test must be performed on the unit following any repair.

I tried to help you. Please help me and Rate/Vote on my response. We take the time to answer your question. take the time to rate us.Thanks and good luck

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Dec 31, 2010 | Kenmore Microwave Ovens

1 Answer

Kenmore microwave oven model # 721 63684300 built 5/2003. Does not heat, after 25-30 sec. F9 appears on keypad. Everything else works---timer, clock, lights, horizontal turnstyle.


I checked the owners manual and it does not list the fault codes. Manufactures leave this information out of the manual most of the time so you have to call them for service.

Call 1-800-4-my-home (sears) and tell them the problem. You will also need to provide the m# so have that ready when you call.

Good Luck

Dec 20, 2010 | Kenmore 63682 / 63684 / 63689 Microwave...

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

Wont heat code f-9 model 721


Hello there
the dreaded F9 code means either a bad door switch or a loose door switch mount. this usually happens when people slam the door shut or it gets a lot of opening and closing ok? you can view the dissasembly and door switches at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk
ok?
best regards michael

Oct 06, 2009 | Kenmore Microwave Ovens

1 Answer

F9 err cd on Mod 721-80869400 be caused by metal tray in micro?


The F9 error code indicates a failed inverter. If resetting the unit does not help you will need to have the inverter & harness checked.


http://media.fotki.com/1_p,wbgdfgsrsttwqwbxgtqsskgwtqkq,vi/kgdfkfrkkxkfdtftrfb/1/1303472/5961857/image45625img-or.jpg

This can sometimes by caused by a power surge or glitch through the electrical lines.
You can sometimes clear this fault by completely unplugging the microwave for 1 minute.
Plug it back in and see if the fault code returns.
If it does, then you have an internal component failure that will need to be serviced by a technician.
Microwaves must be serviced by technicians due to the inherent dangers involved in repairing these appliances.
Internal capacitors can retain a lethal electrical charge even though the unit is completely unplugged.
A microwave radiation leakage test must be performed on the unit following any internal component repair.

It does not ALWAYS indicate a inverter control board problem however in other brands/models.
LG's service manual (for an example) suggests the f-9 code could be due to line voltage, magnetron, inverter module, "Relay2", or a loose connection between door/magnetron/control pcb.
Other indications might help narrow down these choices before having to pull out your multimeter and crack open the microwave case.
For example, if the microwave works, but heats slowly, then the troubleshooting manual narrows your choices down to magnetron or line voltage problems, and pretty much rules out the other possibilities.

Thanks for using FixYa - a 4 THUMBS rating is appreciated for answering your FREE question.

Aug 24, 2009 | Kenmore 63792 Microwave Oven

2 Answers

Microwave Won't Heat Food


My Kenmore 721.63259301 would not heat items up so I came here and saw the parts required and was just about to order them when I checked the online owners manual and found this. FULL FIVE-YEAR WARRANTY ON
THE MAGNETRON For five years from the date of purchase, if the
magnetron in this Kenmore microwave oven
fails due to a defect in material or workmanship,
Sears will repair it free of charge.
My microwave has a manufacture date of July 2009 so I will be taking it right to the closest Sears repair center for a free repair. I suggest everyone do the same.

Aug 18, 2009 | Kenmore 63792 Microwave Oven

1 Answer

Humming sound, F9 and dead


Seems like I answered this, but maybe it's a different poster.

The 721 model code means it's an LG/Goldstar-made oven and F9 indicates a problem with the inverter or magnetron.

Due to the lethal voltages involved, I do not recommend that a person without training and experience ever work on these models.

I would suggest you contact Sears for service.

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

Jul 19, 2008 | Kenmore 64683 Microwave Oven

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