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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

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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

Posted on Jan 19, 2010

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Posted on Jan 02, 2017

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MicrowaveSvc
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SOURCE: f9 code on mod 721-80869400 kenmore elite

This is usually inverter trouble, but it may be the magnetron, controller, wiring, etc.

There should be a "mini-manual" (tech sheet) hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting, testing, and locating components.

To find helpful exploded view diagrams and get part numbers, you can just enter your full model number at the Sears parts site.

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

Posted on May 20, 2009

  • 33 Answers

SOURCE: Kenmore microwave oven model # 721 63684300 built

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

Posted on Dec 20, 2010

  • 8909 Answers

SOURCE: What does the code F9

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.
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Posted on Mar 01, 2011

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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

For an f9 error code on my kenmore elite microwave oven what would be the approx cost for repair?


It would seem that you have a problem with the power supplying the magnetron. In other words the internal temperature is not changing quickly enough.
It would be wrong to estimate a repair cost as I cannot tell if it needs more parts or less.
Hope that helps.

Dec 10, 2010 | Kenmore Microwave Ovens

1 Answer

What does the F9 display mean for a Kenmore Elite Microwave Model 72163769300?


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


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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.

May 15, 2010 | Kenmore 63792 Microwave Oven

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

Kenmore elite mircowave model 721,62369201...has a F9 error. ?? The unit runs, but does not heat up.


HI. in most cases, this will lead to a failed Heating device(magnetron tube).It would be wise to check the Magnetron cutoff fuse to be sure of its integrity. if the fuse is blown, simply replace it. if the fuse continues to show continuity, replace the magnetron.

(((The fuse is located inside the unit along side the magnetron)))

Aug 19, 2009 | Kenmore 63792 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

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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