Question about Kenmore 63792 Microwave Oven

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

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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.

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Posted on Sep 30, 2010

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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

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 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.

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Kenmore elite microwave displays F9 after a few seconds


I have the same problem. The sears guy told me that I needed a phillips screw driver and a torx adapter/driver to remove the entire microwave cover ( it slides off0 to gain acess to remove and replace the bulb.

Dec 29, 2008 | Kenmore 63792 Microwave Oven

1 Answer

F9 Error


You can find exploded views and order parts by entering your 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.

Dec 06, 2008 | Microwave Ovens

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

2 Answers

Kemore microwave model number 721.63763300


F9 is an error that indicates an inverter board or magnetron
has failed. With the F9 error cleared, start the oven and
listen for a ticking sound. The inverter will attempt to
'fire' the magnetron 5 times.(ticking sound). If can hear
ticking, replace magnetron. Check owners manual. Part may be covered by limited warranty.

Mar 26, 2008 | Kenmore 62622 Microwave Oven

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