Question about Kenmore 63792 Microwave Oven

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Kenmore elite microwave dosent heat .It has a f9 error

Stopped working yesterday it runs dor 10 seconds then shuts down without heating and f-9 is displayed

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6ya6ya
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Posted on Jan 02, 2017

reg501
  • 413 Answers

SOURCE: F9 error

Your Microwave uses "UltraWave technology"
I'll explain a few things about this wonderful technology...
The control board (accepts the pushbutton commands) has to talk to the inverter board to tell it how much power should be applied to the magnetron. The inverter board will then power the magnetron and inform the control board if the magnetron is working OK.
If there is something wrong with the magnetron or inverter board or a there is a communication breakdown between the control board and the inverter board...WA-LA-----F9----

A pretty reliable test for the Magnetron is to operate the oven and listen for a ticking sound 5-6 times about a second apart. If you can hear the ticking....The magnetron has failed..if no ticking, the control or inverter board failed.

The Magnetron sells for about $78.00 and is simple to replace. Check your owners manual for limited warranty on the MAG and electronic parts.

Posted on Jun 12, 2008

MicrowaveSvc
  • 9047 Answers

SOURCE: Owners manual for Kenmore Elite Microwave Model 66462

A full Sears/Kenmore model number has 3 digits, a dot, then 8 more digits, such as ###.########

You can just enter your full model number at the Sears parts site.

On the resulting page, look to the right for the blue "View manuals" button. Click there.

d:%5cele%5crepair%5cmicrowave%5ckenmore_sears%5cview_manuals_button.jpgd:%5cele%5crepair%5cmicrowave%5ckenmore_sears%5cview_manuals_button.jpgd:%5cele%5crepair%5cmicrowave%5ckenmore_sears%5cview_manuals_button.jpgcaab351.jpg

That Sears-related site has many free manuals. While the manuals they list there are all free, they will ask you to register.

Many times, the owner's manual will have the installation instructions inside.

If yours is not listed there for free, you would have to order it through 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 Jan 18, 2009

MicrowaveSvc
  • 9047 Answers

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

  • 1 Answer

SOURCE: I have an error code

I would like to repair the kenmore mocrowave myself, it has the error code f-9. Do I need to let the micrwave sit for a wile so the hi voltage can disipate from the inverter or magetron

Posted on Aug 07, 2009

  • 1 Answer

SOURCE: My Kenmore Elite Microwave Model No. 721.64683300

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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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

1 Answer

I have a kenmore elite microwave and after about 8 seconds and f9 error apprears...please help


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.^%$

Mar 06, 2010 | Kenmore 63792 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

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

Have a 4 1/2 year old Kenmore Elite Untra Wave Microwave Hood Combination. Recently got an F-9 error code after about 10 seconds. Tried unplugging for over an hour and then plugging back in, but got the...


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.

Mar 16, 2009 | Kenmore 63682 / 63684 / 63689 Microwave...

1 Answer

Microwave not working properly


The F-9 code indicates that there's an inverter board failure. A bad magnetron will also make it think the board is bad. The inverter board takes the place of the High Voltage Transformer, Capacitor and Diode which other models have. Parts and labor is probably around 300-400. It's not too hard to do, Pulling the micro off the wall is the hardest part.

Mar 11, 2009 | Kenmore 62622 Microwave Oven

2 Answers

Sears Kenmore Elite Microwave F-9 Error


My guess is that it is the main transformer that has developed a fault. If the insulation has broken down - it will arc there instead of the magnatron. Or it could be the magnatron itself. Both are prime suspects - and expensive to replace.

Unless you are particularly attatched to this - I would buy a new unit - and sell the turntable plate to recoup your losses.

Feb 04, 2009 | Microwave Ovens

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...

2 Answers

F-9


Need to know the entire model # on the microwave.

Oct 05, 2007 | Microwave Ovens

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