Question about Kenmore Microwave Ovens

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I need the service manual for a model 911.49489992 Microwave. This oven is part of an oven/microwave unit. I have ordered the magnatron but Sears did not have the service manual or instruction sheet for the installation. General instructions for this replacement should also suffice but I would prefer a PDF of the manual or installation instructions. Thanks.

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I am assuming the case from the microwave has been removed.
Ensure the capacitor is discharged!
Remove the connections from the rear of the magnetron and remember which way around they go, a photo on a phone camera is very usefull!
Undo the fixing screws and remove the magnetron from the cavity. Replacement is the reverse procedure.
Hope that helps.

Posted on Nov 06, 2010

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1 Answer

Can you remove the microwave separately without removing the complete oven/microwave unit? KEMS307DWH4 KitchenAid Wall Oven/Microwave combo unit


Hello Richard;

My name is Peter. I am a retired field service technician.

Your microwave is in a separate housing than your oven. You need to remove the border stripping holding the micro wave in the wall, then lift up in the front and pull out.

Go into the following website, put in your model number which is on a label after you open the microwave door.

You did not tell me what the problem is. Please advise so I can help you further.

Mar 26, 2016 | Microwave Ovens

1 Answer

Power works, everything seems normal but no heat


microwave ovens do not produce heat, they produce microwaves. the heat comes from whatever is excited by the microwaves. In your case i would bet that the magnatron (microwave tube) has become defective. If this oven is less than 5 years old, the magnatron may be under warranty. depending on the model it may be repaired at no cost to you. In the case of Kenmore (Sears) you would take the oven to their customer service dept and they will send it in for you for evauation. they will charge you $50.00 US this amount will be applied to the repair if you choose to have it fixed. If the Magnatron is bad and is under warranty, they will fix it, and return it to you along with a refund of you $50.00.

Mar 22, 2011 | RCA Microwave Ovens

1 Answer

Hit the start button and runs for 6 sec then code F-9 can't find manual


You didn't mention your brand or model, but F9 code on an LG sometimes means either a bad door switch or a loose door switch mount.

See this file on door switches.

If a switch is all you need, we offer a universal type for only $5 postpaid which you can order here.

Here is more info on F9 as it relates to some brands and models:

Sears Kenmore Whierlpool LG 721.63683300

"F-9 on this microwave IS inverter related. There is a service tech troubleshooting document stuffed in behind the control board cover which has some testing proceedures. My problem was the magnatron and checked out bad with the help of this document. It would run for a few seconds making clicks and then say F-9. It has been working great since I replaced the magnatron PN 6324w1a002c."

"f9 model 721.63764300
Kenmore Elite 36 " over tne counter microwave is supplied by LG made by Gold Star, made in China. It's main problem is the high voltage inverter board supplyed by Sears Parts. If you get a F-9 code on your microwave display screen and the micro quits it's probably this board. Reset the machine by pulling the power plug and waiting an hour. If it is the high voltage board is at fault it will probably fail after 45 seconds of start up. This part is really hard to get at but is less than $100. A qualified technician should be able to remove and repair this item in less than hour. Some techs will quote you $300 labor, don't buy it, it should cost a $100 or less. No need to buy another microwave.
"

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

Jul 02, 2010 | LG LMVM1945 Microwave Oven

1 Answer

Microwave has an error code F9 after running for about 5 seconds


Some quotes from other forums, but note that you need to look up your model to verify part numbers:

"F-9 on this microwave IS inverter related. There is a service tech troubleshooting document stuffed in behind the control board cover which has some testing proceedures. My problem was the magnatron and checked out bad with the help of this document. It would run for a few seconds making clicks and then say F-9. It has been working great since I replaced the magnatron PN 6324w1a002c."

"f9 model 721.63764300
Kenmore Elite 36 " over tne counter microwave is supplied by LG made by Gold Star, made in China. It's main problem is the high voltage inverter board supplyed by Sears Parts. If you get a F-9 code on your microwave display screen and the micro quits it's probably this board. Reset the machine by pulling the power plug and waiting an hour. If it is the high voltage board is at fault it will probably fail after 45 seconds of start up. This part is really hard to get at but is less than $100. A qualified technician should be able to remove and repair this item in less than hour. Some techs will quote you $300 labor, don't buy it, it should cost a $100 or less. No need to buy another microwave."

There should be a "mini-manual" hidden inside the unit behind the control panel or hidden behind the grille, which is very helpful when troubleshooting, & testing.

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

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

BUT once you have the part number from the Sears site, you can often get the parts cheaper
here.

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

May 25, 2010 | Kenmore Microwave Ovens

1 Answer

My Kenmore Elite Ultra Wave Technology microwave is displaying an F-9 error. What does that mean?


Here are a couple of quotes from another forum:

"Kenmore Elite 36 " over tne counter microwave is supplied by LG made by Gold Star, made in China. It's main problem is the high voltage inverter board supplyed by Sears Parts. If you get a F-9 code on your microwave display screen and the micro quits it's probably this board. Reset the machine by pulling the power plug and waiting an hour. If it is the high voltage board is at fault it will probably fail after 45 seconds of start up. This part is really hard to get at but is less than $100. A qualified technician should be able to remove and repair this item in less than hour. Some techs will quote you $300 labor, don't buy it, it should cost a $100 or less. No need to buy another microwave."

"F-9 on this microwave IS inverter related. There is a service tech troubleshooting document stuffed in behind the control board cover which has some testing proceedures. My problem was the magnatron and checked out bad with the help of this document. It would run for a few seconds making clicks and then say F-9. It has been working great since I replaced the magnatron PN 6324w1a002c."

Note that part numbers mentioned may not for your model.

You can usually find exploded views and order parts by entering your model number at the Sears parts site.

BUT once you have the part number from the Sears parts site, you can often get the parts cheaper here

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

May 25, 2010 | Kenmore 63662 / 63664 / 63669 Microwave...

1 Answer

F-9 error on my LG lmvm1945t microwave


The F9 problem in this microwave is a bad magnetron or inverter.

From other users:

"F-9 on this microwave IS inverter related. My problem was the magnatron and checked out bad with the help of (the tech sheet). It would run for a few seconds making clicks and then say F-9. It has been working great since I replaced the magnatron."

"f9 Kenmore Elite 36 " over tne counter microwave is supplied by LG made by Gold Star, made in China. It's main problem is the high voltage inverter board supplyed by Sears Parts. If you get a F-9 code on your microwave display screen2.gif and the micro quits it's probably this board. Reset the machine by pulling the power plug and waiting an hour. If it is the high voltage board is at fault it will probably fail after 45 seconds of start up. This part is really hard to get at but is less than $100. A qualified technician should be able to remove and repair this item in less than hour. Some techs will quote you $300 labor, don't buy it, it should cost a $100 or less. No need to buy another microwave."

The first thing I would suggest is a hard reset. Unplug the unit for several minutes or so. Then plug it back in, set the clock and try again.

If it fails again and you or someone you know decide to look into it further, we have critical safety information and disassembly information at our site, and our link is at our listing here on FixYa.

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.

At our Web site, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

You can find exploded views and order parts by entering your model number at the
Sears parts site.

The magnetron probably has an extended warranty beyond the normal one year parts and labor warranty.

So I would consult your owner's manual or contact Sears for details on the warranty.

To get your owner's manual, 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.

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

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.

Oct 06, 2009 | LG LMVM1945 Microwave Oven

1 Answer

Error Code F-9 Sears Microwave Model 721.64683300


It is not the most straight forward job and can be quite tricky for the uninitiated.
If its under warranty ( but I guess its not looking at the model # , ) return it!

The cost of a magnatron and a board is expensive (It is likely they are both involved in this as there sound like arcing) I would just replace the whole unit. Microwaves are not expensive items these days, but ones own life fiddling with electrics is still quite valuable.

Aug 19, 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

Microwave Ovens


The installation manual will cover that. If you don't have yours, you should be able to order it via Sears parts online: http://www3.sears.com/ You will need your full model number to look it up.

Mar 04, 2007 | Kenmore 62622 Microwave Oven

1 Answer

Inside light is burned out.


The Sears parts Web site has a ton of helpful info on this model, including disassrembly help. Looks like a lot of the actual service manual online! You can also order parts there. Enter your whole model number NN-S567BAS at http://www3.sears.com/ (the 3 is correct) Terrific!

Dec 26, 2006 | Panasonic NN-S567BA/WA/LA Microwave Oven

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