SOURCE: Jenn-Air JMC7000 Microwave Stopped working
So it's dead? (No display, no inside lights, no beeps?)
A microwave can be dead for many reasons.
If it goes dead for a while during or after cooking then comes back on, the magnetron is probably overheating and causing the thermostat to open. When it cools, it closes the circuit and allows power through again.
If it's random, it may be a bad connection, usually on the control board or fuse holder.
If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.
If it went dead a few seconds after pressing the Start pad, that's usually a failing high-voltage transformer.
If the fuse is good, it may be an open thermostat or thermal cutout on or near the magnetron or on top of the cavity / body of the oven.
If you or a friend decide to look into it, we have critical safety information and disassembly information at our site, linked here on Fixya: http://tinyurl.com/yzjozk
You can find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383
Please write back with more details if you need further help.
We appreciate your thoughtful rating of our answer.
SOURCE: kenmore elite utra microwave 721.63763300
Your model number prefix of 721 means it's made by LG / Goldstar.
F9 code on an LG means either a bad door switch or 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, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk
You can find helpful exploded view diagrams and order parts by entering your full model number here: http://www3.sears.com (the 3 is correct)
We're happy to help and we appreciate your thoughtful rating of our answer.
SOURCE: Kenmore ultra elite microwave hood combination
F9 code can mean something different depending upon the particular model.....
1.) IF your Microwave uses "UltraWave technology"/"SmartWave technology"...Then either the Magnetron has failed or the Inverter board has failed OR maybe the control board has failed (HUH?).
2.) IF your Microwave does NOT use "UltraWave technology"/"SmartWave technology" then one or more of the door switches has failed.
** "UltraWave technology"/"SmartWave 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.
Note: This 'technology' may come in other flavors as well
SOURCE: kenmore elite microwave oven displays "Locked" and will not respond
My Kenmore Elite microwave (don't have the model number in front of me) also mysteriously locked its own keypad (we were sitting in an adjacent room, heard a strange beep, and got up to find the LED reading "Locked."). I pressed and held down the Stop/Clear button for ~10 seconds and it returned to normal.
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.
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.
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