The oven works fine, replaced the control panel 5yrs ago, microwave worked fine up until today. Not sure where to begin.
Most likely causes - shorted high voltage rectifier, or failed high voltage transformer, or shorted high voltage capacitor, or shorted magnetron. If an odor accompanied the failure, high voltage rectifier or transformer most likely. All of these components operate on 4000 v, or more - with enough current to kill you. Make sure the unit is unplugged, and the high voltage capacitor is fully discharged before testing.
If you need further help, I’m available over the phone at https://www.6ya.com/expert/david_29ad5d1dd86564b0
SOURCE: buzz, plastic smell and no heat
Chances are you have a magnetron that's failing. GE had a rash of "underperforming" magnetrons on these units. They replace the magnetron, stirrer and high-voltage diode at no charge for parts as long as a GE-authorized service center does the work. Sometimes the unit gets run too long in a failing state and the waveguide and chassis of the oven get damaged. The bulletin shows you where tyo check. To see if yours is covered, see this bulletin: http://www.microwavedisplay.com/ge_mw_mag_kit_bulletin.pdf Otherwise, you need to contact GE Customer Relations at 1-800-386-1215 as soon as possible and tell them your problem and they will put you in touch with a local authorized servicer.
SOURCE: KitchenAid Superba combination built-in oven
It sounds like a stuck relay or other controller problem.
I don't have the service data on this one, but there should be a schematic or tech sheet / mini-manual either on the back side, behind the controls, or somewhere else inside.
If you or someone you know can locate them and scan and e-mail or copy & fax them to me, I can probably give you further guidance.
Please feel free to contact me directly.
We're happy to help you and we'd appreciate your
thoughtful rating of our answer.
William E. Miller, AS-EET
[email protected]
http://www.microwavedisplay.com
SOURCE: Microwave Oven Door Spring Replacement
Remove the front panel by removing the screws located on the inside of the door (note hold door inplace, since it is heavy and will fall out after screws removed). Unscrew screws located on bottom of plastic retainer (2 each) Remove tension spring. Note 2 are included right and left. Note color of spring on end, different springs for different door types, stainless, black,beige or white. Replace all in reverse order.
SOURCE: KitchenAid Microwave Model KCMS1555 does not work
Assuming your inside
light, turntable, and internal cooling fan all come on when you try to microwave, with the
symptoms you
have, I would most strongly suspect a shorted high voltage rectifier
diode or a bad magnetron, or a loose and possibly corroded connection
on the magnetron's terminal.
The diode is a fairly
cheap fix, and the mag will cost more.
If you or someone you
know
decide to look into it, 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.
If you don't find your mini-manual,
or if you want to look at it before removing the controller, you can
download it here.
Here are some links you
or someone you know can use for test help, but read their safety
warnings first:
http://www.gallawa.com/microtech/diode.html
(if it's not shorted or burned, it's
probably okay)
http://www.gallawa.com/microtech/mag_test.html
http://www.gallawa.com/microtech/xformer.html
http://www.gallawa.com/microtech/cap_test.html
You can find links to helpful exploded
view diagrams and part ordering help
here. I recommend that you bookmark that
link to your favorites.
Accessing some
components for testing and possible replacement will require you to
remove the oven from the wall.
If
so, the installation instructions are very handy, and it's best to have
two people since the microwave can be heavy and awkward.
You can download owner's manuals
and installation instructions for several brands (including Amana, Jenn-Air,
Kitchenaid, Litton, Maytag, Roper, Tappan, Thermador and Whirlpool)
here.
If
it's within the magnetron portion of the warranty (usually 5-9 years)
but out of the original full warranty (usually 1 year), then your
manufacturer will cover the part cost, but not the cost to visit you (usually $75 -90) or
the labor charge to do the work(usually $75 -90 more) . See the model tag in or on the
unit for the date of manufacture.
If
nothing else, you can save about $75 by taking it to the shop yourself.
We're happy
to help you with free advice and we'd appreciate your thoughtful rating
of our answer.
SOURCE: my Kitchenaid Superba kaw38avm726 microwave does not heat
Hi,
Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....
Microwave Oven Basic Troubleshooting Tips
heatman101
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