Question about KitchenAid KBMC140HSS Convection/Microwave Oven

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Our KHMC107EWH-0 seems to be losing microwave power. It takes longer to cook and warm things, The convection part works fine. Is there any repair that makes sense on this unit, built in Oct 2001?

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6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: Amana Radarange Microwave/Convection over the stove

aco1560ac is the model #.It is an araman I need to know how it hangs on wall

Posted on Feb 03, 2008

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  • 9 Answers

SOURCE: does a microwave lose cooking

Yes. As the magnetron (The microwave generator) ages with use it becomes less efficient. As such it produces less powerful microwaves and loses penetrating power:::Spiceweasel.au

Posted on Apr 04, 2008

  • 112 Answers

SOURCE: Kitchenaid builtin microwave buzzing

I would recommend changing the diodes as well. This will usually take care of the problem.

Posted on Oct 25, 2008

THENTHEREWER
  • 131 Answers

SOURCE: How do I replace a lightbulb in my Kitchenaid microwave?

http://shared.whirlpoolcorp.com/product_literature/search_results.jsp?searchTerm=KEMS307DBS&siteCd=KAD#parts_list HEY ANDYCOOL,GO TO THIS LINK IT'LL SHOW YOU ANYTHING YOUR HEART DESIRES ABOUT THIS UNIT(DRAWINGS,USER MANUAL,PARTS LIST,INSTALLATION GUIDE,ECT.)SORRY BUT FROM THE LOOKS OF IT YOUR GONNA HAVE TO PULL THAT PUPPY.BUT YOU BE THE JUDGE OF THAT.GOOD LUCK,HOPE THIS HELPS!!!!

Posted on Nov 08, 2008

MicrowaveSvc
  • 9047 Answers

SOURCE: GE Microwave MODel JVM1540DM1WW

I would double check the owner;s manual and installation instructions.

You can download GE owner's manuals and installation instructions here.

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

Posted on Nov 21, 2008

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1 Answer

Panasonic Inverter combination microwave/convection unit. Microwave barely working, convection ok, problem part?


your issue sounds like low output from the magnetron, if this is the case replacement of the magnetron is the only solution, Here's a link for magnetrons on Amazon to give you an idea of the expense involved:
Amazon co uk magnetron microwave
you may decide to replace the microwave instead of repairing.

Jan 17, 2016 | Panasonic Microwave Ovens

1 Answer

Dead ge microwave


magnetrons work only when the unit is cooking
it smells like an insulation from overheating wire so could be a fuse and failing transformer
take it in for a proper diagnosis and quote but if it is over 2 years old the cost to repair could be more than a replacement unit

May 26, 2017 | GE JVM1790SK Convection/Microwave Oven

1 Answer

Auto Cook not working


If autocook is not working and everything else it, there is an issue with the sensor in the oven that detects the steam, The emission of steam is what triggers that unit to shut off. If it wont cook on any settings then the issue is with the microwave generator not putting out enough power. This could be from a lot of things.

Dec 16, 2013 | Sharp R959SLMA 900 Watts Convection /...

1 Answer

I have a kenmore microwave/convection oven model 721.64289300. The microwave stopped heating up but the convection works fine. Is this repairable.


I would suspect you have a failed cook relay on the control circuit board, but that can be economically repaired.

Details are here, along with a disassembly video.

Oct 16, 2013 | Microwave Ovens

1 Answer

Wolf convection microwave


see the next steps , use the VOM and fix it. God bless you

  1. Check the power diodeThis electronic component is responsible for transmitting current in one direction. If the diode becomes defective it will cause your microwave to not heat. Test the diode and replace it if necessary.
  2. High voltage capacitorResponsible for storing electricity, this part is a key component in any microwave. Remove, discharge, and test the capacitor to determine if it requires replacement.
  3. Damaged magnetronResponsible for generating waves and producing heat. When your microwave is no longer heating properly, replacement will be required.
  4. Thermal CutoffsExamine the thermal cutoffs on both the magnetron and the oven itself. Take off one of the leads and using a volt-ohm meter on RX1, check the terminals. If you get a result other than zero, replace the thermal cutoffs.

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Jun 17, 2013 | Microwave Ovens

3 Answers

I inherited a 1986 J.C. Penney Microwave and can't figure out how to program most of the features. I need an operating manual or a gnome.


The clock must be set before you can use the microwave. When you plug it in, it should read all zeros. Enter the time, and press "Clock Set." Time is in 12-hour format. There is no daylight saving time.

For basic microwave use:
1. Press "Power."
2. Press the keypad corresponding to the desired amount of power, e.g., "High," or "Defrost." (The numbers on the keypad have little words on them, like "Warm," "Med," and "High".)
3. Press "Time."
4. Enter the desired cooking time, e.g., "1-0-0" will be 1 minute; you could also do "6-0" for 60 seconds. You can do as little as 1 second, up to 99 hours 59 minutes. "1-0-0-0" would be 10 minutes. "2-0-1-2" would be 20 minutes 12 seconds.
5. Press "Start."

NEVER operate the microwave when it is empty. Put at least a glass of water in it. Never put a glass in it empty; make sure the glass has something in it, like water. Be careful when taking out a glass of water that's been heated; the water has been known, in rare instances, to "explode" and severely scald people.

It is okay to use the approved metal rack (it's coated with ceramic to prevent arcing) when using the microwave in microwave mode. Of course, the metal rack is also fine for use in the convection/combination mode.

"Defrost" cycles between microwave and nothing, microwave and nothing, microwave and nothing. You can hear the cycles. If defrost takes too long, try "Low." Try to avoid using "High," as it kills most nutrients in the food. Opt for "Medium" for slightly longer time; it'll be more evenly heated and healthier. Some things, like popcorn, require "high" power.

To stop the microwave in the middle of cooking, simply open the door. (There's no such thing as microwaves escaping the oven and bouncing around the kitchen and zapping you. I have a microwave tester, and the moment you open the door, all microwaves dissipate; the reading at the door is "Zero" once it's opened.) Or, press "Cancel." If you open the door, you may test the food, and if it needs further cooking, you may close the door and press "Start," and it will resume where it left off. If you're all done, just press "Cancel."

There is no way to disable the 5 beeps at the end of the cycle. If the baby is sleeping and you don't want to hear the beeps, simply open the door right before the beeps when the countdown is at zero. Pressing "Cancel" will give you one beep.

If you have the Combination feature, that cycles between microwave and convection heat, giving the best of both worlds (cooking inside with microwaves and outside with convection), for things such as a whole meats.

To use Combination:
1. Press "Combination."
2. Consult the chart on the microwave (below the keypad) and choose a number from 1 to 4, depending on what type of food you're preparing (i.e., lamb, pork, etc.).
3. Press "Time."
4. Enter the desired time, using the method described above.
5. Press "Start."

The Convection feature simply blows hot air across the food, at the temperature and duration that you set. It's a great way to toast slices of bread for the whole family at once, or bake a pizza.

To use the Convection feature:
1. Press "Convection."
2. Choose the temperature (the degrees are printed on the keypad, such as "350 degrees."
3. Press "Time."
4. Enter the length of cook time, using the method described above.
5. Press "Start."

Be sure to cover foods (with a paper towel or suitable plastic cover) that are prone to splattering. Don't let foods explode and get up into the motor. Clean the inside regularly with a soft sponge and mild detergent, NOT harsh or abrasive chemicals like Comet. Then rinse the soap off with a clean sponge.


Be sure to close the door firmly before cooking, but don't slam it. Slamming it will wear out the latching part, but being too gentle in closing the door may cause the safety switch to not engage, and the microwave won't work (it'll count down and the light will turn on but the motor won't run).


Note: the Convection feature uses more wattage than the microwave counterpart. The volts and amps are listed in the door jamb; multiply them together and you get total watts (although the actual amount will vary depending on your "power" settings).

Aug 07, 2010 | Microwave Ovens

3 Answers

Built-in Sharp Carousel II Microwave Convection Oven died.


There are a couple of safety thermostats in the oven to shut down power if something overheats. One is on the magnetron tube (the microwave source), the other is on the cooking cavity. These sometimes go bad. There's also a power line fuse that may have failed, or become loose in its mounting clips. These can be tested with an ohmmeter; they should all measure very close to zero ohms if they're good.

Another possibility is that the control circuit board in the oven may have failed. I have worked on several Sharp ovens where the power transformer for the board has gone bad for no good reason. If the board goes bad the oven may appear to be dead as well.

Microwave servicing is best left to professionals. If you're thinking of keeping this one, take it to a service shop (or call for home service) and get an estimate. Then decide whether to repair or replace.

Hope this has helped a little. Thanks for using Fixya!

Feb 02, 2010 | Sharp R-1874 Convection/Microwave Oven

1 Answer

Kenmore microwave Model 72 8975590 (750 W) is taking longer to heat food. Takes 3.5 min to bring one cup water to boil, previously took 2,5 to 3 min. Does the element lose power over time?


I can adjust the power level so that circuitry seems to be ok. The longer water boil time could be partially due to the colder winter temperature of the inlet water. We'll just cook the food a bit longer as long as the magnetron is still working.

Jan 21, 2010 | Kenmore Microwave Ovens

1 Answer

The oven will turn on and get warm (not up to set temp)not as hot as it should. I no longer hear the forced air noise from the fan/blower from the back of the oven? It will not cook food, in the time frame...


is your power setting up allthe way (10) is it a convection oven also? microwaves dont usualy have a temp. setting unless there is a probe pluged in inside oven to a jack on inside wall of microwave microwaves can also get old and lose power if so you can get cheep ones at wallmart

Jun 17, 2009 | Microwave Ovens

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