Question about KitchenAid KHMS155LSS 1000 Watts Microwave Oven

1 Answer

Lights on, timer going, but not heating, no whirring sound & turntable not turning

My microwave is only 2.5 yrs old. It started having problem about 1 year ago. Sometimes it wouldn't start, but when we either push the door a bit or re-open & re-close the door, it would go. It has also some episodes when it started on it's own! A couple of days ago. It wouldn't work at all. When the start button is pressed, it will make a clicking noise as if it's starting, the light will come on and the timer will go, but no whirring noise, turntable won't turn & it does not heat up. This is the second kitchenaid (same model) I have. The first one was irrepairable (a part burnt inside, forgot what it was). Is this thing worth repairing? I paid a lot of money for this microwave, just to match the other appliances I have in my kitchen. Are Kitchenaid microwaves known for these problems? I don't think I want to continue spending that kind of money every 2 or 3 years. Advise, please. Thank you!

Posted by Anonymous on

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  • KitchenAid Master
  • 14,580 Answers

KITCHENAID are a budget make despite what you paid. it is better to buy a company that specialises in microwave ovens rather that a company that buys cheaply made products in China or Taiwan and badges them. As you know KitchinAid is a company that does all sorts of kitchen gadgets and utensils. Toshiba and Panasonic are the brand leaders. GE are long established.

The problem with yours sounds like a safety interlock problem. Every microwave has about 4 safety switches attached to the door so that it is impossible for the unit to be run with the door open. They are small micro-switches that are adjusted like a hair trigger so that as soon as the door moves, power cuts. If it is the switch, it is a cheap fix, if it is the Magnetron, it isn't, so diagnosis is needed by a reputable company. You can't take it apart as they use security screws because of the dangers of cooking yourself and the high voltages in the capacitor, and poisonous Beryllium in the magnetron. Your call on fixing or buying new.

Posted on Mar 11, 2017

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

MicrowaveSvc
  • 9047 Answers

SOURCE: KitchenAid KCMC155J

Sounds like a classic bad door switch or switch holder. If you or a friend decide to work on it, we have *critical* safety info, info on door switch testing and replacement, and oven disassembly info at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk You can find helpful exploded view diagrams and order parts by entering your base model number (without the suffix) here: http://tinyurl.com/gv383

Posted on Mar 11, 2007

SOURCE: SPORADIC HEATING

check highvoltage crcuit ,and check fan, and turntable motor,

Posted on Oct 20, 2007

Skill Will
  • 53 Answers

SOURCE: kitchenaid model:KHMS105B microwave hood combination

hi alan,

it sounds like the transformer is bad, which makes this easy, time for a new one. 12yrs is a good age for a microwave, average life is about 8-10 yrs!

Posted on Mar 21, 2008

MicrowaveSvc
  • 9047 Answers

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.

d:%5cele%5crepair%5cmicrowave%5cge_hotpoint%5cmini_manual_behind_grille_small.jpgAt 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.

Posted on Dec 07, 2009

MicrowaveSvc
  • 9047 Answers

SOURCE: kitchenaid microwave model KBMC140HSS03 will not

Your membrane keypad is shorting.

It comes as an assembly, so it's pretty easy to replace yourself. It is part number 4453420 and you can get it here for $235.33 plus shipping.

You can also find helpful exploded views at that link.

The picture below shows you how to unlock a typical membrane keypad connector.

34374fd.jpg

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

Posted on Jan 10, 2010

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