My kitchenaid microwave KCMS185JSS-4 is running fine but does not heat the food. Is it worth trying to get fixed?

William Miller

• 9179 Answers
• Posted on Nov 26, 2007

SOURCE: Microwave stopped heating!

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This may have already been dealt with, but others can benefit from an accurate, thoughtful reply to this problem.

Concerning the problem Guest is having with the fan coming on when the door is open.

This is usually caused by either a bad door switch, a loose door switch mount, or a problem on the control panel.

Even though a door switch clicks, it may still be bad inside.

If you or a friend decide to look into it, we have critical information on safety, disassembly and door switches at our site, linked here on Fixya: http://tinyurl.com/yzjozk

Concerning the original problem of no heating:

Generally, the most common causes of a failure to heat are:

- bad door switches or door switch mounts
- loose connection at the magnetron
- problem or loose conneciton on the control unit circuit board
- bad magnetron or other high voltage part

If you or a friend decide to look into it, we have critical safety information, info on door switch diagnosis and replacement, and
disassembly information at our site, linked here on Fixya: http://tinyurl.com/yzjozk

SOURCE: MICROWAVE NOT HEATING

I have the same problem. Everything seems to work except it doesn't heat up food.
I remember last time when it was working. I pressed the start botton before I closed the door. So it didn't start automatically, and I pushed start and it worked(it still heat up the food), but it doesn't work now. Help Please!!!
I have a Whirlpool Gold GH5184XPQ.

Thanks in advance

William Miller

• 9179 Answers
• Posted on Nov 25, 2008

SOURCE: LG LMVM1935SB Microwave won't heat anymore!

With these symptoms, I would suspect you have a bad magnetron.

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 or the labor charge to do the work.

Some manufacturers will send you the magnetron to do it yourself. If nothing else, you can save about $75 by taking it to the shop yourself.

Here are some links you or someone you know can use (in order given) for test help, but read the safety warnings first:

http://www.gallawa.com/microtech/diode.html (if it is NOT shorted, it's probably fine)
http://www.gallawa.com/microtech/mag_test.html (continuity can be good even though it is bad!)
http://www.gallawa.com/microtech/xformer.html

To order Goldstar / L.G. parts, visit Vance Baldwin Electronics.

For more Goldstar / LG / L.G. help, call 1-800-243-0000 (M-F, 7am-8pm CT, Sat 8-5 CT) and choose the appropriate prompt from the menu or visit here. You can get warranty info & find a local authorized servicer.

L.G. / Goldstar owner's manuals can be downloaded here.

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

SOURCE: Everything works except heat

Sounds like you've had a failure in the microwave portion of the unit.

Microwave not heating problems when the timer/controller board appears to function properly, are related to the following components -

1) Diode
2) Capacitor
3) Transformer
4) Magnetron

SOURCE: My KCMS185JSS-5 microwave has no heat. It seems to

hi..Your micro hood is "shot".so it is not working properly.
The food may not be heating,but the electrical and the walls
of the unit might heat.This may cause sparking and melting
of the interior of the unit.
check it out..
thank u..
kindly rate my response..