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Kitchenaid khms2040wbl2. When you start it, the inside light and internal fan comes on, but it doesn't heat and the turntable doesn't turn. I checked the hv diode and fuse and they test ok.

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5 Suggested Answers

MicrowaveSvc

William Miller

  • 9179 Answers

SOURCE: Microwave turns on, but no heat or turntable movement

Quite often this is due to a bad door switch. Opening the door while cooking (without first hitting the STOP pad) is the primary cause of door switch failure, but it may also be a broken switch mount. I have a text file called "doorsw.txt" which helps in diagnosing and repairing door switch problems, and a file called "safety.txt" which is of vital importance. It is 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 or at http://www3.sears.com

Posted on Mar 20, 2007

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Anonymous

  • 19 Answers

SOURCE: Ge Spacemaker microwave jvm240 wv Micro hood combo.

sounds to me like the magnatron has shorted out. i don't know of a way to test them unless you have some high dollar equipment. a continuity test prob wont tell you anything. what reading did you get on the cap when you tested it?

Posted on Jan 06, 2008

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MicrowaveSvc

William Miller

  • 9179 Answers

SOURCE: ge jes1358wk02 microwave...

When a high voltage fails, it shorts. Almost always. I've never seen one open, anyway.

If it's not shorted, it's probably okay.

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 connection on the control unit circuit board
- bad magnetron or other high voltage part (such as a shorted diode)

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, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

You can usually find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383

We're happy to help and we appreciate your thoughtful rating of our answer.

Posted on Mar 02, 2008

Anonymous

  • 1 Answer

SOURCE: Goldstar MV1501W not heating or turntable, light/display does wrk

micro switch is bad .remove top vent cover 4 screws,after removing plastic vent panel you will see 1 screw above display time window,remove this screw and lift up the complete button time control panel slightly and pull towards you to remove.there are 2 connections on this panel 1 is a 12 pin connector and a 2 pin power connection remove both put control panel aside.now there are 3 micro switches where the door pins close into the oven lock,remove 2 screws that hold the micro switch housing,on the bottom of housing you will see a small clip gently pull to the right and push back to remove .there are 2 switches on bottom of it and 1 on top. the 1 on top is normally open and closes when door is shut but like mine it stayed open and resulted in (light s display but no turntable)soon as i replaced upper microswitch it runs perfect.i hope this helps .MODEL MV1501W GOLDSTAR

Posted on Jan 01, 2009

David Hanks

  • 178 Answers

SOURCE: GE Microwave JE2160 does not heat

Does it make any noises that it didn't before it failed?? It could be a bad secondary interlock switch, cook relay on the PCB, HV circuit problem or bad magnetron. You need an ohm meter to troubleshoot. If you take the cover off, you MUST short across the High Voltage Capacitor terminals to discharge any possible residual charge to prevent shock hazard.

Posted on Sep 11, 2009

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If the inside light, cooling fan, and turntable are not all coming on when you hit "Start" to cook, then you likely have a bad top or bottom door switch, or that switch's mount is loose, misaligned, or broken.

See these help files:
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See this helpful text file.

If the inside light, turntable, and internal cooling fan DO all come on when you try to cook, but it does not cook, then you have a bad relay or connection on the control circuit board, which we can repair for $39.95. Details here.

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