I have a GE JVM240 spacemaker microwave oven. When I turned it on I heard a loud pop, the sound of the microwave seems louder and it does not heat. Everything else works fine. Moisture could of been a factor due to I was boiling a pot of water on the stove without using the fan at the time.

William Miller

• 9179 Answers
• Posted on Mar 06, 2009

SOURCE: I have a GE JVM240 spacemaker microwave oven. When

Actually, you should always use the hood vent exhaust fan when you're cooking on the stovetop, but I don't think that caused this problem, although it's possible.

Instead I would most strongly suspect a shorted high voltage rectifier diode, which is a pretty easy fix.

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.

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

You can find helpful exploded view diagrams and order parts by entering your full model number from the tag on the oven here.

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