Question about GE JVM1870 Microwave Oven

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GE JEM31LWS Microwave.

Unit stopped working halway thru cooking function. All keypad functions work including timer but when start press, there is a click and then nothing. There is a small barrel fuse in line from the power in cord but it seems fine and if it was gone unit would not work at all correct?? is ther another fuse for the MAgnetron or is it possible the magnetron is dead. unit is about 10 years old.

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Yes, the fuse being bad would kill the unit totally.

Do the fan and inside light work when you try to cook?

If so, then the problem is in the high voltage section.

If not, then the problem is most likely a door switch or mount issue or possibly a problem on the control board.

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 someone you know 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

If you think the problem is on the control panel, we repair these nationwide by mail for $39.95 postpaid in most cases.

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

Posted on Mar 30, 2008

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