Question about GE JVM1860 Microwave Oven
If the fuse is good, you probably have an open TCO or a problem on the control panel.
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.
You can usually find helpful exploded view diagrams and order parts by entering your full model number here.
There are four TCOs in this model. 3 have black views, and one has violet / blue wires connected. Ignore that last one.
It will read normally open, but the others should read normally closed.
To check the cavity TCO, you will need to pull the oven from the wall and remove the outer cover.
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 GE owner's manuals and installation instructions here.
If you think the problem is on the control panel, we repair these nationwide by mail for $39.95 postpaid in most cases in about a week or so.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
Posted on Jan 01, 2009
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Posted on Jan 02, 2017
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