Question about GE Spacemaker JVM1640SJ Microwave Oven

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Microwave not heating.

Everything appears to be working (light, turntable, fan, etc.), but there's no heat.  When I press the "1" (express cook) everything sounds fine for the first second, then when the display switches from "EXPRESS" to start the timed count-down, an additional (new) low-level hum starts up.  Any suggestions?

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Re: Microwave not heating.

Check magnetron related circuit and replace magneron, check condencer, diode and etc.,

Posted on Oct 28, 2007

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