Question about GE Profile Spacemaker Over-the-Range Microwave

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Microwave suddenly went dead - completely black. All 'house' fuses are okay. Could it be a fuse in the microwave itself?

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Yes! that is exactly the problem, the fuse is a ceramic type "white body with silver ends" located near the high voltage capacitor, unplug and allow 30 seconds for the capacitor to dis-charge before removing the fuse. Keep in mind the reason for the fuse to blow is often caused a defective door switch, or you just might get away with changing the fuse.

Posted on Mar 15, 2011

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Posted on Jan 02, 2017

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Please help me


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A - This often is a stuck or faulty door switch and it has blown the interior microwave fuse.
Q - My microwave is completely dead.
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Jan 02, 2009 | Sharp R-242 Microwave Oven

1 Answer

Microwave completely dead


A microwave can be dead for many reasons.

If it goes dead for a while during or after cooking then comes back on, the magnetron is probably overheating and causing the magnetron thermostat to open. Then when it cools, it closes the circuit and allows power through again.

If it's intermittent or random, it may be a bad connection, usually on the control board or a loose fuse holder.

If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.

If it went dead a few seconds after pressing the Start pad, that's usually a failing high-voltage transformer.

If the fuse is good, it may be an open thermostat or thermal cutout on or near the magnetron or on top of the cavity / body of the oven.

If you or a friend 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: http://tinyurl.com/yzjozk

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

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