Question about Kenmore 62622 Microwave Oven

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Why would my kenmore micro wave model 721.66463500 just go dead, no power

My kenmore micro wave model 721.66463500 just went dead, no power at all, any suggestions?

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There may be a weakened connection around the main power supply 'Transformer'. Sometimes the connections can overheat but if they are removed and replaced it may again make contact. I've had a similar problem and found parts from similar brands to replace the connecting/wiring parts. I soon realized that I could have removed the extra pieces around the wires without causing any electrical problems. That is the minor repair. The major repair would be to replace one of the main features (large or small) which assist the transformer in power functions. Take your time examining the tiniest parts and pieces.

Posted on Jun 24, 2014

  • James Johnson
    James Johnson Jun 24, 2014

    There may be a weakened connection around the main power supply 'Transformer'. Sometimes the connections can overheat but if they are removed and replaced it may again make contact. I've had a similar problem and found parts from similar brands to replace the connecting/wiring parts. I soon realized that I could have removed the extra pieces around the wires without causing any electrical problems. That is the minor repair. The major repair would be to replace one of the main features (large or small) which assist the transformer in power functions. Take your time examining the tiniest parts and pieces.

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Posted on Jan 02, 2017

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raj somaiya

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SOURCE: Kenmore micro wave oven 1998 model with error code

The relay on control board is getting loose, so the f6 error is coming up..click this link for more help:-- http://technoanswers.blogspot.com/2011/06/kenmore-micro-wave-oven-shows-error-f6.html ----------- This should help.Thanks.Helpmech.

Posted on Jun 11, 2011

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Please write back with your brand and model number if you need further help.

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

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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
You can probably find an exploded view by entering your FULL model number here: http://www3.sears.com (the 3 is correct)

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

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It may also be a problem with a door switch or door switch mount.

If you or a friend decide to look into it, we have critical safety information and disassembly information at our site, linked here on Fixya: http://tinyurl.com/yzjozk
Please write back with more details if you need further help.

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

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