Question about Kenmore 62622 Microwave Oven

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Kenmore microwave model 665.68681891 runs but won't heat

I experienced a brief power outage at my home today and now my Kenmore microwave model number 665.68681891 runs but will not heat. all functions on touchpad seem to work, but no actual heat.

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  • dachsie83 Dec 29, 2008

    I have the same model number. Just returned home after the holidays to find the power had been off briefly and the microwave is running! When you open the door it stops but the light stays on causing it to heat up. When I close the door it starts running again. Keypad shows locked and unable to reset. Please help!

  • sjk74 Feb 14, 2009

    I have the same problem, everything works but it doesnt heat anything!

  • sjk74 Feb 14, 2009

    I have the same problem as well.

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Test the high voltage capacitor, the rectifier diode.or the magnetron. If all this are fine, test the control board.

If it additionally does not spin and no light, then check also the door switch and fuse.

The diode and capacitors can br tested. The capacitor must be allowed discharge before testing, or you risk to get electrocuted, even if power is off. Capacitors can get discharged by shorting their two contacts.
Replace the magnetron if the checks and all of the high voltage component tests are good, but the unit still does not heat.

All locations, and description of this parts can be located using the diagram here: Counter top.

Parts must be tested to find out what is wrong.

Remember that microwaves are potentially dangerous devices if not repaired properly, the job must be done by a competent person.
A microwave energy leakage test must always be performed when the oven is serviced for any reason.

Regarding parts, contact the seller here to purchase parts. (here in UK).

Posted on Apr 27, 2009

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Posted on Jan 02, 2017

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Then let us know if the hard reset does not fix it.

But please reply back with your full model number so we can help you.

A full Sears/Kenmore model number has 3 digits, a dot, then 8 more digits, such as ###.########

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

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