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Inoperative--power is good - Sharp Microwave Ovens

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What do you mean? need more info

Posted on Jun 02, 2008

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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If it is working but not heating, then test the high voltage capacitor,the rectifier diode.or the magnetron. If all this are fine, test the control board.If turntable is not running check also the door switch.

The diodeand capacitors can be tested. The capacitor must be allowed discharge before testing, or you risk to get electrocuted, evenif power is off.Capacitors can get discharged by shorting their two contacts.
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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.

You can also order from MicrowaveSvc , they also provide parts.

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Replaced with different microwave. Amanna microwave works fine on both circuits. Would not recommend Whirlpool for RV use.

Thanks

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I would suggest that you check the door switches and mounts. Here is a file to help: http://www.microwavedisplay.com/doorsw.txt

If those check out, I would suspect a shorted relay or shorted relay-driving transistor.

You may be able to find a schematic of the control unit at the Sears parts site. (They are closed during overnight hours CST)

The best place to order Sharp parts is Tritronics.

Feel free to contact me directly for more information & help.

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

William E. Miller
prototech@usa.net
http://www.microwavedisplay.com

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