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Model: 721.80039700	Brand: Kenmore	Age: 1 - 5 years
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bobmert		#1 Posted : Wednesday, July 18, 2012 1:47:17 PM(UTC)
Rank: Member Groups: Registered Joined: 7/18/2012(UTC) Posts: 1		When I try to use it runs real slow and hums. Will not heat anything. The exhaust fans also runs real slow . Seems like it is not getting the proper voltage. I plugged it into another outlet and same results. I would appreciate any help to my problem. Thank You Bob


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Simon / APP Team		#2 Posted : Wednesday, July 18, 2012 4:18:11 PM(UTC)
Rank: Advanced Member Groups: APP Team Joined: 2/12/2012(UTC) Posts: 5,556		Hi. There is the short some where inside. Take the cover off and remove the contacts from the magnetron. Plug in and turn on. If the humming stops - replace the magnetron. If not - check the diod, capacitor and transformer. Make sure the capacitor is discharged before doing anything. Thank you. Post the results. Simon.


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