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My Frigidaire microwave will not heat. All other functions are ok lights, timer, turn table etc. is there a internal

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Old 10-05-2011, 10:40 AM
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Default Fridigaire Over Stove Not Heating
Model Number: PLMVZ169GCA   Brand: Frigidaire   Age: 1 - 5 years   

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My Frigidaire microwave will not heat. All other functions are ok lights, timer, turn table etc. is there a internal fuse i can replace or is it just the magnetron?

FRIGIDAIRE Frigidaire/microwave PLMVZ169GCA


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  #2 (permalink)  
Old 10-05-2011, 12:49 PM
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Does it make any unusual noise?

Here are the breakdown diagrams and Replacement parts for FRIGIDAIRE PLMVZ169GCA Frigidaire/microwave | AppliancePartsPros.com

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Old 10-05-2011, 02:06 PM
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No it sounds normal, internal fan runs, light is on, table turns
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Old 10-05-2011, 03:00 PM
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Sounds like the magnetron is the culprit.

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Old 10-05-2011, 07:53 PM
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That works for me, the wiring diagram was hard to read I wanted to be sure there was not a fuse that was cheaper.

Thanks
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Old 10-05-2011, 08:00 PM
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Anyone aware of a warranty for the magnetron? I hear that some extend beyond one year?
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Old 10-10-2011, 07:15 PM
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Replaced the magnetron, still won't heat and now there is a louder noise when the unit is running
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Old 10-12-2011, 01:14 PM
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Check the rectifier (high voltage diode) - #1 on the diagram.

You can find more information in one of our previous threads: diode testing

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Old 11-25-2011, 02:55 PM
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ok - i replaced the rectifier it tested bad and the new one tests ok - still no heating - making a low toned buzz - different from before? i went back to the old magnetron based on the rectifier being bad - should i put in the new magnetron or is there another piece to the puzzle??
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Old 11-25-2011, 03:17 PM
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i decided to test the diode again and it is showing no continuity from either direction - my guess is something fried the new one? what else can i replace or test?
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