Microwave Repair

Billu · #1 (**permalink**) 10-05-2011, 10:40 AM

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

Gene · #2 (**permalink**) 10-05-2011, 12:49 PM

Does it make any unusual noise?

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

Gene.

Billu · #3 (**permalink**) 10-05-2011, 02:06 PM

No it sounds normal, internal fan runs, light is on, table turns

Gene · #4 (**permalink**) 10-05-2011, 03:00 PM

Sounds like the magnetron is the culprit.

Gene.

Billu · #5 (**permalink**) 10-05-2011, 07:53 PM

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

Billu · #6 (**permalink**) 10-05-2011, 08:00 PM

Anyone aware of a warranty for the magnetron? I hear that some extend beyond one year?

Billu · #7 (**permalink**) 10-10-2011, 07:15 PM

Replaced the magnetron, still won't heat and now there is a louder noise when the unit is running

Gene · #8 (**permalink**) 10-12-2011, 01:14 PM

Check the rectifier (high voltage diode) - #1 on the diagram.

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

Gene.

Billu · #9 (**permalink**) 11-25-2011, 02:55 PM

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??

Billu · #10 (**permalink**) 11-25-2011, 03:17 PM

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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Microwave Repair

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