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Randy, Home Appliance Technician
Category: Appliance
Satisfied Customers: 1300
Experience:  25 years of overall experience: Owner and technician of own appliance repair business.
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Model PNM1871SM1SS GE Microwave activates but does not heat.

Customer Question

Model PNM1871SM1SS GE Microwave activates but does not heat. Any ideas?
Submitted: 5 years ago.
Category: Appliance
Expert:  Randy replied 5 years ago.
Hello, my name is XXXXX XXXXX I am here to assist you. Does it do everything else okay? How old is the microwave?
Customer: replied 5 years ago.
Thanks Randy, yes, all else sounds like its functioning. Is 3.5 yrs old.
Expert:  Randy replied 5 years ago.
Okay does it make any unusual or extra loud buzzing noise when you run it?
Customer: replied 5 years ago.

not extra loud, but an unusual "rattling" sound.

Expert:  Randy replied 5 years ago.

Okay, your problem is the magnetron. This is the device that makes the microwaves to heat the food. What you need to do is to replace the magnetron and when you replace that you should also replace the high voltage diode since it can make the magnetron go bad. I am sending you a link to a diagram of your microwave and the magnetron is #61 on the diagram and the diode is #77 on the diagram. I am here for further assistance and thank you for your time and patience, Randy.

Randy and other Appliance Specialists are ready to help you
Customer: replied 5 years ago.
So Randy, is this a nontech handyman can install? Are there fuses to consider as well? Thanks for your help. I'm satisfied.
Expert:  Randy replied 5 years ago.

Sorry about the delay and if you are a good handyman, you can do it yourself. The first thing you will have to do is to take the microwave down from the wall. Let me know if you are up to it.