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2 questions answered by our experts.
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Fred
September 8, 2023
How do I change the fuse?
For model number PT970DR2BB
Hello Fred, Thank you for reaching out. Before you start this repair, ensure that the microwave is unplugged, and the capacitor is discharged. A capacitor stores large amounts of electricity even after your microwave is unplugged. Using a Philips screwdriver remove the exhaust vent cover. To the right next to the display, remove the metal cover. Behind the controls you will see the fuse. Remove the old fuse and insert a new one in the fuse holder. You may need needle pliers to reach the fuse. Replace the metal cover and the vent cover and plug in the unit. We hope this helps!
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Fred
September 9, 2023
Microwave makes humming noise when you close the door. When it is off.
For model number PT970DR2BB
Hello Fred. Thank you for writing in. A loud humming noise from your microwave is a sign of a faulty Diode part PS239740. The diode is responsible for supplying the magnetron with power. Good luck with your repair.
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Turned out the issue was easily solved by replacing a single, inexpensive fuse.
First off, UNPLUG THE MICROWAVE.
The fuse is located under the plastic grill at the top of the microwave. It's held on by two screws. Once you've removed the screws and taken off the plastic grill, you go to the right side of the mic
... Read morerowave and remove another screw that holds a small metal grill in place. Removing the small metal grill is probably the toughest part of this repair. You kind of have to rock it back and forth a bit to get it to release. Once that's off, you can get to the fuse. I removed the burnt out one with a pair of needle nose pliers. I also put a small piece of cardboard under the fuse when I did this so I didn't accidentally drop it into the innards of the microwave. I did the same thing when I replaced the new fuse. I then plugged the appliance back in and made sure it worked. Once that was confirmed, I replaced both grills.
