Tip & How-To about Microwave Ovens
When your microwave makes loud noises, and they are eminating from the fan motor you will need to replace the motor. It no doubt has bad bushings. If not oiled periodically, and who does this, the motor will gall the bushings and make a loud screeching sound. Sometimes just oiling the motor after the sound starts will solve the problem, but most likely only temporarily. A permanent solution would be to replace the motor.
Unplug the unit. If your unit is not a freestanding unit and is mounted under the cabinet it will have to be removed from the cabinet first to continue. Usually this requires two people and the removal of two screws inside the cabinet above the microwave, tilting the unit down at the front and lifting the back of the unit off the mounting rail.
Remove all the screws from the rear of the unit case, perimeter and slide the cover off to the back. The motor should be visiable at this point. If it is not there could be a guard over it which should come off with one or two screws.
Go to http://www.repairclinic.com where you can get the new motor. They generally have parts for everything and at the best prices.
The mounting procedure should be obvious, either two or four screws. Remove and replace the motor. The motor wires should be spade lugs. Remove and replace one at a time to avoid any confusion.
Reassemble the unit by reversing the procedure listed above and remount under the cabinet if originally mounted under a cabinet and you should have a quiet running microwave.
Posted by Kim... on
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