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Microwave Not Working? Fuse Testing, Troubleshooting & Repair

Microwave not working at all? This video demonstrates how to test a fuse on a microwave. The line fuse and thermal fuse are commonly replaced parts for a microwave that won't turn on or is not heating.

Other commonly replaced parts for a microwave that is not heating or turning on:

Diode
Door switch
Main control board
Thermoprotector

All of the information provided in this part testing video is applicable to the following brands:
Amana, Frigidaire, GE, Kenmore, LG, Maytag, Panasonic, Samsung, Sharp, Whirlpool
Find my part

Microwave Disassembly :

How your microwave works:

For more DIY videos including part replacement and help finding your model visit the repair help section of our website: Microwave repair help