This video demonstrates how to test the voltage for a microwave light socket. If the light socket is not receiving proper voltage, the light may not work properly.
Line fuse
Main control board
Thermal fuse
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