Microwave incandescent  light bulb, 40 Watt. * Special Note* Manufacture recommends unplugging microwave prior to replacing light bulb.

Light Bulb

Grease Filter

Charcoal filter. Measures approximately 5 1/2" x 5"

Charcoal Filter

Glass Tray

Dryer door switch assembly. If the dryer does not start then the door switch could be defective. This switch also replaces the two wire switch.

Door Switch

Glass Tray Support

Aluminum exterior grille, 25-3/4 X 15-1/2 inches

Vent Grille

Protect internal parts with this genuine OEM waveguide cover, part number 5304523276, for select Frigidaire Microwaves.

Waveguide Cover

Halogen G9 Light Bulb, 120 Volts 40 Watts 60 HZ

Halogen Lamp

Door Handle

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Microwave light bulb not working

A microwave light bulb not working could be caused by a defective power supply board, although this is rarely the case. Before replacing the board, check the light bulbs, sockets, and wiring. If these parts seem to be working properly, test the power supply board with a multimeter to determine if it sending the correct voltage to the light bulb socket. If the board is not sending enough voltage to the light bulb socket, replace the board.

Microwave producing a burning smell

If you've confirmed the oven cavity has been cleaned of all food debris and the waveguide cover is in good condition, a defective power supply board could be one of the components producing a burning smell. You should inspect the board for any burn marks or a shorted component and replace if necessary.

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Is your microwave sparking or arcing? This video can help you discover the cause.

What Causes a Microwave to Spark and Arc?

Microwave shuts off after a few seconds? This video provides information on how to troubleshoot a microwave and the most likely defective parts associated with this problem. Commonly replaced microwave parts: Turntable Motor Touchpad Control Board Magnetron Diode Transformer Fan Motor

Microwave Shuts Off After A Few Seconds — Microwave Troubleshooting

Microwave sparking or arcing? This video provides information on how to troubleshoot a microwave and the most likely defective parts associated with this problem. Commonly replaced microwave parts: Turntable Motor Touchpad Control Board Magnetron Diode Transformer Fan Motor

Microwave Sparking/Arcing — Microwave Troubleshooting

Microwave display not working? This video provides information on how to troubleshoot a microwave and the most likely defective parts associated with this problem. Commonly replaced microwave parts: Turntable Motor Touchpad Control Board Magnetron Diode Transformer Fan Motor

Microwave Display Not Working — Microwave Troubleshooting

Microwave turns on by itself? This video provides information on how to troubleshoot a microwave and the most likely defective parts associated with this problem. Commonly replaced microwave parts: Turntable Motor Touchpad Control Board Magnetron Diode Transformer Fan Motor

Microwave Turns On By Itself — Microwave Troubleshooting

Microwave door won't open? This video provides information on how to troubleshoot a microwave and the most likely defective parts associated with this problem. Commonly replaced microwave parts: Turntable Motor Touchpad Control Board Magnetron Diode Transformer Fan Motor

Microwave Door Won't Open — Microwave Troubleshooting

This video is a compilation of 5 different tips to help maintain and make sure your microwave is performing and working efficiently. Don't forget to like and comment on this video and subscribe to our channel!

5 Tips For Your Microwave - Tech Tips from Repair Clinic

Microwave not heating? This video provides information on how to troubleshoot a microwave oven and the most likely defective parts associated with this problem. Commonly replaced microwave parts: Turntable Motor Touchpad Control Board Magnetron Diode Transformer Fan Motor

Top Reasons Microwave Is Not Heating — Microwave Oven Troubleshooting

This video recommends that viewers use steam from microwaved water to help clean the appliance. Don't forget to like and comment on this video and subscribe to our channel!

Boil Water in Your Microwave - Tech Tips from Repair Clinic

This video reminds viewers to replace the charcoal filter in their microwave. Don't forget to like and comment on this video and subscribe to our channel!

Replace Microwave Charcoal Filter - Tech Tips from Repair Clinic

This video recommends that viewers use a putty knife to remove microwave trim. Don't forget to like and comment on this video and subscribe to our channel!

Removing Microwave Trim - Tech Tips from Repair Clinic

Microwave not working? This video provides information on how to troubleshoot a microwave oven and the most likely defective parts associated with this problem. Commonly replaced microwave parts: Turntable Motor Touchpad Control Board Magnetron Diode Transformer Fan Motor

Top Reasons Microwave Is Not Working — Microwave Oven Troubleshooting

Microwave turntable not turning? This video provides information on how to troubleshoot a microwave oven and the most likely defective parts associated with this problem. Commonly replaced microwave parts: Turntable Motor Touchpad Control Board Magnetron Diode Transformer Fan Motor

Top Reasons Microwave Turntable Not Turning — Microwave Oven Troubleshooting

Microwave loud/noisy? This video provides information on how to troubleshoot a microwave oven and the most likely defective parts associated with this problem. Commonly replaced microwave parts: Turntable Motor Touchpad Control Board Magnetron Diode Transformer Fan Motor

Top Reasons Microwave Is Loud or Noisy  — Microwave Oven Troubleshooting

Microwave buttons not working? This video provides information on how to troubleshoot a microwave oven and the most likely defective parts associated with this problem. Commonly replaced microwave parts: Turntable Motor Touchpad Control Board Magnetron Diode Transformer Fan Motor

Top Reasons Microwave Buttons Not Working — Microwave Oven Troubleshooting

Microwave light bulb not working? This video provides information on how to troubleshoot a microwave oven and the most likely defective parts associated with this problem. Commonly replaced microwave parts: Turntable Motor Touchpad Control Board Magnetron Diode Transformer Fan Motor

Top Reasons Microwave Light Bulb Isn't Working  — Microwave Oven Troubleshooting

Microwave exhaust fan not working? This video provides information on how to troubleshoot a microwave oven and the most likely defective parts associated with this problem. Commonly replaced microwave parts: Turntable Motor Touchpad Control Board Magnetron Diode Transformer Fan Motor

Top Reasons Microwave Exhaust Fan Not Working — Microwave Oven Troubleshooting

Power-Supply-Board

LG 6871W1S133D Microwave Power Supply Board | Repair Clinic

LG Microwave Power Supply Board 6871W1S133D

This part 6871W1S133D is compatible with:

Related Articles & Videos

Power Supply Board Customer Reviews

Common Problems Fixed by the Power Supply Board

Microwave producing a burning smell

Microwave light bulb not working

About the Power Supply Board

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