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Amana Microwave light bulb not working

If your Amana microwave light is not working, the light bulb itself is the most likely cause. A burned-out microwave light bulb or cavity light should be replaced before testing other parts. Some Amana models use a halogen lamp, which you can test with a multimeter for electrical continuity or install in an identical socket for comparison. If the bulb or lamp works, check the light socket and wiring, then test the main control board to verify that it sends the correct voltage to the socket. A defective main control board is less common, but it can prevent the microwave light from turning on. A faulty door switch or micro switch may also fail to signal the control board when the door opens or closes, preventing the light or its control button from functioning. Test each switch for continuity and replace any failed switch. Enter your model number to find the exact Amana microwave light bulb, halogen lamp, socket, door switch, or control board for your appliance. If repair requires opening the outer cabinet, unplug the microwave first and use proper safety procedures. The high-voltage capacitor can store a lethal charge even when unplugged and must be properly discharged. Hire a qualified technician if you are unfamiliar with capacitor discharge.

01 - Amana Microwave Light Bulb

The light bulb itself might be burned out. Replace the light bulb before replacing any of the parts associated with the light bulb
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02 - Amana Microwave Halogen Lamp

To determine if a halogen lamp has failed, you can use a multimeter to test it for electrical continuity, or install the lamp into an identical socket to test it.
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03 - Amana Microwave Main Control Board

Before replacing the control, check the light bulbs, sockets, and wiring. If these parts seem to be working properly, test the control board with a multimeter to determine if it sending the correct voltage to the light bulb socket. If the control board is not sending enough voltage to the light bulb socket, replace the control board.
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Highly Likely

04 - Amana Microwave Door Switch

A defective door switch may not signal the control board that the door is open or closed which may prevent the microwave light from turning on or prevent the button that controls the light from functioning. To determine if any of the door switches are defective, use a multimeter to test each of the switches for continuity. If any of the door switches do not have continuity, the switch or switches should be replaced.
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Highly Likely

05 - Amana Microwave Control Board

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

06 - Amana Microwave Micro Switch

A defective micro switch may not signal the control board that the door is open or closed which may prevent the microwave light from turning on or prevent the button that controls the light from functioning. To determine if any of the micro switches are defective, use a multimeter to test each of the switches for continuity. If any of the micro switches do not have continuity, the switch or switches should be replaced.
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Common

Frequently Asked Questions

Why is my Amana microwave light not working even though the microwave still heats?
How do I test an Amana microwave bulb or halogen lamp for a microwave light replacement?
Can a door switch cause an Amana microwave light bulb not to work?
When is the Amana microwave control board the problem if the light is not working?
How do I find the correct Amana microwave light bulb or part number?

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