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Ikea Microwave light bulb not working

When an Ikea microwave light is not working, the light bulb itself is the most likely cause. A burned-out microwave light bulb or halogen lamp should be replaced first, and you can test a halogen lamp for continuity with a multimeter or try it in an identical socket. If the replacement lamp still does not work, inspect the light socket and wiring for damage or loose connections. The main control board may be failing if it does not send the correct voltage to the light socket, although this is less common. A defective door switch, including a primary or secondary switch, can also prevent the light from turning on when the door opens. Test each switch for continuity, and replace any switch that fails. A faulty control board or micro switch can cause the same symptom but is less likely. Enter your Ikea microwave model number to find the exact light bulb, halogen lamp, socket, door switch, micro switch, or control board for your appliance. If the repair requires opening the outer cabinet, unplug the microwave first and use caution: the high-voltage capacitor can store a lethal charge even after unplugging and must be properly discharged. Hire a qualified technician if you are not familiar with capacitor discharge procedures.

01 - Ikea 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 - Ikea 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 - Ikea 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 - Ikea 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 - Ikea 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 - Ikea 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 Ikea microwave light not working?
How do I test an Ikea microwave bulb or halogen lamp?
Can a door switch cause my microwave light bulb not to work?
Could the control board be causing my Ikea microwave light to stay off?
How do I find the correct Ikea microwave light bulb replacement?

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