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Goldstar Microwave light bulb not working

If your Goldstar microwave light is not working, the light bulb itself is the most likely cause. A burned-out microwave light bulb can usually be replaced without replacing other components, so start with the bulb before checking the socket or wiring. If your model uses a halogen lamp, test it with a multimeter for electrical continuity or install it in an identical socket. When the bulb and socket work, a faulty main control board may not be sending the correct voltage to the light socket. A defective door switch, primary or secondary interlock switch, or micro switch can also prevent the control board from recognizing whether the door is open or closed, leaving the microwave light off or stopping the light button from functioning. A control board is a less common cause, but it should be tested after the bulb, socket, and wiring. Enter your Goldstar microwave model number to find the exact replacement light bulb, halogen lamp, door switch, or control board for your appliance. If repair requires opening the outer cabinet, unplug the microwave first, but remember that the high-voltage capacitor can store a lethal charge even after unplugging. It must be properly discharged before interior work, which may require a qualified technician if you are not familiar with capacitor discharge procedures.

01 - Goldstar 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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Top Solution

02 - Goldstar 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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Top Solution

03 - Goldstar 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 - Goldstar 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 - Goldstar 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 - Goldstar 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 Goldstar microwave light bulb not working?
How do I test a Goldstar microwave halogen lamp or light bulb?
Can a Goldstar microwave door switch cause the light bulb not to work?
Should I replace the Goldstar microwave control board if the light is still out?
How do I find the correct Goldstar microwave light bulb replacement?

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