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Gibson Microwave shuts off after a few seconds

If your Gibson microwave shuts off after a few seconds, the most likely cause is a failing door switch. Inspect each door switch for overheating, arcing, or burning, then test it for continuity with a multimeter. Replace any switch that is damaged or tests intermittently. A faulty micro switch can cause the same problem, so check and test those next. If the switches work properly, the main control board may be malfunctioning, although control boards are often misdiagnosed. A defective touchpad and control panel or touchpad is less common, but possible if some buttons respond while others do not and the display is working. These checks can help explain why your microwave stops after 3 seconds, turns off after a few seconds, or keeps shutting off during a cooking cycle. Enter your model number to find the exact Gibson microwave door switch, micro switch, touchpad, control panel, or control board for your appliance. Any repair that requires opening the outer cabinet requires caution because the high-voltage capacitor can store a lethal charge even after the microwave is unplugged. It must be properly discharged before interior work, and unfamiliar repairs should be handled by a qualified technician.

01 - Gibson Microwave Door Switch

A door switch might be failing intermittently. Check each of the door switches for signs of overheating, arcing, or burning. If you don’t see any obvious signs of failure, use a multimeter to test each switch for continuity. If any of the switches is visibly damaged or only has intermittent continuity, replace it.
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Top Solution

02 - Gibson Microwave Micro Switch

A micro switch might be failing intermittently. Check each of the micro switches for signs of overheating, arcing, or burning. If you don’t see any obvious signs of failure, use a multimeter to test each switch for continuity. If any of the switches is visibly damaged or only has intermittent continuity, replace it.
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Top Solution

03 - Gibson Microwave Main Control Board

Control boards are often misdiagnosed—before replacing the control board, first check more commonly defective parts, particularly the door switches. If all of the other components are working properly, replace the control board.
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Top Solution

04 - Gibson Microwave Touchpad and Control Panel

To determine if the touchpad and control panel are defective, try pressing each of the buttons on the control panel. If some of the buttons respond correctly while others don’t, replace the touchpad and control panel.
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Highly Likely

05 - Gibson Microwave Touchpad

If the microwave runs for a few seconds and stops the touchpad might be at fault. This is not common. Generally speaking, if the microwave display is working and some of the buttons respond correctly but some don’t, the problem is with the touchpad.
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Highly Likely

06 - Gibson Microwave Control Board

Control boards are often misdiagnosed—before replacing the control board, first check more commonly defective parts, particularly the door switches. If all of the other components are working properly, replace the control board.
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Common

Frequently Asked Questions

Why does my Gibson microwave shut off after a few seconds?
How do I test the door switches when my microwave stops after 3 seconds?
Could the touchpad or control panel cause a microwave to shut off after a few seconds?
When should I replace the Gibson microwave control board?
How do I find the correct Gibson microwave replacement part?

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