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HomeRepair HelpMagic Chef Microwave RepairMagic Chef Microwave shuts off after a few seconds Repair

Magic Chef Microwave shuts off after a few seconds

When your Magic Chef microwave shuts off after a few seconds, stops after 3 seconds, or keeps shutting off during a cycle, the most likely cause is a failing door switch. Inspect the primary, secondary, and monitor switches for overheating, arcing, or burn marks, then test each one for continuity with a multimeter. An intermittently failing micro switch can cause the same microwave turns off after a few seconds symptom, so test or replace any switch with inconsistent continuity. If the switches check out, the main control board may be faulty, although it is often misdiagnosed. Next, test the touchpad and control panel. If some buttons respond while others do not, replace the touchpad and control panel. A separate touchpad failure is less common but possible when the display works and only certain buttons respond. The control board is the final likely cause after other components test properly. Enter your model number to find the exact replacement part for your Magic Chef microwave. Any repair that requires opening the outer cabinet must be handled carefully because the high-voltage capacitor can store a lethal charge even when unplugged. Properly discharge the capacitor before interior work, or contact a qualified technician if you are not familiar with the procedure.

01 - Magic Chef 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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02 - Magic Chef 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 - Magic Chef 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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04 - Magic Chef 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 - Magic Chef 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 - Magic Chef 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 Magic Chef microwave shut off after a few seconds?
Can a Magic Chef microwave touchpad cause it to stop running after a few seconds?
Should I replace the main control board if my microwave keeps shutting off?
Is it safe to test a Magic Chef microwave that shuts off after a few seconds?
How do I find the correct Magic Chef microwave door switch or control part?

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