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Microwave Not Working

The 4 most common part(s) or condition(s) which cause the symptom Microwave not working are listed below starting with the most likely. Check or test each item and watch any available videos.


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To see parts for your microwave, you need to enter your model number on the right. The system will then display parts that are associated with your microwave.

Line Fuse

Every microwave oven has a line fuse. This fuse is designed to blow if too much current is drawn through the microwave circuitry. The fuse can be replaced, but the underlying issue should still be investigated and resolved. Otherwise the new fuse will blow also.

Enter your model number for the best repair help results:


What is a model number, and where do I find it?

To see parts for your microwave, you need to enter your model number on the right. The system will then display parts that are associated with your microwave.

Main Control Board

If the microwave is not working the main control board may be defective. This is not common. When a microwave stops working the problem is usually the line fuse or within the high voltage circuit; either the high voltage capacitor, diode, transformer or magnetron.

Enter your model number for the best repair help results:


What is a model number, and where do I find it?

To see parts for your microwave, you need to enter your model number on the right. The system will then display parts that are associated with your microwave.

Thermal Fuse

If the microwave is not working the thermal fuse may have blown. It can be tested for continuity. Watch our fuse testing video for more information.

Enter your model number for the best repair help results:


What is a model number, and where do I find it?

To see parts for your microwave, you need to enter your model number on the right. The system will then display parts that are associated with your microwave.

Thermoprotector

If the microwave is not working the thermoprotector may have tripped. This is a safety device to prevent the microwave from overheating. It can be tested for continuity to see if it's blown.

Enter your model number for the best repair help results:


What is a model number, and where do I find it?

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