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Dacor Microwave not working

When a Dacor microwave is not working, start with the line fuse, which can blow when excessive current passes through the microwave circuitry and prevent the oven from turning on. Test the fuse for continuity, but also correct the underlying electrical problem or a replacement fuse may blow again. Next, inspect the switch holder behind the control panel. If it is damaged or misaligned, the door switches may not engage when the door closes, leaving the microwave dead even though it has power. A defective main control board can also cause a microwave not working problem, but it is rarely the cause and should be considered only after other parts test good. Check the thermostat and thermal fuse for continuity if the microwave overheated, and verify that the electrical outlet has power by testing it with another appliance. Enter your model number to find the exact replacement line fuse, switch holder, thermostat, thermal fuse, or control board for your Dacor microwave. Any repair that requires opening the outer cabinet is hazardous because the high-voltage capacitor can store a lethal charge after unplugging. Proper capacitor discharge is required, so use a qualified technician if you are not familiar with the procedure.

01 - Dacor Microwave Line Fuse

If too much current passes through the microwave circuitry, the line fuse will blow. If the line fuse blows, the microwave won’t start. To determine if the line fuse is at fault, use a multimeter to test it for continuity. If the fuse does not have continuity, replace it. In addition, you should investigate and resolve the problem that caused the fuse to blow. If you don’t resolve the underlying issue, the new fuse will blow too. (Caution: The microwave oven can store thousands of volts of electricity in its high voltage capacitor, even after the microwave oven has been unplugged. Due to the potential for electric shock, i...t is extremely dangerous to replace the electronic components in a microwave. Only a licensed technician should replace the line fuse.)
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02 - Dacor Microwave Switch Holder

The microwave switch holder is the component that houses the door switches behind the control panel. If the switch holder is damaged or misaligned, one of more switches may not be actuated when the microwave door is closed, resulting in the microwave not working. You will need to uninstall the control panel and inspect the switch holder to confirm it is in good condition and secured properly. Replace the switch holder with a new one if necessary.
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03 - Dacor Microwave Main Control Board

The main control board might be defective. However, this is rarely the case. Control boards are often misdiagnosed—check all of the more commonly defective parts. If you have determined that all of the other components are working properly,replace the main control board. (Caution: The microwave oven can store thousands of volts of electricity in its high voltage capacitor, even after the microwave oven has been unplugged. Due to the potential for electric shock, it is extremely dangerous to replace the electronic components in a microwave. Only a licensed technician should replace the main control board.)
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04 - Dacor Microwave Thermostat

If the microwave overheats, the thermostat trips to cut off voltage to the microwave. If the thermostat is shorted open, it may not allow voltage to reach the high voltage components. To determine if the thermostat is at fault, use a multimeter to test it for electrical continuity. If the thermostat does not have continuity, and it cannot be reset, replace it.
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Highly Likely

05 - Incoming Power Problem

The electrical outlet may not be getting power. To determine if the outlet is getting power, try plugging something else into the outlet. If the outlet is not getting power, check the home circuit breakers or fuses.
Highly Likely

06 - Dacor Microwave Thermal Fuse

The thermal fuse cuts off power to the microwave if the microwave overheats. To determine if the thermal fuse has blown, use a multimeter to test it for continuity. If the fuse does not have continuity, replace it. The thermal fuse cannot be reset—if the fuse is blown, it must be replaced. (Caution: The microwave oven can store thousands of volts of electricity in its high voltage capacitor, even after the microwave oven has been unplugged. Due to the potential for electric shock, it is extremely dangerous to replace the electronic components in a microwave. Only a licensed technician should replace the thermal fuse.)
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Common

Frequently Asked Questions

Why is my Dacor microwave not turning on even though it has power?
How do I test or replace a Dacor microwave fuse?
Can a Dacor microwave door switch holder keep the microwave from working?
Could a Dacor microwave thermostat or thermal fuse be causing it to stop working?
How do I find the correct Dacor microwave replacement part?

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