Fixing a Microwave Oven That Has Stopped Turning and Heating

Many households rely on their microwave ovens for cooking and reheating meals. When your microwave suddenly stops turning and heating, it can be quite disconcerting. Before you consider a replacement, there are several steps you can take to attempt a repair.

Initial Checks for Repair

First, ensure that the issue isn't something as simple as a faulty outlet. Check if the outlet the microwave is plugged into is live. If the outlet is functioning correctly, proceed to other troubleshooting steps. If you're not sure about performing these checks or handling electrical components, it's best to consult a qualified electrician. Microwaves can carry 600 volts, which is enough to cause injury, so safety should always be a priority.

Manual Diagnosis

If you suspect that the motor inside the microwave might be the culprit, you can start by removing the door and disabling the door jamb switch. This will allow you to rotate the microwave manually. However, exercise caution when doing this, as the internal components carry a significant voltage. It's important to ground the high-voltage capacitor to ensure safety.

Professional and DIY Options

After performing these checks, consider the following options:

If you have experience with electrical repairs and feel comfortable doing DIY work, you can try to replace the small synchronous motor under the microwave. This repair is not too difficult, and there are many YouTube tutorials available that can guide you through the process. Check for a torn belt or an object caught in the gears. A small motor with a pulley drives the turntable by means of a plastic belt. In some models, delrin cog wheels drive the platter spindle. If you find a problem, you may need to replace the belt or remove the object. Before attempting any repairs, unplug the microwave and discharge the smoothing capacitor to the chassis using a multimeter to ensure safety. The voltage inside can be as high as 2.5kV, so proceed with extreme caution.

It's important to note that even if you are capable of performing the repairs, it might not be cost-effective. Sometimes, the cost of getting parts and labor can exceed the value of the appliance. In such cases, it might be more practical to get a new microwave.

Gather Professional Help

Given the potential risks, it's often recommended to hire a qualified electrician. They have the necessary expertise and tools to safely diagnose and repair your microwave. If you decide to proceed with DIY repairs, make sure you follow each step carefully and consult relevant guides to avoid damage.

Conclusion

While microwaves can seemingly fail in a variety of ways, often the problem can be resolved with simple repairs. By checking the outlet, performing basic inspections, or replacing a faulty motor, you may be able to get your microwave working again. However, always prioritize your safety and consider professional help if you're unsure about handling electrical components.

Thank you for reading. Have a nice day!