![]() ![]() If you don’t see any obvious signs of failure, use a multimeter to test each switch for continuity. Check each of the door switches for signs of overheating, arcing, or burning. A door switch might be failing intermittently. Kenmore Microwave shuts off after a few secondsĭoor Switch. Replace the light bulb before replacing any of the parts associated with the light bulb The light bulb itself might be burned out. Only a licensed technician should replace the line fuse.) Due to the potential for electric shock, it is extremely dangerous to replace the electronic components in a microwave. (Caution: The microwave oven can store thousands of volts of electricity in its high voltage capacitor, even after the microwave oven has been unplugged. If you don’t resolve the underlying issue, the new fuse will blow too. In addition, you should investigate and resolve the problem that caused the fuse to blow. If the fuse does not have continuity, replace it. To determine if the line fuse is at fault, use a multimeter to test it for continuity. If the line fuse blows, the microwave won’t start. If too much current passes through the microwave circuitry, the line fuse will blow. Only a licensed technician should replace the diode.) Due to the high running voltage and the potential for electric shock, it is extremely dangerous to replace the electronic components in a microwave. (Warning: The microwave oven can store a lethal amount of electricity in its high voltage capacitor, even after the microwave oven has been unplugged. When the leads are reversed, the diode should only have continuity in one direction. If inspecting the diode proves inconclusive, test it with a multimeter that uses a 9-volt battery or put a 9-volt battery in series with the diode. Inspect the diode and if the diode is burned out, replace it. When the diode fails, it is often visibly burned out. If the diode burns out, the magnetron won’t receive enough voltage to operate, preventing the microwave from heating. This high voltage powers the magnetron to heat the food. The diode converts the A/C power output of the transformer to D/C, doubling the voltage to nearly 5,000 volts. If you’re in need of Kenmore appliance repair from experienced professionals, your local Appliance Helper can help.ĭiode. Even a trustworthy appliance requires occasional maintenance or repair, however. If you're looking for help fixing your Kenmore Microwave, look no further! Our comprehensive Kenmore Microwave repair guide will explain common issues, provide tips, and maybe show you how to repair your appliance.įor the home, kitchen and beyond, Kenmore manufactures appliances that homeowners have come to trust. ![]()
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