My microwave runs like it is normal but doesn't heat anything. When I tested the thermal switch I didn't receive a reading. Before you replace a fuse, it is a good idea to test the part to make sure it is actually the cause of your problem. Using a small screwdriver the fuse … It helps prevent the microwave from overheating. I tested the continuity of the thermal fuse and got a reading. Use a screwdriver to remove the panel so that you can have access to the thermal fuse behind. It does wear out over time because you activate it every time you open or close the microwave. 5.0 out of 5 stars 2. Set your multimeter to Rx1 and touch the probes to the fuse’s terminals. An important safety feature, the thermal overload switch cuts off the flow of electricity to the heating element when your appliance starts to overheat. Generally speaking, the thermal fuse can be found in two locations: behind the rear panel or behind the bottom toe panel. Using a multimeter, you can check to see if the fuse lacks continuity; If there’s no continuity, it means the fuse needs to be replaced. If this happens to your microwave’s thermal fuse, it will cause you microwave to shut down when it shouldn’t. $44.49 $ 44. If the thermal fuse is located behind the rear panel, remove the screws with the screwdriver. To determine if the thermal fuse has blown, use a multimeter to test it for continuity. Thanks. Otherwise, you'll need to test the switch. These cut-outs or thermal fuses can be found inside the cabinet, often near the oven cavity or magnetron. Remove the microwave’s cabinet, locate the fuse, and remove it in order to test it for continuity. FREE Shipping. The thermal fuse cannot be reset—if the fuse is blown, it must be replaced. The ceramic fuse will be found near the power cord. Not even a cup of water. Conversely, a thermal fuse will prevent electrical flow if the fuse is heated to a specific temperature. You will need to unplug your microwave and remove the cabinet to locate the thermal fuse or cut-outs. Step 2 - Locate and Test the Microwave Ceramic Fuse. 49. If the microwave fuse blew because you opened the door while it was running, that's a "smoking gun." 5304440780 Wall Oven Microwave Thermal Fuse, 20-amp Genuine Original Equipment Manufacturer (OEM) Part. Then, you need to repower it: this means putting your microwave back together again so you can plug it in safely. Is there anything else I should check before replacing the thermal switch? Brett for Model Number JNM7196DF1BB A thermal fuse stops electric current flows to your microwave as a safety setting. A main fuse or line fuse is a fuse that will cut the flow of electricity if too much current passes through it. Usually ships within 6 to 10 days. Use a resettable fuse before testing so you don’t run through new fuses while testing primary malfunctions, but you can test with new fuses if that is more convenient. A faulty interlock switch is often the culprit if you're blowing fuses regularly. Step 3 - Uncover the Thermal Fuse. Usually, the microwave fuse holder is located in the vicinity of where the power cord is attached internally. Because replacing the heating element in your appliance is the more difficult repair, it's always a good idea to test your thermal overload switch first. The fuse holder clips are comprised of mild spring steel and should not be bent. The thermal fuse cuts off power to the microwave if the microwave overheats. Testing a Fuse. Beaquicy Microwave Fuse Ceramic Fuse Cartridge Fuse 20 Amp 250V Slow-Blow Compatible with WB27X10388 Microwave 10 PCS. If the fuse does not have continuity, replace it. How to test a microwave ceramic fuse with a multimeter: Unplug your microwave before starting this test.
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