The touch panel no longer responds to any commands. You can check that easily at the circuit box for the house. If the microwave door switch breaks, the microwave doesn’t heat despite being switched on. When a microwave is working properly, it will only begin heating after these door switches are triggered in a certain sequence. This is why we have come up with the main causes and solutions for anyone facing problem of microwave buttons not working. Only a licensed technician should replace the main control board.) Among others, one of the most common problems is that microwave turns on but does not heat. Now I know humanity has been able to feed itself for most of its existence without this water molecule-stimulating tech. Precautions. Common microwave problems and faults and how to fix them The microwave oven has to be one of the most popular household appliances ever devised. I reset it, then it went off and that was that. If you don’t know a capacitor from a caster, leave the matter to a professional. I get its power back on by replacing the "flame sensor" which GE named. (My mom did just fine without it while I was growing up and actually refused to ever try one. If the keypad is now responding, test the microwave again, and proceed to the next step. My Kenmore microwave oven seems to be overheating after a few minutes of cooking and it is shutting down. Get shopping advice from experts, friends and the community! It loses power since the fuse is blown. With the limited air flow and exhaust rolling back into itself it gets really hot. I fixed nearly 200 microwave ovens ( customers returns from shops) and only about 4 magnetrons need replacement, usualy in branded models. The oven makes unusual sounds while … After it cools down, it seems to work fine again. My microwave stopped working after two years - can I get a refund? Your microwave oven not working? If the cooktop or oven gets hot enough the vent fan comes on. 1. Microwave stopped working while cooking. If you have some experience working with electrical equipment, you can check it and replace it. What seems to be the problem? The 4 parts mentioned above are used on all turntable microwave ovens. Here’s a shortlist of some common microwave problems and possible solutions. Now, make or get a permanent wire to short that capacitor while working on it. It basically the thermo cut-off sensor. A few minutes later I came back into the kitchen because I didn't hear or smell the popcorn popping. Check the child safety device hasn’t been activated by mistake. Kitchen Appliances Refrigerators Ranges Cooktops Wall Ovens Microwaves Dishwashers Hoods Freezers Beverage & Wine Centers Ice Makers Water Filters Compactors Disposers Smart Kitchen Appliances Explore Smart Ranges Explore Low Profile Microwave Hood … It's a Kenmore Elite Model # 721.66462500 I tried to make popcorn last night. The vent fan on your over-the-range microwave is useful for keeping smoke and steam clear from the microwave. And we haven’t even had it for two years! When this part doesn’t work, the fan and stirrer motors may still function, which makes your microwave look like it is working. One minute the timer was going and suddenly the display went off. 2. It will even turn on automatically if the microwave is getting too hot. This was much easier than I expected. Why, because is expensive and not worthit to fix. If your microwave oven suddenly stops working, the problem may be the fuse. The magnetron is a critical feature of the microwave heating function. My Samsung built-in microwave oven stopped working the other day. I have a GE JE1860SB microwave. If your microwave stopped working–or is not working as it should–you may be pleased to learn that many problems you encounter can be fixed by you. Everything was off, no time on the front console, no light inside. Proceed to Next Step. In microwave cooking, the radio waves penetrate the food and excite water and fat molecules pretty much evenly throughout the food. mrstan, I need your advice. The thermal cut-outs, also known as thermal fuses, help keep the oven from overheating. The repair methods we mention will work on all microwave ovens including, Whirlpool, Emerson, Kenmore, GE, Frigidaire, Maytag, Roper, and more. In most cases of microwave buttons not working, the common cause comes out to be defective control panel. after about an hour when it cooled down I flipped the switch and it was ready to go again. With its operating simplicity and speed of performance, it is an essential part of the modern kitchen. If you have determined that all of the other components are working properly,replace the main control board. • if the temperature gets too hot around the microwave oven, the fan in the vent hood will automatically turn on at the HIGH setting to cool the oven. Microwave Repair Over Oven – Turn table motor not working. Microwaves work by creating radio frequency energy using oscillating magnets. I was looking online for a replace … read more Microwave not working? Microwave stopped working, unit would run but food would not get hot. Solution: High-voltage capacitor shorted. Plug the microwave back in an attempt to use the microwave again. The roller guide is used to support the tray and to engage the rotating coupler. Remove the tray and then inspect the roller guide. If the diode fails to show continuity, or shows continuity in both the directions, you’d need to get it replaced. If it is not, check the circuit breaker or household fuse to see if it is working. Owing to our dependence on such devices, it becomes necessary to learn the basic skills required to tackle common microwave problems. Defective control panel. Put the bag in the microwave and pushed the popcorn button. If the microwave is used after speedcook and the oven senses that it is too hot, the vent fan comes on to cool the oven. (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 there is power to the outlet, and there is still no power to the microwave, try unplugging the microwave for 30 seconds. The multimeter should get a reading that highlights continuity in one direction but not in the other. The tools needed are basic ones you may already own, such as flathead and Phillips head screwdrivers. Check the components: Transformer I checked the transformer with an ohm meter, on all the leads, and also checked it to ground. Even many of the microwave parts are easily available online and are inexpensive. This high voltage powers the magnetron to heat the food. Its located behind the fan underneath the high-voltage transformer. If one of these switches isn’t working, the microwave will not heat. … When it first stopped working, the power was totally gone. Microwave is not responding: Reset by taking the plug out of the mains and leaving for 2 minutes before reconnecting. Hi, My GE Profile Spacemaker 2.0 microwave suddenly stopped working. The main function of a microwave is to heat things up, if the microwave is failing to do so, examine the high voltage diode, the door switch, and the magnetron. My Repair & Advice. First and foremost discharge the capacitor, google has the instructions. Check the hub to see if it engages the coupler securely and also the outer rollers for signs of cracks or damage. Garry H. • Monmouth Beach, NJ • November 19, 2019. How to Know When a Microwave Is Failing. personally I won't work on one! The door switch signals other microwave components to supply power when closed, and to stop heating when open. And, high power EM waves are high voltage. If the display is not working, or only some of the keys are unresponsive, the microwave will require a repair service. One of the common problems that may arise is problems with microwave buttons or touchpad. But if the fan strength isn't strong enough to hold up a napkin, you may feel like it's not working… (Caution: The microwave oven can store thousands of volts of electricity in its high voltage capacitor, even after the microwave oven has been unplugged. You can check it using a multimeter in ohmmeter mode. Remove the vent fan hood None of these fixes should be attempted by a novice. Like all radio waves, microwave EM-waves involve voltages in empty space. Most all microwave ovens turntables or carousel works exactly the same. Cause 1 Diode The diode converts the A/C power output of the transformer to D/C, doubling the voltage to nearly 5,000 volts. Due to the potential for electric shock, it is extremely dangerous to replace the electronic components in a microwave. Check to see if the wall outlet is working properly. BrokenDoor Switch. Control boards are often misdiagnosed—check all of the more commonly defective parts. Don’t attempt the job if you aren’t comfortable with it. The circuit breaker did not trip and an outlet on the same circuit still provides power, so I am pretty sure the problem is with the microwave itself. Model# 72167601790 serial# 711km08874 Fan comes on automatically when using the microwave. Your rights. How to inspect a microwave roller guide: This inspection is very simple; you will not need any tools to complete it. This week our resident lawyer Dean Dunham takes a look at the retailers that are trying to dodge consumer laws. If you experience Recommended Solutions; Some microwave ovens with a round glass tray use a motor driven coupler to turn the roller guide. High voltage transformer is rare to get faulty ( about 2 out 200 ). Before you finally jump to a conclusion that you need a new microwave, keep on reading and learn about some of the possible issues. Reconnect power. To access the thermal cut-outs, first unplug your microwave and then remove the cabinet. I am sure tht many answers blame magnetron is faulty. It was working, then it went off...came back up...went off again. A full microwave-oven is like a food-heating radio transmitter, while an empty oven instead produces runaway resonance. It may stay on up to an hour to cool the oven. Hot, dry air on the outside of the food evaporates moisture, so the outside can be crispy and brown (for example, bread forms a crust) while the inside is moist. Open up your microwave's outer casing and locate the diode: it will be connected to the capacitor at one end and to your microwave's chassis ground at the other. … The magnetron has burnt out. My GE Microwave JEB 1860 stopped working yesterday. Maytag MMV4206FZ microwave troubleshooting. Replaced it and microwave works fine. Remove the roller guide from the microwave and inspect the wheels on the guide to ensure they turn freely with no resistance. Used the microwave for 10-15 min strait and it just stopped. The door switch can also be called an interlock switch. When the cook cycle starts, microwave makes a groaning noise and stops. But now, even all components tested okay, my microwave just refuse to … If the diode burns out, the... - GE Microwave Oven model LVM1750SM155 Do NOT "check" the live voltage, unless you have a high voltage probe made for tube TVs, rated over 20,000 volts. We have had a similar event with the microwave in our 99 260. If you hear a dull sound, and this is followed by the microwave stopping working, this may be a fault with the diode. Problem with the Power Diode. Replaced a 20AMP fuse. The diagnosis was also easy, really just 3 parts, the Magnetron, the Capacitor, and the Diode. To access the roller guide, open the door to your microwave and take out the glass tray. When the thermal cut-outs fail, your microwave won’t turn on as a safety precaution to keep it from getting too hot. Why is my microwave overheating and shutting down?