Now locate the high voltage capacitor. A faulty turntable motor typically makes a clicking or grinding sound. Nothing burst into flames or anything, Is it time to replace it? Hold for approximately 10 seconds or until the light flashes. Depending on the model, a working cooling fan motor should read 280 ohms. It replaced another one I returned after one day. Before doing so, its worth checking whether you have a warranty that covers the cost of faulty parts and a technicians services. For some models, you might have to remove some components to access the cooling fans. It converts alternating current to direct current to produce the high voltage needed to power the magnetron. AppliancePartsPros.com Appliance Repair Help Microwave Repair Loud Popping Noise, Whirlpool. Food items with a higher fat content will pop and sizzle as they cook. The stirrer makes sure that food in the microwave is cooked evenly. The fan will start running to help the hot parts cool down when this happens. Popping and sizzling noise from the Microwave is a regular occurrence. Replace turntable support. Microwave Making Popping Noise When Off. You can continue to safely use the microwave if the hole is equal to or smaller than the hole size that you see on the door screen and additional arcing is not occurring during the cooking cycle. If your diode is reading outside this range, youll need to replace it. . I tightened both screws where the latches engage, and it no longer hums now. Depending on the model, a healthy diode will read between 50,000 and 200,000 ohms. Older and heavy-use microwaves can sometimes develop diode problems. A relay could be clicking and that could be a concern if it turns on the unit unintendedly. Still, when something is going on you like to know what it is. If that doesn't work, the only way to stop your microwave from making noise is to find out which part is faulty and repair or replace it. After testing transformers and magnetron and other interior components I traced the problem to the lower door switch. This was the issue with a humming Samsung microwave I just repaired. The magnetron is the component inside your microwave that produces the electromagnetic waves that cook your meal. Ill explain in more detail below the reasons a microwave might make noise when its off. Popping sounds can be due to refrigerant circulation, thermal expansion or it could be as a result of different components in the fridge turning on and off. I had the same problem, I tested all door switches. Remove the top cover from your microwave. First, check to see if anything is blocking the ventilation holes on the back or sides of the microwave. My whirlpool microwave makes a clicking noise and then shuts off after a few seconds. You need to isolate the clicking noise ASAP. Use a multimeter to test the magnetron for continuity. From reading another thread concerning the popping sound it may be the magnetron. There are several possible causes of a clicking oven, including: 1. For the latter: If you hear a crackling sound during operation, you should observe the oven cavity for arcing: sparks or flashes often occurring near rack supports. 2. Microwave is now making a popping sound when turned on. Designed with, Why Is My Microwave Making Popping Noise? Yep, it was a shorted high voltage diode (see chosen solution). It has faded into the background of household activity and noises as normal operational characteristics, same as the reversing tumble every 4.5 minutes/40 seconds on my Fisher & Paykel dryer. Follow these steps to diagnose and fix a faulty stirrer motor: Monday Friday: 7:30am 5:30pm Step 2: When you see "oP-2" on the microwave, press Start. Depending on the model, a healthy diode will read between 50,000 and 200,000 ohms. If no issues are found, remove the magnetron in order to test it. To check the diode, you need to: Switch the power to your microwave off, and unplug it from the power socket. So, how can you stop your microwave from making noises when its off? Replace turntable. When the door is shut, two of them should be closed and one should be open. So, what does it mean if your microwave makes noises when its off? @johnlornea15848. bonniejmuir, The magnetron uses high voltage, high current DC power to generate the microwave frequency that cooks the food. Humming or buzzing. The microwaves magnetron is responsible for producing the high-frequency electromagnetic waves that cook the food. the last one I haven't even had a month. Microwaves are low-maintenance appliances. Due to the risk of electrocution, it is recommended that a trained microwave professional be used to repair the more complex issues. If necessary, remove any components blocking access to the fan. Save my name, email, and website in this browser for the next time I comment. Read on to find out more about the causes and ways to fix these unusual sounds on your own. You can usually remove and replace this motor with ease by first removing the microwaves bottom panel then detaching electronic wiring and unscrewing the mounting screws or bolts. Noises can also be heard when cooking foods with tight membranes such . It can be the sound of the Magnetron turning on and off. If the fan is not obstructed but is not spinning freely, it indicates that the fan motor will need to be replaced. When you open up a microwave, you can usually tell immediately if the diode is defective because it will look cracked or blistered. s.channel = "Service_Support"; However, if the magnetron is damaged or nearly burned out, it may begin emitting high-pitched sounds or growling noises. As noisy as the poster says, it would be easy to . It's easy to get used to the convenience of just popping leftovers in the microwave for a quick re-heat. Heres how you can use a multimeter to test a magnetron for continuity: To test a diode for continuity, you will need a meter powered by a 9-volt battery or use a 9-volt battery in conjunction with the meter. Before inspecting the magnetron, discharge the high voltage capacitor. andrea Zalazar I'm sure this has freaked many people out; the mysterious and intimidating popping sound of the microwave. You can usually tell if the cooling fan is causing the noise because it sounds louder at the rear of the microwave. s.eVar14 = document.title; Verify microwave oven operation. Access the stirrer motor from inside the microwave cavity, above the turntable plate. Metal Studs vs. Wood Studs for Soundproofing Which is Better? Next, remove the diode and prepare the multimeter for continuity checks. So, if the microwave makes sounds like a magnetron but is way over normal, then its likely that the diode or magnetron is faulty. As the stirrer turns, it deflects the microwave energy randomly throughout the microwave. However, since it is situated at the top of the appliance, gravity is working against it. Food with high fat content will pop and sizzle as it heats up. While defective blower wheels and faulty diodes will not necessarily pose any imminent danger when operating a microwave; they are potential fire hazards so avoid using them until it is fixed. Occasionally, cleaning the cooling fan can solve the problem if the noise is due to dirt or clogs obstructing . A faulty magnetron can also cause an annoying high-pitched sound, which indicates that the magnetron tube is failing due to age and heavy usage. However, before replacing any parts, see if either turning the microwave off and on at the power source or cleaning the microwave solves the noise issue. @andreazalazar. An ohmmeter measures an appliances electrical resistance. Aug 4, 2022 by Step 2: Take out the glass tray and support from within the microwave. @gyarados, did the popping occur on the first use of the day or each time the unit was used? Michael Crawford. An arcing waveguide can be caused by a dirty waveguide or interior walls exposed to metal from chipped wall coverings. It's common for magnetrons to wear out with age, especially if you use your microwave frequently. I had the same problem with my Whirlpool over stove microwave. Its similar to frying any oil or fat-based food on a conventional cooktop with oil popping and shooting everywhere when overheating. Regional office:150 King Street West Suite 200, Toronto, ON M5H 1J9. You'll need to open the microwave's cabinet and discharge the high-voltage capacitor. Microwaves are hardworking kitchen appliances, and its understandable that they sometimes have problems. Usually, whatever you are cooking in the microwave is boiling, and steam is being spat out. Turntable Motor Issue: A turntable motor rotates the glass tray of a microwave in order to heat food and beverages evenly. For a better experience, please enable JavaScript in your browser before proceeding. Verify that the mounting bolts are tight and that the high voltage diode is working. But when you check it, the food is not ready and it seems like there is nothing wrong with the microwave. If your microwave makes a popping noise because you are cooking food high in fat, then this should not cause you to panic. You could see sparks or flashes of light neighbors near shelf supports and around the door frame. When door is closed it sounds like a fan is running near top right of microwave. Apparently jotting things down is what separates us humans from the rest of the animals, allegedly. With an insulated screwdriver, touch one of the capacitors terminals. Your microwaves fan can continue running even after youve switched it off, and the noise you hear could be the fan rotating. The stirrer motor is located above the turntable plate, which you can access from the microwave cavity. From https://www.justanswer.com/ythiJustAnswer Customer: my whirlpool microwave makes a clicking noise and then shuts off after a few secondsPearl Wilson: As. It heats fine. Also, you might want to test the motor using a multimeter for continuity. A normal electrical resistance reading for diodes is between 50,000 and 200,000 Ohms. Although, if you are handy, you can use a multimeter to test the continuity of these components and replace the faulty parts yourself. So, when the device is running on a low setting, the magnetron is likely switching on and off for low-frequency generation. I believe it's cockroaches I don't think it is a coincidence that all three of my microwaves or sound like they're shooting at me. The convection fan stops between reversals. It only runs when the oven is turned off so as to quickly cool down the appliance. From reading another thread concerning the popping sound it may be the magnetron. So, when the diode is faulty, it tends to make a loud humming noise. Microwaves sometimes make noises when theyre off because of hot parts, magnetron issues, a faulty fan, diode problems, or power supply issues. If you hear snapping, humming, or buzzing sounds when your microwave is off, it could be the magnetron. Remove turntable. Popping sounds are usually caused by the food item being cooked in the microwave. Clicking Noise In Dashboard When Car is Off? Ive explained what issues can cause microwaves to make sounds when off. You might need to repeat this a few times until you hear a loud pop indicating a short circuit. A functional cooling fan motor should measure about 280 ohms. In the next section, well discuss practical solutions to microwaves making popping noises: Sometimes, switching off your microwave oven and cleaning it properly solves the popping noise. The capacitor stores electricity and runs the digital clock when the microwave is not in use. . There are three micro-switches on the latch board. I tightened the screws just inside the door because one was slightly loose. Home Appliance Technician. this time. But when the noise is becoming unbearing, and its coming from the rear of your appliance, replacing the motor might be a great idea. Make sure the appliance is not plugged into a power source, Remove the microwaves top casing to access the high-voltage circuit and the diode. There are different methods to do this, depending on your headphone brand and model. These are normal operating noises. Here's a YouTube video of a microwave doing this. First, I prayed, then I checked on the internet for possible answers, and find this response by Joe. If you notice any exposed wires, a frayed cord, or burned parts, your microwave might have an electrical problem. The relays are losing power after cycling on and off. There is a safety switch (thermostat) that is often located just behind the user interface. Check the food debris at the bottom of the oven which can interfere with its operation and cause noise. My Bosch combi-microwave is making crackling sounds and the display is flickering on and off sometimes during microwave action. Sometimes the cooling fan becomes dislodged or debris gets caught in it. Watch your inbox for our simple home maintenance tips. Remove and clean turntable support and rollers. Sometimes, turning your microwave off and giving it a good clean can stop it from making noise. 23,090 satisfied customers. Microwave capacitors store significant amounts of energy, even if they've been unplugged for a long time. JavaScript is disabled. Eric Smith. (i live in canada) i have no problem buying a new one and replacing it. For a further diagnosis, to be sure its the magnetron to be blamed here, you should set the microwave at a low setting to see if the noise stops or reduces as it switches on and off while cooking. The best way to avoid this issue is to always line the oven rack with aluminum foil or parchment paper to prevent damage or scratches to the cabinet surface. 1; 2; Next. Answer (1 of 3): It is probably all over the inside of the microwave, unless you had lid on. Top 6 Noise Recorders for Noisy Neighbors In 2023, Power Strip Making Buzzing Noise? If a microwave is making static noise, the reasons can include a damaged magnetron, loose wiring, or frayed wiring. Go. When I started cooking with my microwave (Whirlpool model), I heard a loud electric popping sound but it continued to run and cooked my food just fine. Microwave ovens are one of the most commonly used home appliances. Aug 30, 2021 by Another reason your microwave makes a popping noise is likely because the cooling fan is dislodged. The noise your microwave is making and where it is coming from will help you find out what the issue is. The diode is a part used in conjunction with the capacitor to power the magnetron, and if this component happens to fail, then it could be the root cause of your problem. If so, you might consider leaving your microwave unplugged when youre not using it to prevent it from making noises. All microwaves have transformers that convert the electricity from your power supply into higher voltage energy to heat your food. It could be a fault water valve, faulty compressor or other problems. The foods cook normally. (HV transformer, HV capacitor, or magnetron) . Use of the Blog is subject to the Website, How to Install an Over-the-Range Microwave, 4 Surefire Methods for Cleaning the Crud Out of Your Microwave, Everything you need to Know about Samsung Smart Microwaves: Features and Functionality. Remember that a fuse gets blown because too much amperage is pulled through the unit. I dont understand how this worked, but it did. Worked for me and took 2 seconds to do for my samsung microwave. Make sure the microwave is unplugged from the power source. However, what does it mean if your microwave makes noises when its off? Should I call the landlord? Step 1: Unplug the microwave from the outlet. It may not display this or other websites correctly. Many of us rely on our microwaves to prepare meals in a rush, so it can be disconcerting if it starts making weird noises. Holding the black lead against one end of the diode, touch the opposite end of the diode to the negative terminal on the 9-volt battery. Its responsible for rotating the glass tray to guarantee your food is evenly heated. In good condition, the magnetron will emit a low hum during operation. I don't think it's the magnetron, as the sound was a sharp pop when the microwave starts cooking, not a continuous hum or anything. The design of this microwave is such that greasy air is drawn through the innards when the venting fan is used, causing a buildup of oily crud on the electronic components inside. Food spills will also cause popping noises when they land on electrical components like the walls of your microwave! The need for a quiescent working and living environment cannot be overemphasized. Before accessing the turntable motor, remove the turntable plate and support roller from the microwave. My LG microwave did the same thing - very loud bang when starting, not all the time but after the last bang it stopped working altogether. If the magnetron is defective, remove it carefully and replace it. When your microwave is on, the diode makes a humming noise, but a faulty diode might make crackling sounds when the microwave is off and cooling down. Must . In addition, the cooling fan motor wears out with time and might need a replacement when you start noticing a louder fan noise. A microwaves diode is responsible for powering the magnetron and converts alternating current to direct current. Sometimes, turning your microwave off and giving it a good clean can stop it from making noise. It is caused by the thermal expansion the metal chassis of the TV goes through during the warm-up phase. Huffing and puffing: If your furnace huffs and puffs, it may have a faulty or corroded gas valve or burner. If the motor develops a fault, it must work harder, causing an annoying grinding noise. The noise your microwave is making and where it is coming from will help you find out what the issue is. Or, remove the stirrer motor and see if the microwave stops making noise. This sounds like my problem. Else, you might have to remove and replace the cooling fan motor. Your microwave making a noise when off is not something to worry about if its still heating food correctly and working normally. However, if the noise doesnt stop once the parts have had time to cool, you might have one of the following issues on your hands. But I rewired a car relay and problem solved. Unplug the microwave from the power source. Samsung SMH2117S Microwave started making a loud hum a few days ago, I unplugged it over night and left it, plugged it back in the next day and still a loud hum, the hum stops when you open the door. This is entirely normal and nothing to worry about. This is one of the few moving parts of the appliance. As soon as you close the door, without pressing any buttons or starting the microwave the hum comes back. En espaol. Replacements can be purchased for $15-20. With loose wires, you can easily put them back in place. Oh, my!! If your microwave is making Crackling Noise or other electrical sounds: Crackling sounds are usually caused by the food item being cooked in the microwave. Judy@AZJudy.com, Mine is exactly the same model as yours. Floors That Make a Popping Sound. Test the turntable motor for continuity with a multimeter. Here's how to check your microwave's fan: Unplug your microwave, and discharge the capacitor. Fix things more easily! Stay close to your microwave while its unplugged and wait to see if the noises go away. A problem with the cooling fan is another reason for microwave noise. Place one cup (250 mL) of water on the turntable in a microwave safe measuring cup; then restart microwave oven. I don't really feel like it is safe to leave plugged in or even use. If the multimeter doesnt detect current, the fan motor is broken and must be replaced. Your Account. Car Making Whirring Noise When Driving: The Ultimate Guide! Lastly, avoid using metals or non-microwave safe utensils in the microwave, as that leads to cracking sounds too. If your microwave is making a noise when the door is closed, it could be that there's metal in between the door and cabinet surface. Popping sounds are usually caused by the food item being cooked in the microwave. : (Easy Checklist). But i want to make sure that is the real problem. You can prevent your microwave from making noises by using a plate cover and cleaning it regularly to avoid a food build-up. Check to see if the noise stops after a while. Keep in mind, the diode should only have continuity in one direction, so if the multimeter display shows no continuity, try reversing the diode so the black lead is in contact with the opposite end of the diode when touch the other end of the diode to the 9-volt terminal. Check the Cooling Fan As Well. Occasionally, cleaning the cooling fan can solve the problem if the noise is due to dirt or clogs obstructing the fan blades. Remove your microwave's cabinet and locate the magnetron. Not the easiest appliance repair I have ever done.$48 beats $250 for a new one. Even when its off, your microwave still needs a small amount of electricity to power the clock and keep it in standby mode. If the diode is not defective, replace the magnetron. // Manipulate variables Phyllis McMahon. I thought it might be a one-off occurrence, but it happened again later. When I put some chicken mole in it a little while ago to heat up, it made a big *crack *sound, and then as it ran for two minutes, there was a series of smaller crackling sounds, sort of like crackling paper. The motor is one of the few moving parts of this appliance. @edwardangel. If a magnetron isnt working properly or fails altogether, the microwave may run but will not cook the food placed inside of it.if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[300,250],'housetipper_com-medrectangle-4','ezslot_11',115,'0','0'])};__ez_fad_position('div-gpt-ad-housetipper_com-medrectangle-4-0'); You can tell whether your magnetron is faulty if you hear it begin making loud or unusual buzzing sounds when on. This could be caused by a dirty waveguide or a damaged interior wall. Replace or fix faulty sockets. If your microwave is off but making noises, it could be due to any of these issues: You can resolve these issues by unplugging your microwave or replacing or repairing the faulty parts. Whirlpool gold gmh3204xvs-1 - Answered by a verified Appliance Technician . Second, make sure the turntable is level and not . It's possible for a micro switch to allow continuity but still be damaged and cause the unit to fail. My GE Profile range clicks when baking. There are several common components that produce unnecessary noise in a microwave: Trouble With Diodes: Your microwave magnetron might be emitting a noise because of the interference emitting from the diode attached to it. Here are the most common reasons your Maytag microwave shuts off after a few seconds- and the parts & instructions to fix the problem yourself. Would be great to know how to fix, Im here with the exact same problem. The screws in the door didn't fit any screwdriver bit that I had, so I just pushed on the door frame, and voila! Magnetron - The microwave magnetron uses high-voltage to create the microwave frequency that cooks the food placed in the oven cavity. If not, you might have to get rid of the debris obstructing it from spinning freely. It's kind of a cheap oven and about 12 years old. But the most common is: Press the power button on your headphones. The unit will still heat food, and everything else seems to be working as normal. As the fan rotates, you may start hearing squeaking noises that appear at the end of your oven's use. A burnt magnetron results in an irritating high-pitched sound signaling that the magnetron tube has failed, probably due to heavy usage and age. Popping and clicking noises coming from a mini-fridge can mean different things. You can buy them online or in DIY stores. Hold until the light flashes. Use a multimeter to check for electrical current. The microwave turntable turns and food still heats up but it sounds like popcorn is popping even when nothing is inside. If your microwave is currently in good condition, how can you prevent it from making noises in the future? As mentioned, food high in water content will have a chance to explode if not given proper attention. If using the metal cooking rack, make sure it is firmly in place and not upside down. If the motor has the proper voltage, but is noisy or won't turn, replace it. If that doesn't work, the only way to stop your microwave from making noise is to find out which part is faulty and repair or replace it. Get the latest HomeServe news, tips, and promotional messages, including special offers. The really ship fast. Once located, discharge the capacitor. Drag the insulated screwdriver across to the other terminal to create a short circuit and discharge the electricity. My name is David Briley, a soundproofing expert with a burning passion for curating and creating audio since adolescence. If youre unsure whether your diode is defective, you can check it using the following method: If you believe that your microwave may have a problem with the power supply, unplug it and look at the power cord and plug. Also, ensure that the microwave and the turntable is always clean, as food spills can also cause cracking noises. If its the stirrer motor to be blamed, replace it.
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