microwave making popping noise when off

So the inside boils before the outside, so the pop it is merely steam escaping. If the diode tests negative for continuity in both directions or has continuity in both directions when the leads are reversed, the diode has failed and will need to be replaced. Magnetron Issues Are Common in Older Microwaves, Transformers in Microwaves Often Make Humming Noises, Power Supply Problems Contribute to Abnormal Sounds, Unplug the Appliance and Check the Power Supply, How to Prevent Your Microwave From Making Noises. I replaced all three switches (since the unit had to be opened up anyway) and the problem appears to have been solved. You must log in or register to reply here. Hardest part was finding the star screwdriver to fit the screws that are next to the latch receiving part of the unit. Any comments would be greatly appreciated, Dec 6, 2022 by There is a safety switch (thermostat) that is often located just behind the user interface. You can further diagnose a magnetron issue by running the microwave on a low setting and seeing if the microwave noise reduces or stops as the magnetron turns on and off while cooking at the low setting. Edward Angel. Nov 22, 2021 by Ill explain these solutions in more detail below: If you suspect that your magnetron is making noises when your microwave is turned off, youll need an ohmmeter to check its functioning. Systems, equipment, issues and circumstances vary. You may also notice a loud rattling sound if the fan is loose. The diode is a part of the high-voltage circuit, along with the magnetron and capacitor. This charge can be high enough to deliver a potentially fatal electric shock if you touch live components accidentally. It heats fine. Be sure you discharge the capacitor first, either by leaving the microwave unplugged for a few days or connecting the terminals with an insulated screwdriver (see YouTube). In most cases, a microwave making a popping noise is not a sign that it needs a replacement or a trip to your technician. You can prevent your microwave from making noises by using a plate cover and cleaning it regularly to avoid a food build-up. If your microwave is making arcing, sparking, popping, or other electrical sounds: Popping sounds are usually caused by the food item being cooked in the microwave. It can also be the sound of the door latch. Here are the most common reasons your Maytag microwave shuts off after a few seconds- and the parts & instructions to fix the problem yourself. The part category and part title filters allow you to easily refine that list to find the exact part you need. Microwave capacitors store significant amounts of energy, even if they've been unplugged for a long time. I've had it 13 days. Fan/Blower Wheels: If your microwave is making a grinding sound whenever you try to operate it, theres a chance the fan is not properly being coupled with its shaft in the motor. Owner's Manuals. Watch your inbox for our simple home maintenance tips. Heres how to check your microwaves fan: A microwaves diode usually lies next to the capacitor and is a dark-colored and tubular-shaped part. Hence, if your gadget is always making popping noises while cooking, then its probably because of the cooking oils or sprays inside. It is caused by the thermal expansion the metal chassis of the TV goes through during the warm-up phase. You are using an out of date browser. If a defective diode is to blame for your microwave making noise, the microwave won't generate heat. A grinding sound from inside the microwave indicates it is the stirrer motor, while a grinding or clicking noise from the base of the microwave indicates it is the turntable. When you need to whip up a quick snack or meal, it comes rushing to the rescue. Keep in mind that this depends on the model. The problem turned out to be a fried high voltage diode. Typically, you will be able to hear the cooling fan when the microwave is operating normally. Thermal expansion. @edwardangel. The ball joints allow the steering knuckles, which are attached to the wheel/tire assemblies, to pivot when you turn the steering wheel. The unit was only 4-5 years old. If the fan is not obstructed but is not spinning freely, it indicates that the fan motor will need to be replaced. Magnetron - The microwave magnetron uses high-voltage to create the microwave frequency that cooks the food placed in the oven cavity. Clicking Noise In Dashboard When Car is Off? It's safest to turn off the power supply and get it fixed before using it again, especially if you notice your microwave sparking or smoking. It happens when humidity is over 70%, whether from humid days air or too much boiling on stove underneath. Damper operating sound for convection . Use a multimeter to test the diode for resistance. entity names and logos are trademarks or registered trademarks of their respective holders. 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. Soundproofever.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising & linking to Amazon properties. Microwaves sometimes make noises when theyre off because of hot parts, magnetron issues, a faulty fan, diode problems, or power supply issues. A faulty stirrer motor typically makes a grinding sound as the motor struggles to keep up. Next, touch the probes to the terminals of the diode, and then do the same but with the probes now reversed. Follow all your manufacturer safety precautions. clicking is from a physical motion in your computer. Nick Nishino. Microwaves are hardworking kitchen appliances, and its understandable that they sometimes have problems. I dont have capacity to fix and trying to determine should I replace or have service rep come fix it and than maybe having to do the same thing 2 years down the road. 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. We Have the Solution, Quiet Please! Oh, my!! I will try to figure out how to disassemble the front control panel and locate that thermostat. I had the same problem, I tested all door switches. A problem with the cooling fan is another reason for microwave noise. Learn How to Soundproof Your Therapy Office. Hold until the light flashes. It is critical to determine what type of noise your microwave is making because it can be a strong indicator of faulty or worn-out parts. If the noise your microwave is making sounds like the magnetron except louder, it suggests that a faulty magnetron (or diode see below) is to blame. Another reason your microwave makes a popping noise is likely because the cooling fan is dislodged. I took the microwave down from above the range, removed the cover to try and pin point where the noise is coming from. If necessary, remove any components blocking access to the fan. bonniejmuir, The magnetron uses high voltage, high current DC power to generate the microwave frequency that cooks the food. My whirlpool microwave makes a clicking noise and then shuts off after a few seconds. If something is blocking the ventilation, the microwave will overheat and make popping noises. Before repairing a microwave, be aware that it can be very dangerous. Access the stirrer motor from inside the microwave cavity, above the turntable plate. These are normal operating noises. Now it is all fixed. JavaScript is disabled. You might also notice that the microwave doesn't heat your food as evenly. Unplug your microwave and discharge the capacitor. You should always unplug the microwave before you attempt any disassembly. This May Also Interest You: How Much Does a Microwave Cost? s.events = "event16"; After opening your microwave, locate the capacitor (the capacitor is not always in the same place, so youll need to consult the appliances user manual or look online). The microwave turntable turns and food still heats up but it sounds like popcorn is popping even when nothing is inside. As the stirrer motor wears down, it begins to make grinding noises. Use a multimeter to check for electrical current. Follow these steps to diagnose and fix a faulty turntable motor: The stirrer motor powers a metal blade that deflects microwave energy throughout the microwave. It can also dislodge and hit other parts of the microwave as it turns. :), Aug 27, 2019 by 1 of 2 Go to page. 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. 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. It's a common problem, with a variety of causes - here are some of the most likely reasons for a clicking microwave. 2. It can also be challenging to access if you have an integrated microwave. mine sounds like that and blow the fuss, i buy another and blow it again, dont know what to do. If the motor has the proper voltage, but is noisy or won't turn, replace it. Watch the oven for possible arcing if you hear a crackling sound while it is operating. 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. Thankfully, it usually doesn't require an . A high pitch or loud hum points to the magnetron or diode, while a rattling or buzzing sound from the rear of the microwave indicates the cooling fan is at fault. I suspect it has something to do with the capacitor discharging itself when the microwave turns on, but when I opened it up I didnt see any burn marks or other indications of what might be causing it. Here's a YouTube video of a microwave doing this. En espaol. Step 1: Unplug the microwave from the outlet. s.prop43 = "Responsive"; Turn the bracket over to loosen the two screws on either side of the fan blade shaft. However, since it is situated at the top of the appliance, gravity is working against it. First, check to see if anything is blocking the ventilation holes on the back or sides of the microwave. Its similar to frying any oil or fat-based food on a conventional cooktop with oil popping and shooting everywhere when overheating. Steam and smoke from the cooktop are exhausted through a vent into the kitchen and out of the house using these motors. When you open up a microwave, you can usually tell immediately if the diode is defective because it will look cracked or blistered. Or, remove the stirrer motor and see if the microwave stops making noise. If it doesn't, please contact Bosch Customer Support at 1-800-944-2904 for troubleshooting assistance. If it has gone bad, its typically to heat some grinding or clicking sound. Age. Stay close to your microwave while its unplugged and wait to see if the noises go away. If you notice any exposed wires, a frayed cord, or burned parts, your microwave might have an electrical problem. In addition, the cooling fan motor wears out with time and might need a replacement when you start noticing a louder fan noise. Worked for me and took 2 seconds to do for my samsung microwave. I don't notice any of that any more. With your hand making contact with the base of this motor part, you should be able to feel whether or not it feels rough before realizing that replacement is necessary. If the stop is more than 1/16 in. Because of this, you might hear it making a low humming sound even after you are done using your microwave. If it reads between 50k 200k ohms, then its a healthy one. It is recommended that you exercise caution and discharge the capacitor. Options . Motor For Cooling Or Exhaust Fans: In the same way that a turntable motor wears out, cooling fan motors or exhaust fan motors can suffer from wear and tear. If using the probe, make sure it is properly inserted into the food item. A normal electrical resistance reading for diodes is between 50,000 and 200,000 Ohms. So, how can you stop your microwave from making noises when its off? Get the latest HomeServe news, tips, and promotional messages, including special offers. Remove and clean turntable support and rollers. My microwave brand is Frigidaire and I dont have screws on door to tighten, what can it be? I don't really feel like it is safe to leave plugged in or even use. Noises can also be heard when cooking foods with tight membranes such . community. Many of us rely on our microwaves to prepare meals in a rush, so it can be disconcerting if it starts making weird noises. If I remove the turntable motor arm or turn the turntable off, it sounds fine (no unusual noise). Once again, you should set the multimeter to Rx1. An arcing waveguide can be caused by a dirty waveguide or interior walls exposed to metal from chipped wall coverings. Humming or buzzing. By removing and packing the fan back on its axis, it may go back into place freely without having to worry about replacing the device entirely, as some people would typically do in this case. 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 relays are losing power after cycling on and off.