Lg microwave not working but has power. The outlet has power and the fuse box is fine.
Lg microwave not working but has power Find replacement microwave parts:https://www. If the magnetron burns out, the microwave won’t heat. just bought it this summer. Nov 22, 2024 · At a Glance. 2. It could be a loss of power to the appliance, the child lock is on, or a door switch failure. Apr 3, 2023 · Is your LG, Samsung, or GE microwave not working but has power?Don't panic! Discover how to repair microwave oven not heating and fix issue of your microwave not working but has power with our 'The DIY Experts' guide. To fix the issue, unplug the unit, wait 10-15 minutes, and re-test the start button once plugged in. Inspect the Door Switch: About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Dec 13, 2024 · Once all the necessary repairs have been made, reassemble the microwave by placing the outer cover back on and securing it with the screws. Ensure that the microwave is properly plugged into a working outlet and that the electrical circuit is functioning correctly. 06 - LG Microwave Control Oct 8, 2023 · After using the microwave today it suddenly went dead. Jul 19, 2024 · Common issues include a faulty magnetron, a blown thermal fuse, or a malfunctioning diode. In other cases, it might be issues with the turntable, a door switch, or blown fuses. The thermoprotector is a safety feature in a LG microwave that shuts off the power if the LG microwave becomes too hot. It is recommended you test all other parts before replacing the control board. If you do not feel comfortable with this type of repair you can either schedule a service call or take your microwave to a local appliance shop and they’ll be happy to help. LG makes it easy to diagnose problems with your microwave, should you run into any issues. 01 - LG Microwave Control Module. To determine if the fan motor is defective, remove the fan motor from the microwave and try turning the fan blades by hand. Inspect the Turntable Motor Jul 23, 2024 · Remember to follow the prevention tips to maintain a well-functioning microwave for years to come. NOTE: To avoid unintentional operation of the microwave oven, a cooking function cannot be started if the microwave oven door has been closed for about 5 minutes. I checked the breaker first and then checked the outlet and the power is fine. Check if the display shows the correct information and if the control buttons respond Inspecting these two things will help identify whether or not your LG microwave isn’t getting enough power and whether or not it’s fully functional in that sense too. Mar 23, 2023 · Power Supply Issues. If your LG microwave is operating … Here are the most common reasons your LG microwave's buttons aren't working - and the parts & instructions to fix the problem yourself. When the microwave has stopped working it can be for many reasons. One of the most common reasons why your LG microwave is not heating up is due to a faulty door switch. Learn how to use, update, maintain and troubleshoot your LG devices and appliances. Still no power or response from the microwave. com/us/suppo Feb 8, 2024 · What Can Cause Microwave Light Not to Work . This simple power reset can often fix minor glitches and restore normal operation. The hardest part was the disassembly (using a heat gun and paint scraper to carefully remove the stainless cover), and troubleshooting. It may have tripped a breaker or the receptacle may no longer be working. If your microwave oven won’t start, you may have a problem with a door switch. Common problems include not heating up food and not working at all despite power; Checking the Power Source. Try This Check the power outlet. This is the one component where its failure would cause the microwave to both not heat and make a clicking noise. Apr 15, 2024 · Help Library: LG Microwave -Isn't the button working even though the power is ON in the display window?. It is essential to check the internal wiring of the microwave for any loose connections, frayed wires, or other wiring-related problems. I have found it odd that this model does not appear to have a capacitor, or at least not like most of the others do. A Bad Sensor. LG Microwave Display Not Working The part(s) or condition(s) listed below for the symptom Microwave display not working are ordered from most likely to least likely to occur. May 18, 2022 · For next steps, check out these useful links:Help Library Support: https://www. It will turn off the child lock, and the microwave will work as usual. Start Right Here Find appliance parts, lawn & garden equipment parts, heating & cooling parts and more from the top brands in the industry here. Listed below are all the power levels, examples Jul 22, 2022 · Submission form temporarily unavailable. If the door button for your microwave has stopped working, you won’t be able to use the appliance at all. I tried unplugging 5 minutes and plug back on. Set the clock: Some of the microwaves might not work until and unless you set their clock. Turn on the LG microwave and test the control panel buttons and functions to ensure they are functioning correctly. Ensure that the outlet is functioning. I agree with u/biggtime69 this is likely a tripped breaker in the panel. You are dealing with a 1000 Watt radio transmitter and it can kill you if you aren't careful. May 5, 2022 · A sign the membrane is going bad is if you have to press the keypad buttons extremely hard to get them to work. Q: Why is my LG microwave not working properly? A: There can be various reasons why your LG microwave is not working LG Microwave display not working. OP needs to check that first, if that's not it - it might be an internal fuse in the microwave, but that would require diagnostics beyond the typical homeowner's ability to check. Power Supply Issues. You can do this by plugging in another appliance to see if it works. Microwaves won’t work if the door isn’t fully shut. Examine the power cord for any damage, such as fraying or cuts. Following the directions to remove the vent panel reveals the charcoal filter, but no access to the light. (Warning: The microwave oven can store a lethal amount of electricity in its high voltage capacitor, even after the microwave oven has been unplugged. The magnetron is not repairable—if the magnetron is burned out, you must replace it. Answers to Your Questions 1. How to replace the door Nov 25, 2024 · If the settings on the display work normally when you press other buttons, but only the [Start] button is not responding, that may be because the oven doesn't recognize the door is closed. If the microwave start button is not working, the main cause is likely a faulty control panel. Here are some common causes: 1. And their work is to turn off power if the units overheat. It can also be a diode or the magnetron but those usually have other symptoms too. The manual makes no mention of this being a serviceable part. Wait for 10 seconds for the microwave to discharge residual electricity. LG Model No: LMV2031ST. Apr 28, 2024 · Replace the board or the microwave. To determine if the thermal fuse has blown, use a multimeter to test it for continuity. A microwave, not heating, can be very frustrating. A simple oversight in the power connection could be the reason your microwave’s turntable isn’t functioning. The word “door” will appear in the display until the door is opened and closed. Check or test each item, starting with the items at the top of the page. Apr 26, 2022 · An LG microwave not working but having power can be the symptom of any number of problems. NEW YEAR, NEW SKILL 🛠️ Master 8 Essential Jun 23, 2021 · If your microwave not working but has power, find the button with the padlock button and press it for a few seconds. My goal with this guide is simple. In this comprehensive guide, we will delve into the intricacies of LG microwave power levels and uncover the reasons behind this enigmatic message. Check the Power Outlet. First, make sure the microwave door is closed properly. When the thermoprotector is triggered, the LG microwave will not start or heat. How does this membrane work? The touchpad membrane is made up of two thin layers of plastic that have a conductive substance on the inside of each. We explore common issues like power connections, door switches, and magnetron faults, along with detailed troubleshooting steps. to (GMT -05:00, United States of America local time) We apologize for this inconvenience. It’s also possible that the thermal fuse blew or the door latch is faulty. Oct 23, 2019 · Is your microwave not working, even though it has power? We’ll show you the most common reasons for this experience. The thermal fuse cannot be reset—if the fuse is blown, it must be replaced. So, handle your LG microwave with care. Check the door and make sure it’s closed Dec 1, 2023 · Why Does My Microwave Not Work When The Light Is On? The microwave not working properly while the light is on can be due to several reasons. lg. Appliance Technician: Clark, Jeff Here are some troubleshooting steps you can try: Now all my buttons work again. Jul 6, 2023 · When your microwave is not working after a power outage, you can easily become concerned over the appliance’s price of repairs or replacement. That means you’ll need to replace the button. Apr 6, 2024 · If you’ve ever wondered why your LG microwave displays “Power 100,” you’re not alone. If your Samsung microwave has power but isn’t working, don’t worry. Any ideas what the issue could be would be appreciated The thermal fuse cuts off power to the microwave if the microwave overheats. Not all microwaves have rack Help library: No Power - Microwave Oven Learn how to use update maintain and troubleshoot your LG devices and appliances. Jul 19, 2023 · A: To reset your LG microwave, unplug it from the power source for about one minute. I have a deep love for interior design and DIY projects, which inspired me to create my own blog to share my knowledge and tips with others. The outlet has power and the fuse box is fine. None of the above processes can occur if it breaks or burns Nov 6, 2024 · If not, clean the glass plate and rotation ring and reassemble them so that they do not tilt. Today’s morning, I wanted to heat my meals, but I noticed that my LG microwave is not turning on. May 19, 2016 · To determine if any of the door switches are defective, use a multimeter to test each of the switches for continuity. Reconnect the Power. Sep 3, 2024 · This article goes through all the possible reasons why your LG microwave is not heating, helping you solve this frustrating problem and get things back working again. Started today. If your microwave is just not heating food, the first thing to do is check the power source by plugging the device into another outlet. Plug the LG microwave back into the power source or switch on the dedicated circuit breaker. Examine the power cord for any visible damage or fraying. In some instances, it can be as simple as resetting the GFCI switch. A faulty diode can disrupt the flow of electricity to the magnetron, affecting heating. If you encounter any difficulties or have concerns about the safety of the repair, do not hesitate to seek professional assistance from a qualified appliance repair technician. It started after electricity went out and back for some time last week. May 5, 2022 · An LG microwave not starting could be one of three things. Microwave Does Not Start. com/Shop-For-Parts/a6/Microwave-Parts?TLSID=?1894Visit our Microwave Repair Help for more troublesh Reconnect the Power. The thermal fuse, thermal protector, and cavity fuse are available in Whirlpool, LG, KitchenAid, and Samsung microwave. They may not rotate properly due to a foreign object. Your LG microwave isn’t heating up, and you might be wondering why. Nov 14, 2023 · LG Microwave – Troubleshooting the Keypad Not Responding. Newson's Electronics reducing e-waste one repair at a Nov 27, 2024 · To know more about power level, check the power level table below, or refer to the owner's manual of your microwave. Your LG microwave might not turn on if you haven’t closed the door properly. The control panel is unlit, etc. Microwave has power, but heat is not working. The display isn’t lite and there’s no power to it. Haven't Microwave has power, but heat is not Apr 14, 2023 · My LG microwave was working properly before this morning. Try plugging it into a different outlet to rule out any electrical issues. If the microwave is buzzing or humming, but it isn’t heating, then there are a couple of possibilities. Click on Shop Parts, or select the kind of product you're working with on the left and we'll help you find the right part. If the power supply is faulty, your microwave won’t be able to cycle or function in any way. If the microwave is not working and there is no power to it, there are a few things to check. Most microwave ovens will include a high voltage diode that is responsible for converting the A/C power output delivered by the transformer to D/C. 3. Nov 21, 2024 · Is your microwave suddenly silent? Discover why it may have stopped working in our comprehensive article. Take out the glass plate and clean the inside of the oven with a dishcloth. If your microwave is not working despite having power lights and displaying the model number LMV1683ST, there could be a few possible reasons for this issue. HVAC, and outdoor power Anytime a microwave runs but does not heat, it indicates that the magnetron (the component that produces the energy for cooking) has failed. It also won’t have a functioning display or interior light. A Worn Rack Support. It's only 2 years old. Power levels determine the intensity at which the microwaves are generated, and ultimately, how quickly and evenly your food is cooked. Inspect the Power Cord. Dec 28, 2020 · Is the display not showing anything or is what it shows deformed in some way? These are issues, and they can be highly disruptive ones at that. Does you microwave not work? Well it could be a simple fix of just replacing the doors contact switch. Here’s what to check: Dec 25, 2023 · Also, a faulty door switch can cause your LG microwave not to work, as the door switch interrupts power when open. (This is a small component that ensures that the microwave does not overheat. If your microwave is running but not heating food, it might be because the thermal fuse, cavity fuse, or thermal protector is faulty. How to Troubleshoot Cold LG Microwave The microwave switch holder is the component that houses the door switches behind the control panel. Though, this is not a common problem, the main control board may be defective. Ensure the LG microwave is receiving power. 4 days ago · Key Points: Back to Warming Delights. Faulty Door Switches. . LG microwave not heating and making noise may be due to a broken high voltage capacitor. The door switches, often referred to as primary or secondary interlock switches, provide power to the various components in the microwave when the door is in a closed position, and interrupt power when the door is open. When using your microwave, the turntable does not turn and the microwave does not heat up ; The microwave light does not come on when the door is opened; How to replace a broken door switch . After checking a few things I found that the fuse above the control panel behind the vent above the door (I believe the time delay fuse, part number LG 3B74133Q, 205v/20A) is 2 days ago · Power Source Issues 1. If the power flow was interrupted, then the settings get erased. We installed this OTR microwave (ThinQ model MVEM1825F) last year and the interior light just quit working the other day. The nine power levels in addition to HIGH, provide a choice of the best level for the food being cooked. Turn on the LG microwave and verify that the new display board is functioning properly. Check the Power Supply. To avoid replacing unneeded parts we recommend having a Sears Home Services professional perform diagnostic tests to identify the root cause of the problem. Aug 3, 2024 · Summary: Restoring Microwave Oven Power. You would actually have to measure the voltage and the amperage going into the microwave to find out if the issue is there. After long usage, appliances wear and tear. I searched for my LG microwave instruction manual for tips but didn’t find it anywhere. ) Certain microwave models may require the system clock to be set before they commence functioning. Apr 26, 2022 · There is one main reason for an LG microwave not heating and making a clicking noise. Aug 6, 2024 · 1. Before we dive into the steps of changing the power level on your LG microwave, let’s first understand what microwave power levels are. Test the Replacement. repairclinic. If your GE microwave is not working despite having power, the first thing to check is the power source. Feb 9, 2024 · Troubleshooting Steps for an LG Microwave Not Heating Food. Download a copy of your owner's manual from our Manuals and Document page. That is the most common reason for this problem. Luckily, as I hope this piece has helped you better understand, addressing the most common causes behind a microwave not working is easy and quick. Faulty Door Switch: The door switch may be damaged if the door switch is faulty. (Caution: The microwave oven can store thousands of volts of electricity in its high voltage capacitor, even after the microwave oven has been unplugged. Customer: My LG microwave is on but it's not rotating or heating Contractor's Assistant: Do you know the model of your LG appliance? How old is it? Customer: Let me look Contractor's Assistant: How long has this been going on with your LG appliance? What have you tried so far? Customer: Just today. Door Switch. How to replace the main control board: Unplug the Jan 8, 2025 · These are the steps that will help if a microwave start button is not working. Visually inspect the power cable to ensure that it is not damaged. A microwave owner who has a new appliance with a non-working display may not have installed the microwave correctly. Other issues, like the magnetron failing, could cause similar problems but wouldn’t cause a total loss of function. By following the troubleshooting steps outlined above, you can identify and resolve the cause of your LG microwave not heating up. Check the Outlet. If the motor has power but won’t run, replace it. Read further to understand what you should look at and when you should call a repair technician. Read: LG Microwave Not Working But Has Power – Troubleshooting Guide. Aug 30, 2020 · Plug the microwave back in; Defective Main Control Board: microwave turntable not turning. I have tried to find out the reasons but I could not. In this article, we will guide you through the process of troubleshooting your LG microwave when it has power but isn’t working properly. Wear And Tear. This also happens if the child safety lock is active on the appliance. What Is the In some cases, the microwave is not working but has power because of a defective power diode. If the lamp inside the product turns on when the door is opened, it's not power failure issues. The diode is in charge of converting the high current power/low voltage into low current power/high voltage to generate microwave power. Turn on the LG microwave and verify that the new user control and display board is functioning properly. The microwave will not turn on if the door switch is not functioning properly. Oct 22, 2021 · LG NeoChef™ Microwave Oven - Troubleshooting Issues [Narrator] Here are some troubleshooting steps that may help prevent common issues when using your Neo chef microwave oven. If the main control board fails, your microwave may not heat properly or even turn on. May 23, 2023 · Poor wiring connections or damaged wires within the microwave can lead to power supply issues and cause the appliance to stop working. If any of the door switches does not have continuity, replace it. If it doesn’t work, go to the circuit breaker in your house and find out which one is for your microwave. Signs your door switch is faulty. Electrical common microwave problems: If there is a problem with the electrical connection or wiring, the microwave’s inside light might not work. You are at the right place if you have an LG microwave and want to know why it’s not heating. If your microwave has experienced a power surge or other electrical fault, this kind of event can prevent it from heating. The actual fix was simple. Wait a few minutes to make sure the capacitors have fully discharged. Nov 6, 2024 · LG Microwave - Troubleshooting the Start Button Not Working . Before we dive into the troubleshooting steps, let’s first understand the common issues that can arise with LG microwaves. By following the steps outlined in this guide, you can troubleshoot and repair a microwave oven that has lost power. Microwave screen suddenly decided to kill a pixel today. Your microwave might not heat due to some simple issues or severe problems. Use a multimeter to test the power cord and outlet for continuity. You can test the outlet by plugging in another appliance to see if it works. Power issues that lead to your LG microwave not heating include: A loose power cord; A faulty wall outlet; A tripped circuit breaker; An improper wall outlet Feb 10, 2023 · Start by turning off the power to the LG microwave at the circuit breaker. Here’s how to reset your microwave and hopefully fix the problem: Unplug your microwave from the power outlet. However, the most common issue is going to be the thermal fuse. From power supply issues to magnetron failure, understanding the potential causes will empower you to restore your microwave to its optimal performance. This code is mostly associated with a faulty oven temperature sensor. Ensure that the microwave is securely plugged into a working power outlet. One of the most common issues with the LG LMC2075ST microwave is when it fails to start. However, if your display or control panel are having issues on a microwave, can you actually the repair them? While a microwave looks like an appliance that is difficult to take apart, it really isn’t. For a microwave with no power, check the power source, door latch, and fuse. One of the first things to check is whether your microwave is receiving power. Nov 29, 2024 · What To Know The waveguide cover, located at the top of the microwave cavity, transmits microwaves from the magnetron to the food. If your LG microwave is not working and has no power, try unplugging it for five minutes. To determine if the thermoprotector is the issue, you can use a multimeter to test its continuity. Click on Shop Replacement Parts, or select the kind of product you're working with on the left and we'll help you find the right part. Check the Door. LG Microwave not working. Empower yourself It may be something related that it's not has nothing to do with the microwave, but that will require some additional troubleshooting. Unplug the microwave for a few minutes and then plug it back in. Oct 9, 2023 · Understanding Your LG Microwave’s Power Levels. If the fan blades do turn freely, use a multimeter to test the motor for incoming power and for continuity. Check the Power Source: Ensure that the microwave is properly plugged into a working outlet. Your LG microwave could be getting old, thus the broken button, among other parts. Remove the LG microwave grill and control panel to access the door switch. The oven probably has a 50A-240V outlet, and the microwave likely has a 20A-120V outlet. If an issue occurs, the microwave is programmed to communicate diagnostic messages, displayed as codes, that can assist you, or a technician, in getting the unit back to optimum performance. The control board regulates power to all the different microwave components. May 5, 2022 · Read: Why LG Microwave Not Heating And Making A Clicking Noise? Other Possible Issues. To resolve these problems, users can check the power supply, inspect the magnetron, test the diode and capacitor, and ensure the door switch is functioning correctly. It’s best to look in the manual for your LG microwave model to find out what replacement button is compatible with the unit. Learn when to seek professional help, understand the costs involved, and find preventative maintenance tips to extend your microwave's life. A damaged magnetron can lead to a complete failure of the microwave. So, be sure the turntable motor is not getting power and all other components are intact before resorting to this repair. If your LG microwave isn’t cycling, the first place to check is the power supply. Your LG microwave needs consistent and sufficient power to work properly. If you plug in your microwave oven and it does not work properly, make sure the unit is plugged into a dedicated power outlet. Customer: Microwave has power, but heat is not working Contractor's Assistant: What's the brand and model of your microwave? How old is it? Customer: LG Model No: LMV2031ST. If the fuse does not have continuity, replace it. 10. Repairing a microwave can be dangerous because microwaves hold high voltage even when the power is off. This can be a problem especially if you have an over-the-range version that you installed yourself. Probably it has been lost. If the blades do not turn freely, replace the fan motor. If this does not work, the control panel has to be replaced. If the appliance has any power supply issues, the microwave won’t heat. 1. If the microwave works, it could be that outlet was faulty. The diode is responsible for converting electricity into high voltage energy that powers the magnetron. Jan 9, 2023 · Some microwaves though will not run at all if the door switch is broken. Test the Door Latch: Plug the microwave back into the power outlet and test the door latch to ensure it is working correctly. Let’s explore some of the most frequent reasons why your LG microwave may not work as intended. Clean the glass plate and rotation ring thoroughly with water, dry them and replace them correctly so that they do not tilt. This enigmatic message has puzzled many users. It does have capacitors, just not a single large high voltage one. Proper ventilation is essential for safety and efficient operation. After five minutes, test the microwave out again. If this is your problem, your microwave won’t be cycling. In this informative guide, we will delve into the possible reasons your LG microwave isn’t heating and provide professional insights to help you address the problem effectively. How to Fix a Microwave That Has Power But It’s Not Working? Apr 26, 2022 · A microwave that has power but isn’t heating at all likely has a blown diode. Replace the cord if necessary. (That's why the time is not there, still didn't set it up again) (also that's supposed to be a zero) This video shows you how to Diagnose and Repair a *JDM1630WB004 GE Microwave 10QBP0230 Magnetron**Symptoms may include:* Has Power but Is Not Heating or Not You should also teach your household by being an example in your home. Unplug the microwave May 10, 2020 · Just be sure to disconnect the power before working on a microwave, as leaving the power on can be extremely dangerous. A quick note on safety It’s important to know that microwaves have a component inside called the high-voltage capacitor. Unscrew the switch assembly to apply the multimeter probes to the switch terminals. Haven't Microwave has power, but heat is not Sears Home Services recommendations for a microwave that has stopped working. Apr 6, 2022 · A microwave not heating can be an inconvenience. Can I use a microwave without a vent? No, it is not recommended to use a microwave without a vent. If the warranty period on the magnetron is still valid, I suggest that you contact LG customer service regarding a repair inspection. Banging your microwave door and mishandling other appliances will cause you heavy losses. Before settling for cold leftovers or buying a new one, check out Bob Vila's troubleshooting tips. If it doesn’t work, it could be that the microwave itself is broken. Then, plug it back in and check if the issue is resolved. LG Microwave Door Button Is Broken. Plug the microwave back into the power source or switch on the dedicated circuit breaker. com/us/support/help-libraryTo request a repair: https://www. Generally, your microwave is not working but has power because the power diode is dead, there are foreign objects stuck on the door, or the turntable broke. The microwave switch holder is the component that houses the door switches behind the control panel. Dec 11, 2023 · Reset the microwave. If the microwave isn’t heating, confirm the power level settings, and consider checking the magnetron, capacitor, and diode. Troubleshooting a Samsung Microwave That Has Power But Isn’t Working. My LG microwave is about 2yrs old. Sep 25, 2024 · I am Amelia Caroline, a passionate home improvement enthusiast and blogger. In a nutshell, it is a regulator of power in your microwave. If there is no power, confirm the circuit breaker has not tripped. LG Microwave Exhaust Fan Not Working The part(s) or condition(s) listed below for the symptom Microwave exhaust fan not working are ordered from most likely to least likely to occur. Dec 30, 2024 · Damaged Magnetron: The magnetron is the core component of a microwave that generates the microwaves used for cooking. You have an inverter type microwave and I can't recommend self service. Check the Power Source: Ensure that the microwave is properly plugged in and that the outlet is functioning. Jan 22, 2025 · If your microwave has no power, this can be caused by a poor connection to the outlet, the outlet isn't receiving power, or there is a failure with the unit requiring service. just bought it this summer Contractor's Assistant: How long has this been going on with your LG microwave? Sep 13, 2023 · If your LG microwave is not heating, its capacitor, thermal fuse, or magnetron might be burned or damaged due to power supply issues. Using a microwave that isn’t functioning properly can be really frustrating. Hi. Start Right Here Find appliance parts, lawn mower & equipment parts, HVAC parts, and more from the top brands in the industry. Mar 13, 2024 · LG Microwave - Troubleshooting the Start Button Not Working . Ensure the LG microwave is receiving power and the control panel lights up. This method applies an impact to the door to remove any debris. If the switch holder is damaged or misaligned, one of more switches may not be actuated when the microwave door is closed, resulting in the microwave not working. Shorted Diode: A shorted diode in the microwave’s power circuit can prevent the flow of electricity to the magnetron, causing the microwave to not work. Nov 4, 2024 · Check the Power Supply. Ensure the microwave is receiving power. Turn on the LG microwave and test the functionality of the micro switch. I bought a new fuse and thermal fuse which I saw online could be the issue. Microwave Does Not Heat. There is a safety measure put in place in every single microwave oven that prevents the appliance from running in case the door is open. You can follow these easy steps to find out what’s wrong and fix it. Oct 9, 2021 · A lack of power is often behind an LG microwave not working. The magnetron has likely gone bad. Lightbulb issue: If the lightbulb has burned out or is not operating properly, the light within the microwave may not be working. To make your LG microwave heating work again, inspect the capacitor, thermal fuse, and magnetron and replace them if needed. It is the magnetron that creates the 'heat' so whilst it may not be the magnetron itself that is the problem (but perhaps some components that supply the magnetron) you could be voiding the warranty on the magnetron if you attempt to open the microwave to May 12, 2022 · Read: LG Microwave Not Working But Has Power – Troubleshooting Guide. Turn on the microwave and verify that the new display board is functioning properly. Before diving into more complex troubleshooting, ensure that your microwave is properly plugged in and receiving power. elqvrlucaunoqpxpnifkqkubobaqtawgqziqxissthulfpvbrpuhnnbclrrdnciqnvfozjlewgvcvkf