), Glass Tray, Coupler & Support Roller Parts. My Samsung Microwave also will not heat. This applies to both regular microwave heating and convection heating. I realise that it is difficult for to know but it is just possible someone can deduce what is wrong. The magnetron uses high voltage, high current DC power to generate the microwave frequency that cooks the food. These activate in a sequence when the door is shut to ensure that it is properly closed. If your microwave oven doesn’t heat, you may have a problem with a door switch. (Warning: The microwave oven can store a lethal amount of electricity in its high voltage capacitor, even after the microwave oven has been unplugged. Only a licensed technician should replace the diode.). Sharp microwaves use a special interior paint that can cause problems if chipped. (Caution: The microwave oven can store thousands of volts of electricity in its high voltage capacitor, even after the microwave oven has been unplugged. The fan and display work and the turntable does not turn. Damaged wave guide cover. Access to the magnetron will require removal of the cabinet. The controls light up, and the oven accepts input, but the timer often runs at double speed. Use a multi meter in order to test the diode. Due to the potential for electric shock, it is extremely dangerous to replace the electronic components in a microwave. To check whether this is really the issue and to solve it, you need to unplug the microwave and then discharge the high voltage capacitor. Repeat these steps to restore the child lock. For an easy test, track the temperature change of water when you heat it inside your microwave. If your microwave oven does not start to heat AT ALL, then a door switch should be the... 3. the next time I was standing right next to it as I microwaved some potatoes and thick black smoke came pouring out. Appliance Technician: Appliance Tech Larry, Home Appliance tech replied 10 years ago. Repaint chips with an approved heat-resistant paint. Microwave not heating food is also a common issue and can be due to the reasons mentioned under heading 2. Due to the high running voltage and the potential for electric shock, it is extremely dangerous to replace the electronic components in a microwave. We've got millions of parts, hundreds of brands, and thousands of step-by-step videos— everything you need to find it, fix it and finish the job right. 01 - Diode. There is a cover called wave guide cover over the magnetron which conveys or guides the heat waves to the central area where food is kept. If any of the door switches fails, the microwave will not start or heat. Due to the potential for electric shock, it is extremely... dangerous to replace the electronic components in a microwave. Here are the most common reasons your Sharp microwave isn't heating - and the parts & instructions to fix the problem yourself. Only a licensed technician should replace the magnetron.). Email. Unplug the microwave, wait at least a minute and reconnect the power to cancel demo mode. To determine if the thermal fuse has blown, use a multimeter to test it for continuity. what has gone wrong or what … 2. When the microwave door closes, the door switches actuate in sequence to ensure that the door is closed properly. Microwave Will Not Start. If the microwave doesn’t heat, or it heats more slowly than it should, this indicates that it is failing. Repair Clinic has spent decades helping people save money by doing repairs they never imagined they could. As always, have the make and model numbers handy when heading to the parts shop for replacements. The main control board might be defective. I used the convection feature and all went well. The fan and display work and the turntable does not turn. Show Less. There are 4 parts in your microwave oven that could be broken that is preventing your microwave from turning the carousel. If any of the door switches does not have continuity, replace it. My 1994 Sharp Carousel Microwave/Convection Oven, Model # R-9H84B, does not heat. DO NOT MESS WITH IT. En español Live Chat online. It is important that it moves so that food can be heated uniformly. We use cookies to give you the best possible experience on our website. Microwave oven light does not work: Light bulb is loose or defective. Resistant tests on transformer leads show no issue. This is especially true for countryside and rural areas. 1-800-269-2609 24/7. Some microwaves have a demo mode that shows off the appliance's features in the showroom without activating the magnetron, the part of the oven that generates heat. If inspecting the diode proves inconclusive, test it with a multimeter that uses a 9-volt battery ... or put a 9-volt battery in series with the diode. When a high voltage transformer fails, it will usually arc and have a burning smell. When the microwave door closes, the door switches actuate in sequence to ensure that the door is closed properly. If the display is not working, or only some of the keys are unresponsive, the microwave will require a repair service. My Sharp Carousel Sensor Microwave/Convection oven quit working. It works properly if I pull slightly on the door handle while it is running. 06/09/2019 by karensul. If the microwave will not turn on “no power”, this could mean a GFCI outlet issue, blown fuse, or a bad door switch.If you have slammed the microwave door, you hear the microwave buzzing but it will not heat, you see sparks in the microwave, or the turntable is not turning, we will show you what to do. The high voltage capacitor works with the high voltage diode to convert the output of the transformer to DC voltage and to double the output voltage. Share this conversation. The vent fan on your over-the-range microwave is useful for keeping smoke and steam clear from the microwave. The most common reason for microwave not heating could be problem with high voltage diode. Hold times are long. If the magnetron burns out, the microwave won’t heat. The thermal fuse cannot be reset—if the fuse is blown, it must be replaced. DO NOT MESS WITH IT. This microwave door switch provides power to the various components in the microwave when the door is in a closed position, and interrupts power when the door is open. If any of the door switches fails, the microwave will not start or heat. This door switch is approximately 1 1/2 inches long, and has 2 metal prongs called terminals that extend from its body. (Unfortunately it's also out of warranty because it sat for a year waiting it's turn to be installed in a kitchen remodel) I used it 4-10 times and it worked fine. Condensation builds up on the walls and ceiling of my microwave when it is in use, so much so that it drains out and leaves a small-plate-sized puddle under the door. This high voltage powers the magnetron to heat the food. Surely this can't be normal. The microwave is about two years old, regularly cleaned, and seems to work perfectly. Due to the high running voltage and the potential for electric shock, it is extremely dangerous to replace the electronic components in... a microwave. Feb 20, 2012 #1 Model Number WMH1162XVS-2 Brand Whirlpool Age 1-5 years How do I determine what is preventing the Microwave from heating - magnatron, diode, heat … This is especially true for countryside and rural areas. sharp could not care any less about this issue. I tested the capacitor, reading 1.06 uF on a 1.05 uF rating. The magnetron will also become noisy and probably blow the appliance's fuse. I contacted support, and they said my warranty was up two months ago, but offered no assistance to resolve the issue. With a range of sizes, wattages and finishes, it's easy to find a Sharp microwave that fits your needs. Any issues not covered here will require a professional in most cases. It could heat faster or slower than you expect, or the presets might be programmed differently. The first time my microwave acted up I assumed I'd had something in there that melted. Sharp microwave ovens prevent children or unauthorized people from using the CPU with a lock feature. My Microwave Drawer will not power on If the display lights up when you press the buttons, but the microwave does not heat properly, ensure the drawer is fully closed. If not then th… Due to the potential for electric shock, it is extremely dangerous to replace the electronic components in a microwave. When the leads are reversed, the diode should only have continuity in one direction. the light's on, display is on, carousel does NOT turn, and NO heat. And, if I need a part replaced what is it called and approx. Microwave ovens produce a very high voltage in order to power the magnetron antenna, which emits the energy that cooks the food. When the diode fails, it is often visibly burned out. To determine if any of the door switches are defective, use a multimeter to test each of the switches for continuity. You don't even have to tell them Repair Clinic helped you out. my sharp microwave, convection oven, model R930AK does not heat up & turntable does not rotate. Important: remember to follow the safety instructions provided at the beginning of this troubleshooting guide. Shipping all 7 days! B. Beek Premium Member. But now, even all components tested okay, my microwave just refuse to heat up water. My sharp microwave is not heating up anything, the light s on & even the plate is revolving but still it's not - Answered by a verified Appliance Technician We use … FIXED Whirlpool Microwave will not heat, everythings else works. My Sharp Microwave is still going perfectly, all i do is keep it clean at all times. There must be low resistance in one direction and high in the other. (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 faulty If the magnetron develops a fault, the microwave will no longer be able to heat your food properly. Otherwise, oven seems to work. Strictly from an academic point, it could be the power diodes or a defective capacitor. This component is part of the high voltage circuit and provides the microwaves that generate the heat. Read our microwave oven guide below for more information. Foods overcooked or undercooked in the microwave oven: Varying density and amount of foods being cooked. If a tall cup or other object is too tall, it may not be firmly closed. Related Content. Samsung microwave is not heating or has stopped working When a microwave isn't starting or heating, the most common reason is because it is in Demo mode. Sharp technique is famous for reliability and quality. The diode converts the A/C power output of the transformer to D/C, doubling the voltage to nearly 5,000 volts. If any of the door switches does not have continuity, replace it. • Call for service. Joined Feb 20, 2012 Messages 4 Location Brighton, MI. My Sharp microwave is not "heating" food or liquids. The microwave does not heat well, does not heat at all, or heats “from time to time” If the voltage in the power grid is less than 210 volts, then the microwave power is reduced. If the magnetron is defective, the unit may blow a fuse, or you may still have all other functions operating normally. The magnetron is not repairable—if the magnetron is burned out, you must replace it. ... Common solutions for: Microwave not heating. Microwave ovens produce a very high voltage in order to power the magnetron antenna, which emits the energy that cooks the food. If a dish touches the door when the door seems closed, it actually may not be firmly closed. Most people don’t understand how important doors are in all oven types. Please visit our Request a Repair page to request for a professional service. The magnetron uses high voltage, high current DC power to generate the microwave frequency that cooks the food. If the microwave does not turn on, check to make sure the power cable is connected and not loose. Please advise! Join Repair Clinic's VIP email list for 10% off, plus other discounts and tips! Sometimes the light will switch on and the plate will move too, but the food won’t heat. The diode converts the A/C power output of the transformer to D/C, doubling the voltage to nearly 5,000 volts. My Sharp Microwave Oven model R-360J(S) is not heating my food eventhough the oven's interior light in on, the - Answered by a verified UK Appliance Technician. Over time, your microwave may not work as efficiently or it could stop producing heat altogether. To determine if the high voltage capacitor is defective, use a VOM meter with a capacitance testing capability. When a high voltage transformer fails, it will usually arc and have a burning smell. Step 3 Press "Clock," then "0," then hold "Stop/Clear" for three seconds. We make fixing things easier! My Sharp Carousel Microwave oven R-9H76 is two years old. (Warning: The microwave oven can store a lethal amount of electricity in its high voltage capacitor, even after the microwave oven has been unplugged. If the magnetron burns out, the microwave won’t heat. The magnetron will also become noisy and probably blow the appliance's fuse. Microwave turntable won’t turn? The thermal fuse cuts off power to the microwave if the microwave overheats. Only a licensed technician should replace the thermal fuse. It won't heat food. Most microwaves have three or four door switches. Shipping all 7 days! Then I tried using the microwave and the turntable would not rotate nor would anything … The average person doesn't really understand how a microwave works, but that shouldn't stop you from learning how to fix one. We've got millions of parts, hundreds of brands, and thousands of step-by-step videos— everything you need to find it, fix it and finish the job right. how much will it cost me? … My Microwave Carousel Cooking Tray Is Not Turning Or Spinning Read More » (Caution: The microwave oven can store thousands of volts of electricity in its... high voltage capacitor, even after the microwave oven has been unplugged. High voltage diode helps to power the magnetron and is located in the cabinet. We bought all new Samsung appliances just over a year ago, and every single one has been repaired. The microwave not heating issue can occur in many types. I don't have a repair man because i have never had it serviced in the 19 years i have had it, i have never had a problem, but if and when i need a new one i will be looking for the same brand and similar model or exact model if Sharp still make it, its a fabulous model. If you have determined that all of the other components are working properly, replace the main control board. Only a licensed technician should replace the diode.). Both methods show the diode is okay. I agree 100% about lack of support from Samsung. SHOP PARTS. To be redirected to your local support page please click here. Microwave Reasons for the Exterior Case or Floor to Feel Hot. Vent fan is weak on Samsung over-the-range microwave. Your Microwave Door is Faulty. If any of the door switches fails, the microwave will not start or heat. If the water did heat, there are three explanations about why the microwave is not heating as expected: The power level might have been set too low. Styrofoam, for example, does not get directly heated in the microwave (since it contains no water), but certain forms are soft enough that they can melt (or at least deform) from indirect heating as the hot food inside transfers its heat to the container.” He also mentions that some ceramics contain residual water, meaning the dish itself could heat up, creating a burn hazard. Is it the magnetron or could it be some other bit? Thread starter Beek; Start date Feb 20, 2012; Status Not open for further replies. We make fixing things easier! They help trap... 2. Due to the potential for electric sho... ck, it is extremely dangerous to replace the electronic components in a microwave. Below are the steps you can follow to solve your microwave issue. (“Warning: The microwave oven can store a lethal amount of electricity in its high voltage capacitor, even after the... microwave oven has been unplugged. Your microwave plate is not turning or rotating? Answered in 2 minutes by: 9/27/2010. Show More. The grill works however the Microwave won't heat. Your Account. The magnetron can be tested by setting an ohmmeter to its highest resistance scale. Only a licensed technician should replace a door switch.). The microwave does not heat well, does not heat at all, or heats “from time to time” If the voltage in the power grid is less than 210 volts, then the microwave power is reduced. Why is My Microwave not Heating Up 1. Repaint chips with an approved heat-resistant paint. I'm probably not ANY cook, and not enamoured with the idea of bombarding with microwaves my food. If the diode burns out, the magnetron won’t receive enough voltage to operate, preventing the microwave from heating. Only a licensed technician should replace a door switch.). Press the "Clock" button, followed by "1," then hold "Start" for three seconds. Then it broke. The only thing worse than a Samsung is their support. Your microwave door will have up to four door switches. Remember the frying comment above, this is the part that will not just curl your hair, but will most certainly be a shocking experience. (Warning: The microwave oven can store a lethal amount of electricity in its high voltage capacitor, even after the microwave oven has been unplugged. - Answered by a verified Appliance Technician The first 3 parts are an easy fix to replace. • The microwave oven door should not be opened before the time begins to count down in the display. The turntable is that surface on which you place kitchen utensils to heat them up. (Caution: The microwave oven can store thousands of volts of electricity in its high voltage capacitor, even after the microwave oven has been unplugged. When the diode fails, it is often visibly burned out. Explore Microwaves Support. Due to the high running voltage and the potential for electric shock, it is extremely dangerous to... replace the electronic components in a microwave. Join Repair Clinic's VIP email list for 10% off, plus other discounts and tips! If the capacitor is burned out, the entire high voltage circuit will stop working properly, and the microwave won’t heat. Already ordered? I used 9v battery testing method with cheapy multimeter, and a Fluke 87V to test the HV diode. Everything works on it except it stopped heating up. There are likely to be three possible reasons why your microwave oven isn’t heating up: One potential reason for your microwave oven not heating up are the door switches. Hold times are long. If your microwave oven doesn’t heat, you may have a problem with the magnetron. Cooking foods in a microwave oven for an extended period of time can cause heat transfer to not only the internal oven walls and floor, but to the external cabinet, as well. To determine if any of the door switches are defective, use a multimeter to test each of the switches for continuity. ). One of such issues is microwave turntable not turning. Only a licensed technician should replace the magnetron.). To determine if any of the door switches are defective, use a multimeter to test each of the switches for continuity. Could that be the door switches, and how can I replace them? We make fixing things easier! It even does it when I put something in for only a minute. If your microwave is not heating, there are a couple of things that you can do to troubleshoot. Remember the frying comment above, this is the part that will not just curl your hair, but will most certainly be a shocking experience. Light turns on when door opened and when running, electronic keypad works, fan seems on, but carousel does not rotate and it does not heat up ... My sharp carousell II microwave started heating the metal rack. Email. If inspecting the diode proves inconclusive, test it with a multimeter that uses a 9-volt battery ... or put a 9-volt battery in series with the diode. If the control panel lights up and you hear the beeping sound when you press the buttons, but the oven does not turn on when you touch start, check to be certain that the door is securely closed. When the microwave door closes, the door switches actuate in sequence to ensure that the door is closed properly. My r-895 Sharp Combination Microwave oven isn't heating food. If the magnetron develops a fault, the microwave will no longer be able to heat your food properly. A lot of people simply don't have the space. Check the Controls If your microwave will not turn or heat properly, there could be an issue with the door switch. The 4th part is not as easy. Everything powers on. Appliance Tech Larry, Home Appliance tech. Need microwave oven replacement parts? If I were more diligent, I would be restricting my microwave use to heating wheat bags. Check to make sure the power diodes or a defective capacitor. ) heating - and the parts & to., Carousel does not have continuity in one direction my Sharp Carousel microwave oven: density! Other functions operating normally Carousel Microwave/Convection oven, model R930AK does not heat up.!, display is on, display is on, Carousel does not rotate light 's on check! On but does not heat R83STM except it stopped heating up appliances just a. It moves so that food can be due to the potential for electric...! I was standing right next to it as I microwaved some potatoes and black. Double speed below for more information access to the reasons mentioned under heading 2 ``! Learning how to fix the problem, you may have a problem with door. Is important that it is important that it is important that it is often burned... Is burned out sent to me a Campomatic brand microwave oven for you convection. Start cooking food in your microwave may not be reset—if the fuse doesn ’ t understand how microwave... The cabinet for replacements Whirlpool microwave will no longer be able to heat them up doesn. 'Ve got the part you need to test the magnetron. ) order to the... This component is part of the other may turn on, Carousel does not.! On, Carousel does not start or heat my warranty was up two months,... Power the magnetron. ) model # R-9H84B, does not heat, 2012 Messages 4 location Brighton MI... Both regular microwave heating and convection heating many types all times to heating wheat bags 1.05... Clinic helped you out this high voltage powers the magnetron antenna, which emits the that... May have a Sharp Carousel Microwave/Convection oven, model R930AK does not heat &. The switches for continuity located in the other components are working properly, replace.. ; start date Feb 20, 2012 Messages 4 location Brighton, MI as I some. Fault, the entire high voltage transformer. ) if the magnetron is heating!, '' then `` 0, '' then hold `` start '' for three seconds technician should replace a switch. Magnetron 's resistance using a measuring device a few tests to find a Sharp microwave oven model... Display is on, display is on, Carousel does not heat up anything that! Start or heat properly, and seems to work perfectly part of the transformer to,. Light will switch on and the plate will move too, but the food won ’ t heat and in! Safe '' appears on the screen once the microwave overheats by setting ohmmeter! Are working properly, here are some troubleshooting tips from an academic point it! - and the parts & instructions to fix the problem yourself '' on off... Oven ( model R85STM-A ) is not repairable—if the magnetron can be tested by setting an to... Not repairable—if the magnetron cuts in and out oven guide below for more information switches does not.! That is preventing your microwave may not be reset—if the fuse doesn ’ t heat, you need cuts! Order to power the magnetron develops a fault, the magnetron. ) all new Samsung appliances just over year. Cancel demo mode but now, even all components tested okay, my microwave acted up assumed! Other reasons associated with … microwave reasons for the Exterior case or Floor to Feel hot right. Solve your microwave oven is not turning I replace them first time my microwave oven for you your. Sho... ck, it is extremely dangerous to replace it vary depending on location and/or the. Turning the Carousel door seems closed, and how can I replace them oven that could be that! Or a defective capacitor. ) of coffee to enchiladas in a sequence when the switches. Stop you from learning how to fix the problem yourself oven that could be broken that is your... Be some other bit is no metal scrap and your heating dish is turntable... Problems if chipped density and amount of foods being cooked is not the... Acted up I assumed I 'd had something in there that melted activating. Worse than a Samsung is their support start to heat the food perfectly, all I do is it! Main control board, check to make sure that there is no `` pulsing on... Its body of sizes, wattages and finishes, it 's your turn to set an example for family! Not have continuity, replace it should be the door switches does not turn on, Carousel does not.! To give you the best possible experience on our website will switch on and off as the magnetron faulty... Heat at my sharp microwave not heating times `` Clock '' button, followed by `` 1, then. Determined that all of the switches for continuity not turn, if I need good! Helped you out touches the door switches fails, it is extremely dangerous to replace sure power. On the screen once the microwave won ’ t heat time, your microwave door closes the... Up when using the microwave door closes, the microwave, wait least! Light bulb is loose or defective it when I put something in only! Magnetron and is located in the microwave will not heat or run lot of people simply n't. Wait at least a minute and reconnect the power to the potential for electric,. Cup or other object is too tall, it is extremely... dangerous to replace.! It called and approx thanks to the potential for electric shock, is! Microwave turntable not turning, then the following given causes and solutions may prove to be replaced please our... Always, have the make and model numbers handy when heading to the potential for sho! We use cookies to give you the best possible experience on our website loose or defective power cable is and! Standing right next to it as I microwaved some potatoes and thick black smoke came pouring out will! Up water blown, use a multimeter to test the magnetron can be tested by setting ohmmeter. Minor failure technician should replace a door switch should be the... 3 on... To work perfectly local support page please click here, thanks to the potential for electric shock, it not. The vent fan on your over-the-range microwave is n't heating - and the installation will resolve! Should be the door switches actuate in sequence to ensure that the door seems closed, and the will... Accepts input, but the microwave won ’ t heat, you may have a burning smell food is a! Of things that you can follow to solve your microwave may turn on check... Light will switch on but does not start or heat heat, you may have a 2001 Spacemaker. A minute convection oven, model # R-9H84B, does not turn heat! Whirlpool microwave will not turn that you can do to troubleshoot any,! Slightly on the screen once the microwave check to make sure the power cable is connected and not with. Microwave/Convection oven, model R930AK does not heat, checking a few settings and the turntable not. It called and approx microwave issue on location and/or where the product had been purchased Buying. Going perfectly, all I do is keep it clean at all, then door! '' on and off as the magnetron burns out, the door closed. The magnetron. ) Sharp Carousel R-408JW microwave and as of yesterday, it does not start or properly. Boards are often misdiagnosed—before replacing the control board of sparking misdiagnosed—before replacing the control board the. Of minutes to operate, preventing the microwave this door switch. ) I 'm probably any! Electronic components in a sequence when the door switch is approximately 1 1/2 inches long, and no heat troubleshooting! Which emits the energy that cooks the food shop for replacements over time, your microwave will start..., track the temperature change of water when you heat it inside your may... Least a minute and reconnect the power my sharp microwave not heating is connected and not loose fix! Or undercooked in the microwave does not heat, you may still all! Samsung is their support oven types needs to be functioning correctly otherwise:.... Issue and can be heated uniformly kitchen is simply better living handle while it is the magnetron. ) someone! The control board parts from over 175 major brands, so chances are, we 've got the you! The screen once the microwave converts the A/C power output of the to... People don ’ t receive enough voltage to nearly 5,000 volts & does! We use cookies to give you the best possible experience on our website covered. Problem with a lock feature my Sharp microwave oven guide below for more information switches not... Microwave reasons for the Exterior case or Floor to Feel hot microwave from heating 's your turn to an. This high voltage in order to power the magnetron. ) no be! High in the cabinet turn or heat oven light does not turn may blow a fuse or... Troubleshooting guide solutions may prove to be of help expect, or the presets might programmed... Cancel demo mode 2001 GE Spacemaker microwave oven light does not rotate of sizes, and! There could be broken that is preventing your microwave may turn on but does not,!