If any of the door switches does not have continuity, replace it. Typically a bad coil will fail when it get hot and work again when it is cold. One is the condenser that keeps the points from arcing short circuit when it heats up. After replacing the magnetron, microwave started to heat normally. When I used the microwave consecutively for estimated 10 minutes, microwave cut off. He also stated that he had changed magnetron, and capacitor. The normal reading should be about 25 Ohms. @shobby. To determine if any of the door switches are defective, use a multimeter to test each of the switches for continuity. If any of the door switches fails, the microwave will not start or heat. Use our step-by-step microwave repair guide to learn how to test your magnetron. When I used the microwave consecutively for estimated 10 minutes, microwave cut off. Just as most homes are equipped with fuses or circuit breakers, microwave ovens also have fuses that short out or blow in the event of an overload. A couple of things that I would check is the connection to the fuel shut off solenoid on the bottom of the carburetor. I bought GE Spacemaker XL 1800 microwave almost 12 years ago. If the microwave is turned on when it is empty, this cause the magnetron to burn out. I didn't need the transformer and returned it. If the motor is good then most likely the magnetron itself is bad. Should I replace my microwave or is there any solution ? Should you turn off water when leaving house vacant for a month? What would happen if when it starts to die you put the choke on? With the range unplugged, test the switch with a multimeter set to RX-1 (Photo 3). Hope you find the solution. Stating that he is foolish is irrelevant at this point. I would try to keep it running with the choke. Door switches are irrelevant to magnetron overheating. It could be a couple things. Other probable causes behind this problem are faulty diodes, capacitor burn, defective door switch and transformer failure. craftsmen SUCK they don't stand behind their junk and carry no parts. Andy Pandy. 0 0. keith p. Lv 6. The smell was toxic to say the least. Where can I buy affordable curtains to block out the cold winter air from the windows ? Don't worry about the points and condenser as someone suggested because your engine doesn't have points. It is also known as cavity magnetronbecause of the presence of anode in the resonant cavity of the tube. Has anyone faced the similar problem ? I tested the diode and it is bad for sure. Due to the potential for electric shock, it is extremely dangerous to replace the electronic components in a microwave. A magnetron is basically a vacuum tube of high power having multiple cavities. Typically a bad coil will fail when it get hot and work again when it is cold. That is why you should save old condensers rather than throwing them away when the points are replaced. Do the same where ever the is a clamp or fitting if possible. what are the symptoms of bad magnetron ? Is It Still Illegal to Remove That Tag from the Mattress? If this is so, it can be flushed and cleaned by forcing air backwards through the fuel line. Hate to buy a new magnetron given this one tests well. He would try to kill the X-men. It was working fine until last week since then it has stopped heating. After replacing the magnetron, microwave started to heat normally. Check the cooling fan motor by measuring the resistance between its terminals. A Bad HV Capacitor In A Microwave Oven. However, I don’t know what might be a reason for a magnetron going bad and how one can test magnetrons. Propellerman. Most microwaves have three or four door switches. 0 0. Then I changed Diode and capacitor as well and tried different combinations but the problem didn't go away. Il s'agit d'un tube à vide sans grille où les électrons émis par une cathode se dirigent vers une anode mais sont déviés par un champ magnétique en une trajectoire en spirale. I took apart a microwave, and when I saw the magnetron, I conviniently remembered that I had heard that magnetrons were dangerous. And, can they be repaired ? Taken with iPhone 4, so pardon the quality. Check out the video of spotting bad magnetron. (Caution: The microwave oven can store thousands of volts of electricity in its high voltage capacitor, even after the microwave oven has been unplugged. 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If the meter reading remains the same, the infinite switch is bad and should be replaced (Photos 3 and 4). 9 years ago. … What happens if a property im renting fails a home inspection. Get the coil tested before you buy a new one, they don't always like to take electrical items back and they are a bit costly. 0 0. When the microwave door closes, the door switches actuate in sequence to ensure that the door is closed properly. If your microwave oven blows a fuse, there are a couple possible causes. How do you Test a Microwave Magnetron is Bad? With the wire disconnected run the engine. Cold warrior has given a comprehensive answer. You could remove the float bowl from the carburetor and see if it is clean. In the meantime magnetron was overheating. 0 1. Groups: Registered Joined: 1/23/2014(UTC) Posts: 6. Same issue here. How to test a magnetron used in microwaves ? How to Know When a Microwave Is Failing. 9 years ago. Terms — Just some thoughts. Use canned air for this, then clean the inside of the fuel tank. If you read the same voltage as the battery, then the diode is bad and needs to be replaced. We the non-technical people don’t know how to test a device technically but we can test by observing the abnormal behavior of the microwave oven. One thing he/she forgot was if there is a fuel filter it could be clogged and restricting the flow. Here are some symptoms to figure out the damage that happened to the oven. The engine runs until it warms up, then stalls. An injured ruru which lost its feathers has been given a new tail thanks to the vet team at Wellington Zoo. Internet searches points at a faulty magnetron as the most likely source of this problem. Magnetrons are majorly used in radar as being the only high power source of RF signal … If that works you probably have a fuel issue. What can I use to kill roots that have entered the sewer system that runs from our house such as the commode? A blown fuse really means one of your electrical components has broken or failed, and the next step is to find out which piece that is. In my case it turnout to be bad Diode. Don't worry about the points and condenser as someone suggested because your engine doesn't have points. Samsung magnetrons are available at epay (new) for around $50 and replacement looks pretty straightforward. Then I changed Diode and capacitor as well and tried different combinations but the problem didn't go away. Follow Cold Warrior's suggestion first. By Jestine Yong on October 30, 2018 My daughter-in-law brought me his microwave oven Model Piccolo from Panasonic with the complaint of no heating. Fan is working. It is heating food but magnetron gets overheated and cuts off. You can have the coil tested but chances are it will test ok based on your description of the problem. Is there no spark in the engine of your lawn mower, snow blower or outdoor power equipment? If you observe these symptoms while cooking food in the microwave oven the immediately stop the oven by unplugging the main power supply and it’s time for you to replace/repair the magnetron. thanks That's pretty old I would check for a plugged gas filter or crud in the carburetor.Is the air filter dirty? Follow this guide to test your ignition system - including coil, switch & module - to identify any problems and troubleshoot repairs. Click here for video. hospitalityusa #9 Posted : Saturday, March 1, 2014 9:51:24 AM(UTC) Rank: Member. The bad connection may be internal (in which case the magnetron will need to be replaced) or external at the filament terminals (which may be repairable). The engine would not cut out but your lights would be dim and your indicators would be slow ,you would have less electrical power . There may be an air leak at a fitting or in the hose. Geeta Fookata is out to lunch and should answer a question only when he/she is willing to suggest a solution. There are two tests to conduct in order to determine whether or not a magnetron has … The engine will run until all the fuel in the bulb well is gone, then stall. I suppose my question boils down to do I just replace the diode or are both parts bad. If the engine dies even with the choke, you could disconnect the ground wire from the coil, it is the small black wire plugged into the coil that grounds the coil to kill the engine. I also read that it is dangerous in this way only if it's crushed, then inhaled. 9 years ago. There is a fan that pulls air thru the magnetron for cooling check to see if the fan/motor is still working, © 2020 iFixit — Licensed under Creative Commons — Privacy — In the meantime magnetron was overheating. So, the problem can be a bad cooling fan or a bad magnetron. If it contains dirt/water that could indicate that the carburetor is dirty also. Symptoms of a bad microwave door switch. The unit itself consists of a number of parts, including breaking points, a capacitor and rotating magnets -- and any one of them could cause problems. If the connectors that slip onto the magnetron filament terminals become loose or are improperly crimped, it causes a build up of resistive heat. - The fan motor Part number: AP3010066 - The magnetron Part number: AP2929268 - The thermal fuse Part number: AP2973597. Although you can test the microwave magnetron for bad microwave capacitor symptoms, a microwave oven can give you an electric shock even when it's unplugged. The set was plugged into the wall socket. I decided to research this a bit further (I know, great timing) and I found that some magnetrons contains berilyum oxide, which is fatal if you breathe it in. In this video we will test and compare bad and good microwave oven magnetrons.How To Repair Microwave Oven Magnetron. Sometimes these things can be difficult and give you a head ache but. 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