Only pops the breaker when I push start button. Microwave pops curcit breaker when start button is pushed. If I open the door on the microwave it blows the main fuse in the microwave and trips the microwave breaker in the house electric panel. I can turn the light on, I can start the exhaust fan but when I run a cycle the microwave shuts off and trips the breaker. August 1st, 2012. Microwave Oven that is Tripping a … Tried to use it this morning and it tripped circuit breaker again as soon as you push "start". Anybody have any idea what could be causing this? Microwave pops curcit breaker when start button is pushed. If this occurs only with the microwave and then when the microwave is cooking then there is a problem in the operating circuit of either the turntable motor, internal fan or the magnetron circuit as these components are in use when cooking and you have checked that all the other circuits that can be in operation without the microwave … If the breaker does not trip while testing on a higher amp circuit, then you know the microwave is not faulty and a dedicated circuit is needed in your kitchen for the microwave. It is on a dedicated line. Ge microwave tripping breaker when door is opened. Thanks for the suggestion but we have ours wired to it’s own breaker. Anytime I use the Microwave on this circuit, it triggers the breaker's ARC Fault. My microwave oven trips the breaker when it cycles. ©1999 - 2021 AppliancePartsPros.com®. There's a short in either the magnetron, high voltage capacitor, high voltage diode feeding the capacitor & magnetron, or, because this is a Panasonic inverter oven, the inverter. The breaker does not seem to be the problem: I've moved the microwave to a different circuit and had the same results. Also because a higher value capacitor will increase the voltage, it could make the magnetron burn out. All electrical work will be done by an electrician. Use a screwdriver with a plastic handle -- wrapping electrical tape around a metal or wooden handle is not enough. These will be the most likely cause that would cause the microwave to pop the breaker. If the microwave trips that breaker, then you know the microwave is at fault. It would trip in the middle of cooking after a random time. Tried it on different dedicated line and still breaker pops. It Has steadily gotten worse in last month. There is little you can do to diagnose it unless you have a volt/ohm meter. This electrical wiring question came from Kathy, in Virginia. Your microwave may be tripping the power due to an issue with its electricity supply. If it doesn’t, call an … Swapped out the AFCI breaker for a standard 20 amp breaker, and haven't had a problem in 6 months. Press J to jump to the feed. First, test to see if the problem is related to the way the microwave is functioning. Can not use at all now. Whether or not the microwave has a dedicated circuit, the microwave may be tripping the breaker because there’s something wrong the the microwave itself that’s causing it to pull too much electrical juice. ANSWER Colin, The following steps are what I di… Try resetting the GFCI outlet. Hello everyone, I have a Panasonic microwave with a built in exhaust fan from around 2011. GE Microwave trips breaker seconds after start is pressed. If your microwave is plugged into a GFCI breaker outlet and it keeps tripping, the outlet itself may be at fault. The inverter board has wiring with what seems to be heat damage (like dried-out looking insulation on wires, tiny burned spots, etc. If throw it away, the world will have one more trash and I will have to spend some more money to bring back a new one. Cause #1: The microwave is malfunctioning. I decided to open the microwave oven to see if I can save it. There is a problem with the outlet. I have moved the oven to Sp> another outlet and it doesn't trip other breakers. Clock, light, timer set work. Also counts down but doesn't heat. The door switches appear to be okay, tested with a multimeter to confirm. I don't remember what the resistance should be, but I don't think this is your problem because the circuit breaker keeps tripping. This would be the best-case scenario for sure. Receive discounts, usage tips, and recall notices. I have a brand new Bosch Microwave (model: hmd8451uc) installed as the only device on the entire circuit. Plug another appliance into the outlet to check if it is working. Press question mark to learn the rest of the keyboard shortcuts. Also measure between the 2 leads to check the resistance of the cathode heater. For GE Switch Micro (Part Number: AP5790848). Start Right Here Find appliance parts, lawn & garden equipment parts, heating & cooling parts and more from the top brands in the industry here. Only pops the breaker when I push start button. GE Microwave trips breaker seconds after start is pressed. If for some reason there's no inverter, then I seriously doubt that any big transformer is bad because they tend to be extremely reliable. Test to see if the microwave is malfunctioning. It could be a simple issue with the microwave having a blown fuse or it may be time to get a new microwave oven . 8/15/2013. The proper way is to connect the terminals together for a few minutes with an approx. It is over 6 ft from the outlet to the faucet. I think that indicates a short, even if the wires look good. Clock, light, timer set work. Or you can use a digital multimeter if you apply 9V - 20V DC to the diode through a 100K ohm resistor and measure the voltage across the diode. Also, installing an outlet with a lower amperage rating than the circuit breaker can interrupt the breaker's tripping mechanism when the maximum rated current is exceeded. If the circuit breaker related to that area trips… I have a new Panasonic Inverter microwave; my old microwave exhibited this same problem. If the microwave is on a dedicated circuit as is tripping the breaker, it could be a faulty circuit breaker, outlet, or microwave oven. A component could have failed, or some wire in the transformer or magnetron... New comments cannot be posted and votes cannot be cast, More posts from the appliancerepair community. Share it! This isn't quite proper, but you short the 2 terminals of the big capacitor together with the screwdriver shaft to discharge it. How to Repair a Microwave Oven: My microwave oven stopped working. Start Pad was not pressed after programming. An electrical circuit breaker is a switching device that can be operated automatically or manually for controlling and protecting the electrical power system, and the electrical devices connected to it. It Has steadily gotten worse in last month. Tried it on different dedicated line and still breaker pops. It is on a dedicated line. I can't imagine closing the door would draw a lot Sp> of current! The repairman said, that LG told him, that because the stove clock is on the same line, it could cause interference that'd trip the breaker. You can check everything but the inverter with a multimeter, but first unplug the AC power for 30 minutes, then discharge the big capacitor. If the switches check ok then look for any damaged wiring. This sub is designed and dedicated to remaining Old Reddit style. Breaker (Murray MP-GAT2 20AMP). The door is not closed completely. Its 44 linear inches from the microwave to the sink. We're open and continuing to ship packages On Time! The magnetron also has a permanent magnet in the shape of a donut, and if it's cracked or crumbled the magnetron needs replacement. Microwave trips the breaker instantly after starting the cycle. No other appliance in this home has caused any trips. REASONS WHY YOUR MICROWAVE IS TRIPPING YOUR BREAKER When an appliance such as a microwave oven repeatedly trips the circuit breaker, it’s overloading the electrical circuit, which is rated to handle a finite number of amps. Faulty Circuit Outlet. And if it blows the fuse for your kitchen, there also is a likely cause for that. Eaton BR breakers, I was using a 20 amp AFCI breaker with a Sharp R-402FW microwave (don't know the age, came with the house). You should schedule service and let a technician diagnose and repair the microwave. I have a whirlpool microwave GH5184XPB that trips the circuit breaker (at the house panel, not the internal fuse) when I start the microwave element. Measure between each lead and the metal case of the magnetron. Did it start tripping the breaker intermittently and get worse. Microwave dead, no power? The voltage should change when you reverse the polarity of the hook-up. Once we set the panel again it works fine but randomly it trips again. Don't throw out that microwave just yet! I don't think this will be helpful to your situation, but our microwave is wired to the same circuit as our dishwasher, some kitchen outlets, and family room outlets. If you have a device that regularly trips your breaker, first try using it on a different circuit. Unit is only abought 15 months old, We are Safe, Secure, Dependable and Trusted. Microwaves have a life expectancy of nine, according to the National Association of Home Builders. 100,000 ohm resistor rated for at least 10-20 watts, remove the resistor, and then short the terminals together with a screwdriver shaft. The high voltage diode will seem like it doesn't conduct in either polarity if you try to test it with a digital multimeter because it won't apply enough voltage. Dave’s Reply: Thanks for your electrical wiring question Kathy. Microwave is tripping breaker when door open button is pushed. The clock can still … read more It is plugged into a dedicated circuit on the house wiring. Sp> on the circuit. The microwave cooks fine, but sometimes just closing Sp> the door on the microwave trips the breaker! 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 other breaker trips, you know the device is incompatible. Breakers involved are Siemens QAF2 CAFCI. Oven will not start cooking. An old-style analog multimeter that uses a 9V battery will work, if you set it to one of the high ohms scales. Close the oven door securely. Reset breaker, clock, light and fan vent works but place bowl of water inside, press … read more When START is pressed, however, the microwave runs for half a second before the circuit breaker trips. We recommend taking a look at the socket to see whether it might have melted. ANy ideas what Sp> might be happeing? Reset circuit breaker or replace fuse. Circuit breaker or fuse is tripped or blown. I have a Panasonic microwave with a built in exhaust fan from around 2011. The breaker is 20 amp, and the microwave is rated at 14 amps. You will want to check the door switches on the unit to make sure that the switches are good. GE Profile 2160, installed in wall. If you can't unplug your microwave, the socket and plug may have fused together, in which case you'll need to turn of the electricity supply and try applying a little force to get them to come apart. Plug the microwave into an area where the breaker is set for a higher amp rating (like a garage), then turn on the microwave and see what happens. ), so I suspect it is the problem. Answered by AppliancePartsPros.com   |   Wednesday, January 17, 2018. Would like to know if fixable. All rights reserved. I looked for a shirt but all the wiring appears good as well. **If you can see this please switch to Old Reddit**. The lights and fans work fine. If your microwave oven blows a fuse, there are a couple possible causes. I can turn the light on, I can start the exhaust fan but when I run a cycle the microwave shuts off and trips the breaker. Otherwise, the breaker can trip prematurely. The diode is actually several diodes in series, so more voltage is needed to turn them on. Report This by Manage My Life. Here's an authoritative source about microwave oven repair:https://www.repairfaq.org/sam/micfaq.htm. Shorted magnetron, transformer, or maybe a bad diode off the capacitor. Turn the microwave on and see what happens. When the microwave is fuller, it works fine. Both breakers are about 2 years old now. Get more answers from the people in your networks. So we can't run the dishwasher or toaster oven with the microwave or the breaker will flip. Can not use at all now. Tags . The magnetron may be shorted to case because one of the feed-through capacitors has failed. The circuit breaker trips when too much electricity flows through it or when it cannot handle the excess current load. If the breaker also trips when using the kettle, perhaps the problem is the breaker or the breaker circuit and not the microwave. Some manufacturers also recommend installing a separate circuit for built-in microwave wall units to avoid repeated tripping. Is it a new microwave, and has done this since you first brought it home, or did you have the microwave for a while, and it just started tripping the breaker? Many things can cause a microwave to trip breakers. Press Start Pad. 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. Give us a call … Call the experts at Hoffman Electrical & A/C for a free estimate, or if you’re uncertain whether or not your microwave oven has its own dedicated circuit. From time to time we notice the microwave trips the electric panel. Unit is only abought 15 months old When a breaker trips, its switch automatically flips to the “OFF” position, and it must be manually turned back on in order for electricity to flow through the circuit again. Once the microwave exceeds that number the breaker is tripped and the electrical flow is shut off. If the microwave oven doesn’t trip the breaker, you’ll need to have a dedicated circuit installed to prevent further issues. Plug the microwave in an area where the breaker is usually set for a higher amp/current rating, like your garage. If you replace the capacitor, get the same value in microfarads (uF) because it sets the output power, and a different value could mess up the calibrations of all the auto cooking modes. I replaced the main fuse and power came back on the microwave and then I opened the microwave door and it tripped the fuses again. If the appliance trips the breaker, the problem lies with the microwave, and you’ll need to either repair or replace it.