microwave blowing breaker

It's plugged into a GFCI receptacle that is the only receptacle on a 15 Amp breaker. Proudly Serving Hillsborough, Pinellas, Pasco, Sarasota, & Manatee Counties. 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. This investment for your peace of mind is only $159/Year, © Copyright 2010-2021 Hoffman Electrical & Air Conditioning. I opened it up, and the HV transformer was literally fried. Note, the one to its right and the pair below are also labeled "Internal Common Trip". The circuit breaker is not there to protect your microwave, it is there to protect the wires. Since then these technological marvels have come a long way, with more features, compact sizing, and greater cooking power than ever before. The turntable motor enables your microwave to cook food uniformly. The other night I went to heat something up and as soon as I hit start it blew the circuit breaker. Single are usually for 110V and double are for 220V. I reset the circuit breaker, the fan, light, and clock all work fine. This means spots like your fridge, laundry machines, large electric furnaces, electric ranges, and microwaves. To verify the result, also check to see if there is any current leaking anywhere. Otherwise, the breaker can trip prematurely. You should not obtain any values. Do I need a 20 Amp breaker for the microwave? If your microwave oven blows a fuse, there are a couple possible causes. By having more than one major appliance on a circuit, you run the risk of overloading the circuit and tripping the breaker. I have moved the oven to another outlet and it doesn't trip other breakers. Interference suppressors can sometimes blow, causing them to short-circuit and trip the power or blow the fuses. Plug the microwave back in and you should be good to go. To access the door switch, you will have to dismantle the cabinet but only after unplugging the appliance. Our old microwave started tripping the breaker every 3rd or 4th time we would use it. if you don't obtain a value, the capacitor is defective. If you do not obtain any values, this confirms there is no electrical leak. | All Rights Reserved. There are two terminals which must be … If the breaker trips off again, unplug the microwave and contact service. It will start, and magnetron kicks in, but it browns out and blows the breaker. It's rated at 15 amps and it's plugged into a 20 amp dedicated circuit. Microwave ovens revolutionized kitchens across America when they came on the market in the 1970s. It has started to blow the circuit breaker quite often. If it has an electrical leak, it will trip the circuit breaker. If the problem continues, call an electrician. Before checking and testing this component, carefully read the safety instructions provided at the beginning of this article. Issue was the fuse kept blowing every time the door was opened while the microwave was operating. You can see it circled here in this unfortunately grainy picture. And it tripped that circuit breaker too. A blown fuse is one of the most common problems a microwave can have, but that’s just the indication that something has gone wrong. There is a risk of getting electrocuted. Many things can cause a microwave to trip breakers. Replace the magnetron if your tests prove it to be defective. You can check the condition of this component, but ensure you pay strict attention to the safety instructions when doing so. The door safety latch mechanism on your microwave contains several small switches. I took an extension cord and plugged the microwave into another kitchen outlet and ran it. The following steps are what I di… Secure payment Credit Card, PayPal and bankwire, Fast delivery International home delivery, Money-back guarantee Free returns : 30 days to change your mind. Clock, - Answered by a verified Appliance Technician Every time we use our microwave it blows the fuse after about 30 to 45 seconds max. If you replace the breaker with a higher rated one, you might just be going over the rating … When you first open the microwave up, make sure you short circuit the capacitor using a pair of electrically insulated pliers (with the appliance unplugged from the mains of course). The interference suppressor is needed to protect the appliance from possible electronic malfunctions. You should either have the microwave fixed, or replace it. Over 16 years of experience, from licensed electricians. This makes the problem WORSE, since the microwave is starting every time it cycles. It does not constitute professional advice.All information is subject to change at any time without notice. In new houses, refrigerator and freezer often have a dedicated outlet. About 2 years later, it stopped working again [tripped the breaker and blew fuse]. This increased power consumption could be because the oven has a higher power consumption rate, or it has a malfunction that’s causing the excessive electrical current consumption. The clock, timer, fans, lights, and all other functions work. I can't imagine I have two defective microwaves. One of the possible reasons for microwave stopped working and no power could be an issue with the door switch. An Overloaded Circuit-A Faulty Appliance- I keep resetting the breaker. 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. If the value you obtain is around zero, the magnetron is working correctly and is not the source of the fault. No, you need to have the microwave repaired or replaced. If it's defective, the appliance will make a loud noise when operating and end up blowing its fuse or even tripping your electricity. If you are in the kitchen and using the coffee maker, the microwave, and toaster all at once, it will probably flip the 110V breaker off. Here, we're going to help you work out where this problem is coming from so you can resolve it. Microwave Keeps Blowing My Fuse or Tripping My Circuit. Blowing a fuse or tripping a circuit breaker is a relatively common issue, especially if you like to vacuum, listen to music and microwave popcorn at the same time. Otherwise, you run the risk of getting electrocuted. I have a six year old Sharp R-510 AK microwave, rated at 1000 watts output, 1500 watts or 13 amps input. In simpler terms, this means the microwave has its own circuit breaker. Why Does My Microwave Keep Blowing Fuses? Fred's Appliance December 22, 2016 Service Leave a Comment. Two days ago my microwave oven suddenly started tripping the circuit breaker. This could also cause the microwave's fuse to blow or trip your circuit. I do not know how else to describe the issue so I hope... - Kenmore Microwave We have a Sharp Carousel R426. Regardless of whether your microwave oven is on a dedicated circuit, it’s a good idea to move on to the next step, to ensure the appliance is operating correctly. So, I figured it was the appliance and bought a new microwave. You can get the microwave checked for earth leakage, which is a good idea if it is fairly old anyway. If you do, this component will need to be replaced. Some manufacturers also recommend installing a separate circuit for built-in microwave wall units to avoid repeated tripping. I have an OTR microwave LG model LMV1920DW that was blowing the breaker on start up. Microwave Fuse Ceramic Fuse Cartridge Fuse 20 Amp 250V Slow-Blow Compatible and Universal Replace for GE WB27X10388 and Whirlpool Kenmore Other Microwave 5 PCS Divine Lighting 5 Qty. We therefore recommend you leave the appliance to discharge for at least one day before taking it apart. If Microwave is 1,200 watts, it needs a dedicated 20 amp circuit breaker, with nothing else on it, toaster s and toaster oven also should be on separate cicuits from other home appliances. If the transformer is defective, the appliance will make a lot of noise and could trip the circuit or blow a fuse. To do this, place one of the multimeter's probes on one of the capacitor's terminals and the other probe on the appliance's metal frame/casing. Before testing this component, check your multimeter is definitely set to "Ohms Ω" and make sure you've discharged the capacitor. The door switches appear to be okay, tested with a multimeter to confirm. Breakers and labeling in breaker box. CHas your microwave recently begun tripping the power in your house and you don't understand why? For some reason this seems to be an issue more common on newer models. If you overload a circuit, your system will cut off the electrical flow to prevent circuit damage or a fire. When START is pressed, however, the microwave runs for half a second before the circuit breaker trips. 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. For example, if your microwave keeps tripping the circuit breaker every time you turn it on, it could be because it’s plugged into the same circuit as one or more large appliances and the circuit simply doesn’t have the extra amperage a microwave needs. The microwave is a GE brand, model JVM1631WB004. You can also check whether the capacitor has an electrical leak or not. One of the most common problems with a microwave is tripping a breaker. The house circuit breaker tripped twice. Never test and use a multimeter on the appliance with it still plugged into the mains. If you’re adventurous enough to open up your microwave oven and replace a blown fuse, you could be in for a bigger challenge. Unplug the microwave then clean that button with a Qtip and alcohol and press the button in and out a few times to free it up again. A faulty door switch which is also often called as an interlock switch is the part which signals the other parts to turn on when the door gets closed and to stop when it is opened. AFCI breakers, in addition to tripping due to overloads, short circuits, and ground-faults, also sense the power fluctuations that occur when sparking ("arcing") occurs between contact points in a wire connection. The highly trained, certified electricians at Hoffman Electrical & A/C have been solving issues with kitchen wiring and overloaded circuitry since 1989. We will focus on some of the reasons. However, make sure you follow the safety instructions detailed above if you decide to do this. Once the breaker is reset, and the unit is tried again, the same thing happens. Follow these steps to restore power and get those appliances going again. If the microwave oven doesn’t trip the breaker, you’ll need to have a dedicated circuit installed to prevent further issues. You risk electrocuting yourself if you neglect to do this. about 2 years old. Too many items are plugged into the same circuit that the microwave oven is on, causing an overload. If any of the timer's electrical contacts are damaged, this could cause the circuit to trip or a fuse to blow. I have a six year old Sharp R-510 AK microwave, rated at 1000 watts output, 1500 watts or 13 amps input. In the past it only happened when I used the microwave oven and the toaster oven at the same time. Even when unplugged, the capacitor inside the microwave oven can still produce power electrical discharges. 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. By Vet300 - 3/7/2017 9:16:10 AM I have an OTR microwave LG model LMV1920DW that was blowing the breaker on start up. About a year ago it quit working, and after some investigation, I found the ceramic fuse - after replacing it, all was well for a while. And it tripped that circuit breaker too. Fridgidaire, Model FGMV175QFA. ANy ideas what might be happeing? Once the microwave exceeds that number the breaker is tripped and the electrical flow is shut off. In my instance, most of the time mine trips the breaker when in low, and not the first time it is started. Personally, I will consider replacing the breaker and see if that helps, since I don't have anything else in … It's possible that when you put your food in the microwave, liquid of some kind ran under the turntable and you then forgot to clean it up. The reasons are-6 Reasons Microwave Trips Breaker When Door Opens. Plug the unit into an alternate outlet, in an area of your home where the breaker has a higher amperage, such as in a garage or workshop, or into an outlet with a guaranteed dedicated circuit. Your microwave may be tripping the power due to an issue with its electricity supply. You can also test the circuit itself by plugging something else in … One end of it connects to the capacitor and the other to your microwave's ground. I have a Whirpool GH5184XP microwave / oven hood combo, that blows the circuit breaker only when the cooking function is started. Fuses blow because of a short circuit. If the circuit breaker in that area trips, it’s a sign that something is wrong with the microwave. If the circuit breaker in that area trips, it’s a sign that something is wrong with the microwave. ... (A microwave usually puts off about 12 amps and needs a dedicated circuit of about 20 amps.) With greater power comes greater power usage, but if your microwave is tripping the breaker in your home, it’s a sign that the appliance is overloading the electrical circuit. At this point I am clueless. Then the second microwave started blowing fuses, mostly it seemed when the door was opened while it was cooking although I can't be positive. I reset it, the clock & lights worked but if we started the microwave it immediately blew the breaker. Personally, I will consider replacing the breaker and see if that helps, since I … Why Does My Microwave Keep Blowing Fuses? This problem when it happens to you can be overwhelming! How to Repair a Microwave Oven: My microwave oven stopped working. Our microwave keeps tripping the breaker. What could be causing the microwave's 20 amp fast-blow fuse to break repeatedly, and trip the breaker? You should either have the microwave fixed, or replace it. A Microwave Can Pull Up To 12 AMPS – Use a Dedicated 20 AMP Circuit For The Microwave: If your microwave constantly trips the breaker, check to be sure the microwave has a its own dedicated circuit. The questions are, why, and what can be done to solve the problem? You can congratulate yourself on a job well done. WARNING We recommend adopting a very cautious and safety-conscious approach if you need to take your microwave apart at any point. This isn't conclusive; it could be that your Frigidaire microwave keeps tripping the breaker or a surge may have tripped both, but it's an essential preliminary step. April 6th, 2017, model - Answered by a verified Appliance Technician. If the breaker is an RCD and/or breaker combined (RBCD) it may be tripping due to an earth leakage. I spent 6 years in the Navy as an Aviation Electronics Technician and also taught electronics at a trade school for several years after getting out so I now my way around a switch and how to test them. You can check the motor using a multimeter in ohmmeter mode. It seems to happen as soon as I want to "nuc" something by pressing start. It worked fine for about a week but now it's tripping the breaker. ... First, let’s talk about the difference between a fuse and a circuit breaker. The clock, timer, fans, lights, and all other functions work. The magnetron sits inside the microwave's outer casing. You should schedule service and let a technician diagnose and repair the microwave. Circuits break down into two types: dedicated and general purpose. It worked fine for about a week but now it's tripping the breaker. Reset the breaker or replace the household fuse and try the microwave one more time. Due to this stacking, the HV diode cannot be checked with a multimeter. Something that we’re used to taking 5 minutes in the microwave becomes 30 minutes in the oven. If you get a continuity reading (a value is displayed), this means the motor is faulty. If a microwave or electric oven exceeds the amount of electrical current the circuit can handle, the breaker could trip. I have a Whirpool GH5184XP microwave / oven hood combo, that blows the circuit breaker only when the cooking function is started. the door on the microwave trips the breaker! In new houses, refrigerator and freezer often have a dedicated outlet. Permalink. I tried other outlets and they would also trip. There is little you can do to diagnose it unless you have a volt/ohm meter. The magnetron sits inside the microwave's outer casing. Microwave ovens produce powerful electrical discharges that can potentially be fatal. If the appliance trips the breaker, the problem lies with the microwave, and you’ll need to either repair or replace it. If it has an electrical leak, it will trip the circuit breaker. Our old microwave started tripping the breaker every 3rd or 4th time we would use it. Then locate the turntable motor, which will be underneath the appliance. Sharp microwave blowing circuit breaker (too old to reply) JW <> 2003-08-27 12:45:23 UTC. If you live in Hillsborough or Pinellas County, give us a call at (866) 238-3243, or contact us online for a free estimate. Bought a new microwave, but had the same problem on the FIRST day. The 3rd time it just tripped the breaker, then the 4th time days later the fuse and breaker both blew/tripped again. Never test these components without first disconnecting the appliance from the electricity supply and discharging the capacitor. Our microwave keeps tripping the breaker. You can also check whether the motor is leaking electricity or not by placing one of the multimeter's probes (still in ohmmeter mode) on the appliance's metal chassis and the other on one of the motor's terminals. Important: do not forget to follow the safety instructions provided at the beginning of this troubleshooting guide. If the breaker also trips when using the kettle, perhaps the problem is the breaker or the breaker circuit and not the microwave. I read somewhere that a high voltage capacitor could be the culprit but also read that usually the case when the microwave isn't working at ALL. 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. Make absolutely sure you carefully follow the safety instructions provided at the beginning of this troubleshooting guide. 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. My Ge microwave keeps popping the breaker every time I open or close the door. In my instance, most of the time mine trips the breaker when in low, and not the first time it is started. Is there something that could be wrong with this particular microwave? If you are qualified to do work in your breaker box (DO NOT IF Contact us ! It is powered by the electrical current supplied to the appliance and emits electromagnetic waves. When I moved into my house, the microwave was not working, and GE "repaired" it. Disconnect the connectors from the capacitor then place the tips of your multimeter's probes (in ohmmeter mode) on each of the capacitor's terminals. Carrying out repairs on a microwave oven requires a very careful and safety conscious approach. My Kenmore OTR microwave came with the house when we built it. This will require 12/2 NM wire with a ground. We recommend taking a look at the socket to see whether it might have melted. In order for this type of reaction to occur, there must be one of two issues at hand: Determining the exact cause of the problem involves a few simple steps: A dedicated circuit is one which serves only one appliance, helping to protect your home and electronics. A microwave oven needs its own 20 amp circuit, in order to prevent an overload. That is the purpose of the "crobar" relay you removed which results in a "fail-safe" condition to the user at the expense of blowing a fuse or tripping a breaker, or even damaging the microwave itself. When START is pressed, however, the microwave runs for half a second before the circuit breaker … 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. It will normally be fitted just after the point where the power lead enters. The microwave oven is defective and drawing an excessive amount of electricity. Should I replace the 15 amp breaker with of cold water for 2 minutes at 100% cooking power. I other words, it isn't dead, something is just causing a short but I can't tell what. Hiring the right company to perform electrical work in your home is the key to your satisfaction, and the safety of your home and family. Follow these steps to restore power and get those appliances going again. It has started to blow the circuit breaker quite often. We use cookies to give you the best possible experience on our website. The microwave oven needs a dedicated 20-amp, the 120/125-volt circuit to feed it. In the past it only happened when I used the microwave oven and the toaster oven at the same time. Does this indicate that it was indeed the breaker, or could the new breaker be hiding a potentially more dangerous issue? These tend to be labeled on your circuit breaker box. If all goes well, it will run fine with the new fuse. The high voltage transformer amplifies the electric current so that the magnetron can operate. If it has a dedicated circuit, the tripped breaker should be labeled with the word “microwave”—if not, it’s likely a shared circuit. If the button is gummed up with residue then the microwave will trip the circuit breaker. imported post I have a Kenmore built-in (over-the-stove) microwave oven, Model No. Once the microwave exceeds that number the breaker is tripped and the electrical flow is shut off. If all goes well, it will run fine with the new fuse. 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Blowing a fuse or tripping a circuit breaker is a relatively common issue, especially if you like to vacuum, listen to music and microwave popcorn at the same time. We also recommend wearing a pair of electrically insulated gloves to ensure you are able to work in complete safety. 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. To take the measurement, disconnect the magnetron's connectors and place the multimeter's probes on its terminals. Give us a call at (866) 238-3243, or contact us online. Sharp microwave blowing circuit breaker (too old to reply) JW <> 2003-08-27 12:45:23 UTC. SOS Accessoire cannot be held responsible for any accidents that may occur. Oven Trips Circuit Breaker If the electric setup in your house is tripping, an oven can certainly be one among the various reasons or just the sole reason. Microwave - Tripping Circuit Breaker. Although it's not uncommon to see microwave ovens plugged into standard appliance outlets, larger microwave ovens can draw as much as 1500 watts, and these need their own dedicated circuits. I decided to open the microwave oven to see if I can save it. about 2 years old. If you overload a circuit, your system will cut off the electrical flow to prevent circuit damage or a fire. Fridgidaire, Model FGMV175QFA. Clock, - Answered by a verified Appliance Technician If the HV diode is short-circuiting or leaking electricity, your appliance may make a loud noise and could end up blowing the fuse or tripping the circuit. Open up your microwave's outer casing and locate the door latch microswitches. Microwave oven will not operate: Check the following: Household fuse or circuit breaker - If a household fuse has blown or a circuit breaker has tripped, replace the fuse or reset the circuit breaker. Repeat the operation for each terminal. During the 1st year it quit heating and the magnetron had to be replaced (free under warranty). If possible. ... our microwave keeps blowing the house fuse every time we open the door. Call in an electrician if necessary. Important: do not forget to follow the safety instructions provided at the beginning of this troubleshooting guide. Disconnect all the electrical connectors and place the multimeter's two probes on the microswitches' terminals. 721.8935090 that is about 14 years old. Make absolutely sure you remember to follow the safety instructions provided at the beginning of this article. So, I figured it was the appliance and bought a new microwave. 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. One end of the transformer connects directly to the appliance's ground. If you take that switch out, beware that you can actually microwave yourself in the event the other relay welds together. 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. We reset the the fuse, set the time and then open the door and the fuse goes out again. If this happens, your microwave will not be able operate. Did it start tripping the breaker intermittently and get worse. The information on this website is for informational purposes only; it is deemed accurate but not guaranteed. If possible. Your microwave's timer will be either mechanical or electronic in design. Magnetron - Try to heat 1 cup (250 ml.) Permalink. If any of the door latch hooks is broken or any of the switches is faulty, the appliance will not operate. Now the microwave does not run at all. Replacing the HV diode is normally not difficult, and they are quite cheap to purchase. As I told you earlier, there might be many reasons for the microwave trips breaker while the door opens. If the circuit is drawing too much current, the wires heat up and cause a fire. Putting in a bigger fuse or breaker only dumps more current into that short circuit, causing a fire hazard. 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. I tried other outlets and they would also trip.

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