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Microwave trips the circuit breaker - LG LMV1630ST Microwave Oven

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muttandjeff
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SOURCE: LG LRM2060ST trips circuit breaker sometimes

needs to have circuit of its own rated @ 20 amps powered by # 12-2-wg wire , also very good idea to plug into a good surge protector to protect its control board, as any computer the boards are very susceptible to spike voltage caused by lightning and power problems , as to how it worked before , breakers vary a little in the amount of current it takes to trip them with age , the number of time they have to be reset and heat they have been subjected to over a period of time so it is not unusual for say one 20 amp breaker to trip @ 16 and another @19 for example also the length of wire between the breaker and the appliance can effect the trip range

Posted on Jan 13, 2009

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SOURCE: lg microwave oven trips circuit breaker

The magnetron probably has a partial short pulling more current than normal as it runs, the other two items that give trouble is the high voltage diode, "sometimes cracks" to the high voltage capacitor, "usually shorts"

Posted on Mar 30, 2012

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1 Answer

Trip Circuit Breaker


The circuit breakers may both be functioning properly. What might be happening is that both circuits have other current drawing appliances on them. The circuit breakers react to the sum of all of the currents drawn by all of the devices on that circuit. So, if you have a 15 amp microwave and an 8 amp refrigerator on the same circuit, you would overload a 20 amp circuit by 3 amps.

Apr 14, 2014 | LG LMV1813ST Microwave Oven

1 Answer

Keeps tripping circuit breaker


There must be a fairly major issue with your microwave to trip a 20 amp breaker. I would recommend taking it to your local repair shop or replacing it.

Mar 19, 2014 | Oster OGB81101 1.1-Cubic Foot Microwave...

1 Answer

Breaker trips when using microwave. Electrician can't find electrical problem. Could it be the microwave itself?


Answered earlier, another tips is to disconnect the power to the board and see if the circuit breaker holds, if not check the main line circuit.

Jan 31, 2013 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Microwave keeps tripping circuit breaker


Chances are you have a shorted "monitor" interlock switch, or its mount is broken.

See this door switch help file.


You can find links to helpful exploded view diagrams and part ordering help here.



To give you more specific help, we would need the brand name and

full model number of your microwave.


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happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Aug 30, 2012 | Microwave Ovens

1 Answer

Lg microwave oven trips circuit breaker


The magnetron probably has a partial short pulling more current than normal as it runs, the other two items that give trouble is the high voltage diode, "sometimes cracks" to the high voltage capacitor, "usually shorts"

Mar 29, 2012 | LG Microwave Ovens

1 Answer

Blowing main breaker


I have a hard time believing that the home's main breaker is tripping instead of the branch circuit breaker that feeds the microwave. I suspect it is really just a difference in terms. You should disconnect it and try using in another outlet - preferably one on a different circuit if possible. If the breaker continues to trip; this appliance should be disconnected and either be discarded, repaired or replaced before using again.

If the microwave works as expected (on a different circuit), it may indicate the original circuit is overloaded. Microwave overs are supposed to be installed on a dedicated circuit. This means only one outlet is on the circuit - no other loads (lights, appliances, etc.) are permitted on this circuit. A microwave typically requires 10 Amps or more when on "high" and will require a significant portion of the power supplied by a 15 or 20 amp circuit breaker. There is little unused to power much of anything else. If other appliances go out when the microwave trips the circuit breaker, you should contact an electrician to have a dedicated outlet installed for the microwave.

I hope this helps!

Sep 23, 2010 | Maytag Microwave Ovens

1 Answer

My microwave oven keeps tripping the circuit breaker.i replaced the outlet that it plugs into but it still trips it. is there an internal fuse in the oven that may be bad?


If a fuse inside had blown, that would definitely reduce the current flow rather than trip the breaker.
I have replaced several breakers over the years; they no longer last forever.
Try your Amana on a different circuit, not in the kitchen; if that other circuit likes the oven, the breaker is bad. If the alternate circuit breaker also trips, then you have not a blown fuse in the Amana but rather a shorted component inside and repairing the oven will likely cost about the same as replacing it.

Nov 22, 2009 | Amana Radarange Microwave Oven

2 Answers

Microwave / Frigidare PLMV


Chek the high voltage capacitor and the diode . If one of them are short there is a chance for tripping the breaker

May 25, 2009 | Frigidaire PLMV168 Microwave Oven

2 Answers

The past Few days the microwave would trip the breaker. today I went to use it and it worked for 30 seconds when I checked what I was heating and turned it bakc on and it would not work


Microwaves that are either built in, a part of the oven, or over the range are on a dedicated circuit by law. This means nothing else could have tripped that breaker but the microwave.
If it has a problem severe enough to trip a 20 amp breaker several times, it is only getting worse each time you reset the breaker and turn it on.
There is a possible chance of fire. I recommend you turn the circuit breaker off and replace the microwave. Is it a plug in, or over the range type?

May 18, 2009 | Microwave Ovens

1 Answer

Tripping of circuit breaker


Check what other appliances are on your circuit. What goes off when the breaker is tripped. You may need to relocate the microwave to a different circuit. Try to stay away from the refrigerator or AC circuits.

Nov 03, 2007 | GE JVM1440 Microwave Oven

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