Question about Microwave Ovens

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Smoke coming from under oven

Upluging it trips breaker

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My advice would be to scrap the oven. Smoke is never a good sign, Even if the smoke is coming from a food scrap or cockroach trapped in the turntable motor, opening up a Microwave oven is extremely dangerous. The oven has high power capacitors inside which when charged, will deliver a dangerous and painful electric shock EVEN IF DISCONNECTED FROM THE WALL POWER POINT. These capacitors will hold their charge for days and they can be lethal. The power supply inside a microwave oven is also capable of supplying more then enough power to KILL !!!!
As the oven is tripping the breaker, replace the oven. It really is not worth attempting to repair one of these appliances unless you have extensive professional training and have access to the correct tools and equipment. Don't mess with it, replace it.

Posted on Nov 27, 2014

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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

MicrowaveSvc
  • 9098 Answers

SOURCE: 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.


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

Posted on Sep 06, 2012

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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...

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Mcd 1311st blowing circuit breaker


Generally microwaves should be on their own breaker. Hard wired ones are required to be by code.

If yours has a plug - make sure the plug is original with the unit, not added later or spliced onto hard-wired power leads.

Plug into and outlet rated 15A as the only thing on a 15A branch circuit and try again. If it still trips, try a 20A line and circuit. If it trips that, trash the microwave and buy a new one. Nothing is meant to be repaired inside.
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Nov 03, 2017 | Microwave Ovens

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.


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

Aug 30, 2012 | Microwave Ovens

1 Answer

Samsung SMH9151 trips breaker when plugged in


You have a sort circuit inside, call a repairman or take to the repair shop

Aug 23, 2012 | Samsung SMH9151 Microwave Oven

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

I keep reseting my 15 amp breaker daily. I even moved the unit.


No. The unit is only supposed to pull 9.1 amps. (wattage divided by voltage equals amps) Your unit has a short, or your breaker is bad. Turn on the unit, when it trips the breaker see if the breaker is hot, If so, thats an indication the breaker is bad.

Apr 11, 2010 | Danby DMW112 Microwave Oven

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

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

Jan 13, 2009 | LG Microwave Ovens

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