Question about Kenmore 61684 Microwave Oven

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Upon startup, on high power, trips the circuit breaker. The microwave is on a dedicated 20 amp breaker. It's a recent vintage (2007) Kenmore unit, installed over a cooktop with the built in exhaust fan. I don't know the model number.

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  • Kenmore Master
  • 9,047 Answers

If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor. See here.

If it went dead several seconds after pressing the Start pad, that's usually a failing high-voltage transformer. See here.

If it goes dead or blows the breaker (or GFI) when you plug it in or open or close the door, then there's a problem with a door switch or door switch mount. See this file.

You can find exploded views and order parts by entering your model number (from the tag in or on the unit) at the Sears parts site.

BUT once you have the part number from the Sears site, you can often get the parts cheaper here.

There should also be a "mini-manual" (tech sheet) hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting, testing, and locating components.

upon startup, on high power, trips the circuit - dee77f7.jpg

At our Web site, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

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

Posted on Jan 31, 2010

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I don't have a dedicated circuit for a only microwave oven use only. Is this necessary?


no
microwave ovens are a plug -in unit and be plugged into any socket (GPO outlet) that has the correct voltage for the unit

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Your microwave should be on a 20 amp dedicated circuit. Often people add these later after initial construction and do not have an isolated circuit for it. If you have this on a circuit with other outlets or possibly the refrigerator, this can cause the circuit overload and trip your breaker. Try running an extension cord from another circuit that is not being used such as outlets, but not GFI outlets! and see if your microwave operates then. If not you have an internal issue with the microwave and it could be a defective Magnetron or doorswitch assy causing the problem.

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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.

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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!

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

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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?

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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

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Model #JES2251SJ02 trips immediately 20 amp circuit breaker. How many amps does this microwave need to work properly?


I called Public Service and they suggested either a dedicated line or upping tha amps of that c-breaker. I need to call an electrician to help me decide which is best for my house.

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