microwave tripping circuit breaker

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Old 08-31-13, 04:59 PM
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Smile microwave tripping circuit breaker

I have a built-in microwave on its own designated breaker. Our home will be 8 years old in Nov. and the microwave has worked til now. My husband figured it was the circuit breaker, so we replaced it. The microwave still blows the circuit. Is it our wiring, or do we need a new microwave?
Thanks for reading this and hopefully the help you will give.
Cheryl
 
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Old 08-31-13, 05:52 PM
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Does it trip immediately? If so unplug or disconnect the microwave. If it still trips it is the wiring. If it no longer trips it is probably the microwave. If the microwave has a plug you can confirm this by plugging it into an extension cord on another circuit.
 
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Old 08-31-13, 05:54 PM
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How many amps is the breaker & what size wire is connected to it? I just ran into a problem like that. Someone had installed 20 Amp duplex breakers to make more room in the box but that sent 20 amps through #14 wire, which shouldn't be.
 
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Old 08-31-13, 06:34 PM
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Someone had installed 20 Amp duplex breakers to make more room in the box but that sent 20 amps through #14 wire, which shouldn't be.


Yes, #14 wire should be protected by a 15 amp breaker, but a 20 amp breaker does not send 20 amps through the wire regardless of what size the wire is. The only amperage that goes through the wire is determined by the load or current drawn through the wire by that load.

Follow Ray's suggestion.
 
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Old 08-31-13, 06:49 PM
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Ok, it doesn't send it but it allows it, which is not good.
 
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