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New wall/microwave oven trips breaker...?

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  • New wall/microwave oven trips breaker...?

    Hi Everyone,

    I bought a wall oven that is a combo microwave/standard oven. It was reconditioned from Sears (Kenmore Model #48843 Stainless). According to the info, it draws 5400 watts:

    It's replacing an old GE double wall oven that lasted 21 years.
    I installed it, wired it and threw the breaker. It powered up and I set the clock on both the microwave and the oven. I turned on the oven to 350 degrees and it began to heat up, then tripped the breaker (30 amp). I went to the panel to reset the breaker and when I did, the fuse sparked and would not reset. I don't think it's a good idea to continue.
    My question: Is the problem likely to be in the oven or in the panel/breaker? Being that I bought it yesterday, a Sears tech will come out to have a look at it free of charge. Or should I call an electrician to have a go at it?
    Thanks for any insights you can provide.

    -- Mitch

  • #2
    a rough calculation puts the current draw at 22.5 amps well below the 30 amp breaker. I would center on the oven elements. the microwave part is probably operating at 120 volts.

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