we have Sharp miocowave, over the stove carousel, model R-1480, manufatured march 1998.When we touch the start button on the microwave, about 1/2 of the times the circuit breaker breakes. After we reset the circuir breaker, it is more likely that the microwave will start.Usually, the longer we wait after touching start, the better chace that it will start.Question is why does the circuit breaker break?
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