On Thursday, December 12, 2013 10:48:14 AM UTC-6, micky wrote:
A friend with a Panasonic microwave, Inverter model, physcially a big

one, says it is tripping the circuit breaker after about 5 minutes of

running.



They've reset the breaker several times and it's the same each time.



What's your best guess?



I havent' looked at it yet, but my best guess from afar is that some

of the primary windings in the transformer have shorted, and thus the

impedance of the primary has decreased and it's drawing more current

than it should, more than 15 amps. Does this sound reasonable? If

not reasonable, then possible?



Replace the fuse with a penny .