hi, I have a Trane central air conditioning unit and every time i turn it on, the breaker trips. I checked the breaker and the ground in the panel, and everything there looks fine. After checking all the connections at the unit itself, I diconnected the cable completely, turned the breaker back on, and no trip. Does this mean its something in the unit itself causing it to trip, or could it be something in the wiring leading up to the unit? The unit is about 4 yrs old and still under warranty. I'd appreciate any help or info you can give me on this. thanks, TG