I tripped the main breaker this afternoon to replace an old breaker (it was the last old breaker in the panel, should have just left well enough alone i guess). When I flipped the main back on, every breaker connected to the left side doesn't. I really don't understand much about what's going on in there. I know that there are 2 phases and that leads me to believe that I have done something to the left one since none of those breakers have power now. I moved the circuit with the refrigerator and another one with many of the overhead lights to the other side so that I wouldn't have melted icecream and have to live in the dark. Is this bad? I really don't know if that was a bad idea or not, really just a desperate move. I also went ahead and flipped off all the 240 volt breakers since I know that they would draw from both sides and I assumed this might cause trouble. Is there a DIY fix, or had I better call and electrician. Thanks for any input!