I swapped out a dimmer switch for another one. This was fairly standard, only two wires to connect, no ground (old condo). Turned the breaker back on, tried things out, the on/off switch worked, the dimmer worked, but playing with the dimmer, there was a short, a brief flash of light, then the breaker tripped. I swapped out the light bulb but I still have no light, so I'm inclined to conclude that the dimmer is fried.
I'm about to get a voltage tester to confirm that the wire is still live, then will try putting on a new dimmer switch.
question: what should I check to make sure this doesn't happen again? could it be debris? I'm really puzzled as to why this happened and would love to make sure I'm not overlooking something as I rewire this.