Tried to replace a light switch and now my hallway is a disco

I was in my apartment in Phoenix last weekend, swapping out an old switch for a dimmer. I turned off the breaker I thought was right, but I guess I was wrong because when I touched the wires, there was a loud pop and a bright flash. The new dimmer was fried, and now the light in the hall flickers on and off randomly. I had to call my landlord, who sent an electrician that cost me $150. Has anyone else mixed up their breakers and have a good way to double-check before you start?

2 comments

2 Comments

jana_price1d ago

Yep, my breaker box is a mystery novel too.

hannah24015h ago

Disagree, @jana_price, mine's pretty clear once you label it.