Well, dimmers blow if there's too much current being drawn through them. My house has few recessed lights, the light switches typically control outlets and they had dimmers (against code, dimmers are not supposed to control outlets). My wife unplugged the light and plugged in a vacuum cleaner into the dimmer controlled outlet and that fried one dimmer. The other was the bathroom had a little lamp on a dimmer on an outlet, my dad unplugged the light, plugged in a power tool and that fried another dimmer. They can only handle something like 600 watts and then fry. If yours fried, more than 600 watts was drawn through it.
It goes back to the light that fried the dimmer. You also have to watch out for metal boxes, sometimes a screw won't be tightened and because of the wires in the back and dimmers take up so much room they can sometimes twist a little bit and the screw will make contact with the metal sides. I hate when others say it, but I think we need to see a diagram of how you wired it. Do it in Paint, no thrills.
It goes back to the light that fried the dimmer. You also have to watch out for metal boxes, sometimes a screw won't be tightened and because of the wires in the back and dimmers take up so much room they can sometimes twist a little bit and the screw will make contact with the metal sides. I hate when others say it, but I think we need to see a diagram of how you wired it. Do it in Paint, no thrills.
