Last night, I was getting the usual horrible rattling noise from the blower on my Northstar, so I turned it off via the override switch on the wall. When I turned it back on before heading to bed, all the lights in my living room went out. It looks like there's a dead short in the wiring for the blowers, and I'm not sure where to start looking for it. I checked out the wiring in the wall box with the switch and rheostat this morning and didn't see anything unusual, so I'm looking for advice on where to start on the fireplace itself.