Well not really, but he did eat the low voltage wires from the furnace. Last Friday I cane home from work and my house was about 90 degrees, so for whatever reason I just knew my puppy had something to do with it. After a look around in my house I went outside to take a look at the condenser and he had chewed through the wires from the furnace. I spliced in the wiring back together and everything worked fine. Saturday I came home and same deal, I go out back and he pretty well ate all the wire between the house and the condenser so I make a quick trip to lowes and run a new wire from the furnace to the condenser but nothing will come on now. The condenser will power on when you press the test button on the back of the unit. The breakers are good and power is going to the furnace but nothing turns on now, no heat, no ac, no fan when in the on position. The fan will not even power on when jumping the wires at the thermostat. The furnaces wiring diagram call for a fusible link inline before the fan limit switch but there is no fuse. Is it possible that the dog killed the limit switch due to the lack of a fuse? Any suggestion would be greatly appreciated. Also the fan powers on if you manually turn the dial on the limit switch a bit but the condenser does not.