Picked up a simple box type thermostat but can't get the thing to work! I'm trying to put it inline with a three prong extension cord. I know the power is going to it and the sensor works because it comes on and correctly reads the temperature when plugged in. I even hear the circuit close when the set temp is reached. However, there isn't power leaving the box! Nothing works plugged into the extension cord! Anybody have experience wiring these? This is what I have right now. I cut the cord and put the male end into slots one and two (far left). I put the female ends in slots five and six (the heater slots). The ground ends are under the cap. The temp prob is in its slots. Why isn't this working?!?