I have a GQF 1500 - something or nother hatcher that a friend has let me borrow. It is just the hatcher, no turner. It has a thermostat wafer inside and a little black box which I believe is an electronic thermostat. I just plugged it in for the first time and I am not getting any heat. The wafer is making contact and I can hear it clicking as if it is trying to turn on, but the heating strip is not coming on. I have the electronic thermostate all the way up, and I have the wafer touching, but still nothing. Where else could I be having problems?