My new Hovabator Genesis 1588 came in the mail today and I can't make heads or tails of the instructions. I have it set up properly. I plugged it in and the fan turned on. The light turned on for a few seconds then turned off. The only thing the instructions said about the light is it should turn on when it is plugged in and start flashing when it is nearing the set temperature. Should the light stay on until it is up to temperature or should it turn off like it did?