I have a coolsat 6000. I left my coolsat on for about a week before I watched tv again. I had left it on channel 300. It shut off when I tried to use it. So I turned it back on and it keeps turning back off. It shows the number 3 on the coolsat and quick flashes to channel 300, no reception, and then the coolsat restarts. I have turned it off from the back, unplugged it, checked all the wires, and have even tried to start it w/o any wires going into it(except for the to TV wire). Any ideas on what happened and how I can fix it.