All to common of a problem. I suspect there were way more issues with the old Trav'ler's than Winegard wants to admit to. I had no end of issues with my two year old Trav'ler. I spent probably 40 hours in total emails, on the phone and on my own trouble shooting the problem. Ran coax directly from the LNB to the sat box, ran new wires, per Winegard tech support, installed a new LNB, different LNB arm, all for nothing. Finally Winegard said I had to remove the entire dish from the roof and ship it back to them for repair 80 dollars in shipping, 250 dollars for repairs and I finally got it back. Wrestled it back on the roof with help from SIL, hooked everything back up, powered it it and NOTHING! Exactly the same as before. By this time I had wasted over a month and was pretty steamed to say the least. So after a lot of phone calls and emails, I finally got someone in management who was sympathetic and authorized taking it to a Winegard dealer for further trouble shooting. Another 40+ hours of their labor later and they ended up in exactly the same boat as I was. DEAD!! Winegard finally gave up and installed a new SWM dish and it has been working perfectly for close to three years now.
I never found out what the problem was, but I suspect it had to do with the positioner and sat identifier control board. I use a Birdog sat meter for setting up my ground antenna, and after the Trav'ler would lock onto a sat, when it did, I would connect the Birdog and get no signal. Thus no sat broadcast signal. I even went so far as to try it on the coax directly from the LNB and same results. This is why i say the control board is probably toast. Trying to get it fixed from Winegard is really a c%^& shoot IMHO, as they said mine was working perfectly on the bench. But would not work in real life? Gee, maybe their bench needs recalibrating, ot they need to start testing in real life not just on the bench. i don't know.
Sure hope you have better luck than I did through out this fiasco.