Wilco - go to the "System Status" you will see Trip Count. If this is zero after receiving a refresh and does not start counting up you have a problem. This count may take a few minutes to start.
On my coach I still have the old LNB and two receivers that have NOT been upgraded for the 3rd new satellite knowing that I would not get reception in the south country. I did take a new LNB with me as well as a receiver that has been upgraded to receive the new satellite with me and if I have time I may change it out and see if it will work and what if any other channels I can get.