Check your latitude, and longitude, on a website, like dishpointer.com. Remember negative longitude values, e.g. -1.0023, = West, positive = East, e.g. 1.0023
If your motor wasn't set up correctly, set to 0, along with the dish, then moved, using your receiver, once the correct Latitude, and Longitude, were entered, to a suitable satellite, near to your longitude reading, then physically moved, on the pole, to get the satellite, this could explain the problem of it not finding the satellite.
The basics, of setting up a motorized dish, is to first ensure the pole is plumb, and sturdy enough to take the weight of the dish/motor, including any wind.
The next is to ensure you set the dish/motor up correctly, to get it to follow the satellite arc.
1. Set the motor/dish to zero, with no skew on the LNB, so it's also set to 0, pointing straight down.
2. Enter your exact Latitude, and Longitude, intio the receiver, using the USALS option.
3. Send the dish to a suitable satellite, one you can receive, in your location, and have a clear line of sight to. It's probably best to use one nearest to your True South position. Your True South is based on your Longitude reading, thus -1.0023 has your True South close to 1 West, 1.0023 has it close to 1E.
4. Physically move your dish, and motor, on the pole to get the best signal possible, from the selected satellite.
5. Send your dish, using your receiver, to the furthest East, then West, satellite, you can reeive, and check the signal quality readings. If they aren't as strong as they should be then send it back to the satellite, you set it up on, make some minor adjustments, on the brackets, then try again. Keep doing this until you're happy with the signal quality readings, both East, and West, then heck other satellites.