New Dark motor with dark mind?

Bought a new Dark Supreme intelligent motor as replacement for the positioner of the same make that stopped moving after 5-6 years. I use genuine DM800HD. With USALS or Diseqc at the Positioner setup I found satellites, but in Satfinder there is nothing. No signal and not possible to scan for channels. Used two different images - Openatv and Newenigma2. Same result. Occasionally, Dark motor does not respond or it moves by using Satfinder and stops on each satellite, but Satfinder does not get signal and could not lock on satellite.

What is wrong? Am I right, if LNB is faulty, there would be no signal in Positioner setup? If something is wrong with the image, would it be the same fault at two different images? Could it be something wrong with software in Dark motor? How can I check it? Any help would be greatly appreciated.

Thank you, Jenseneverest. After installing the motor, using USALS I checked on 0.8, 16, 19 and 28 satellites and got good signal reception, using Positioner setup in Newenigma2. Trouble started when I switched to Satfinder. Satfinder could not find any satellite. Later last night I found the dish turned to East, it seems at the point of east limit. Its not budging from there.

Perhaps it makes sense: Satfinder powered up the positioner. No reception signal came from the dish, so it could not find any satellite and it went all the way to East and stopped at its limit. I can go up and by manual buttons move the dish back to 0, but still Satfinder finding nothing.

Someone more experienced than me might make better conclusion - why Positioner setup in Dreambox finds the satellites as it should, but Satfinder cannot. Without getting signals in Satfinder I cannot scan satellites and motorised dish is useless. Even if I leave the dish, lets say, on 16, 19 or 28, with good signals in Positioner setup, there is no signal when I go through channel lists.

Is it possible that something is wrong in Dark motor software, so it does not process LNB signals (not passing through) when Dreambox tries to tune it in Satfinder?

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Thank you 007.4. I've redone coax F-connectors. Still the same problem persists. I checked today with satfinder for signal and it comes pretty loud and high on Eutelsat. It shows that my LNB is still at work. Trouble is that satellite signals are not coming through to the Dreambox when I use Satfinder and try to scan for channels. Any other idea?