DL2 Pan Problem

Hello I am using 4 DL2 with a Hog 3. Everything was working perfectly until one of the DL2 started giving me issues with the PAN. Aparently, when I switch it ON makes strange noises like if the PAN was blocked (obviously it is not blocked). After a while, stops and tries to find it position, but the PAN and TILT don't work properly. The DL2 tries to move, but its not moving properly, it doesnt fint its position, and it moves slower than usual.

I tried to clean the PAN sensor, and it worked again for a couple of days, but now again it's doing the same thing. I changed the sensor for another one that I had in other unit, and the same thing happens: it worked fine for 1 day, but next day same problem.

I have restarted the server, reset All Motion but I still have the same problem. Any ideas?

Thanks in advance!