When I placed my MTH Railking 2-8-0 on track, the engine would come up in DCS mode, but when I moved the thumbweel on the remote forward, the engine would not move. After taking off the shell, I pushed the flywheel with my hand, then the engine started to move under it own power with no issue. After I changed its direction, the engine once again moved under its own power. I ran it back and forth a few more times, no issues.
This is all fine and good, but I'm trying to figure out the root cause of the original issue, could it be a bad motor? This engine has an older PS2 5v board with a 9volt BCR.