7E Axis Motor Going Crazy

Hello,

I have an Optronics 7E edger that just the other day when I turned it on, while it's doing the normal start-up burn-in process, the Axis motor just keeps turning and won't stop. Even if I exit out of the Burn-in and try to run a job, it prompts me to run the the burn in again. It's like it can't tell what Home is for the axis. I know it's not the servo motor, because I had an extra one on hand, and when I swapped it out the same thing is still happening. I have an extra 7E that's not in use that I can use for spare parts, but I'm hesitant to switch the board out, not knowing whether that's the problem or not. Anybody have an idea what the problem could be?

Remove the cover to the axis gear box and check alignment of the optical sensor in relation to the spine wheel. It may be as simple as clearing debris.

Ben,
You can see if its the axis board directly underneath the servo motor...