Unknown Drive Rating

What does InF1 mean?

The drive has detected an unknown drive rating. This implies a critical internal inconsistency where the drive cannot identify its own power or voltage characteristics, preventing safe and proper operation. This usually points to an internal hardware issue.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   If the fault persists, it indicates an internal hardware fault, likely requiring replacement of the control board or the entire drive unit.