Internal Fault

What does -InF mean?

This fault signifies a general internal malfunction within the drive controller, possibly related to internal circuitry or connections. Electromagnetic interference (EMI) can sometimes induce such faults, or it could be a hardware failure. Continued operation with an internal fault is not possible and requires immediate attention to prevent further damage or unexpected behavior.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   If the fault persists after checking EMI and accessory connections, the drive controller likely has a permanent internal hardware failure and needs replacement.