All codes
Service call
SC720
Punch unit error
BFinisherCommon field call
Level B — stop, power-cycle may clear
First check
Punch not homing or chad full. Empty the chad box, then punch HP. Confirm the punch SKU matches this finisher.
What it means
Punch unit error. Confirm the exact subcode against the FSM for this serial — meaning can shift by generation.
Likely causes
- Punch not homing or chad full. Empty the chad box, then punch HP. Confirm the punch SKU matches this finisher.
On-site steps
Parts to have on the truck
- Punch unit
- Chad box
Related codes
Confirm the subcode and part number in the FSM for this serial. Raicoh is a field companion, not a replacement for the book.