FUSE LED
Fuse Blown
Fanuc · R-30iB Mate + Mate Plus Robot
What does FUSE LED mean?
The FUSE LED illuminates when an internal fuse blows. This typically indicates an overcurrent condition that has resulted in the protective fuse activating.
Common Causes
- The main power fuse for the control system or a specific module has blown, interrupting power to critical components.
- An overload condition or a short circuit has caused the fuse to fail, indicating a potential electrical fault in the system.
- The fuse may have reached the end of its lifespan and failed due to accumulated stress.
- Incorrect fuse rating or installation can lead to premature blowing.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Identify and remove the root cause of the blown fuse.
- 2
Replace the fuse.
Verified technical data. Last updated: March 2026
Related Faults
Source: Fanuc R-30iB Mate + Mate Plus Robot