If your CNC control displays a 366 alarm, follow these steps to isolate and fix the issue:
For certain over-travel or reference position issues related to encoders, you can hold the "P" and "CAN" keys during power-up. This forces the system to ignore some alarms until the first zero reference is established. Professional Repair and Replacement fanuc 366 alarm
Dirt, oil, or coolant ingress into the pulse coder or scale. If your CNC control displays a 366 alarm,
