FANUC Alarm Codes List

CNC machine controls offer highly specific error codes when electronic components malfunction or fail. Bad ports, low voltage, irregular current, faulty RAM or rising temperatures could trigger an alarm.

The servo drive , spindle amplifier , combination unit (SVPM) or power supply may be at fault.

FANUC Alarm Codes

Servo Drive Alarm Error Codes Spindle Amplifier Alarm Error Codes FANUC Power Supply Error Codes SVPM Combo Unit FANUC Alarm Codes Overtravel (OT) FANUC Alarm Codes Overheat FANUC Alarm Codes System FANUC Alarm Codes

Tri Star CNC Services provides free phone support for the following CNC machine controls:

FANUC and GE FANUC Parts Repair
  • FANUC 6
  • FANUC 10/11/12
  • FANUC 0 (A, B , C & i)
  • FANUC 21 & 21i
  • FANUC 16i & 18i
  • FANUC 16(A, B & C) & 18(A, B & C)
  • FANUC 16i/18i/21i-Model B

Use the description of the FANUC alarm code to guide your troubleshooting. If you’ve hit a dead end and need further support, please contact us and we’ll help you find the path to a solution.

Speak with an experienced FANUC technician at Tri Star CNC Services to get to the root of the problem and get it fixed.


4/7/2017 How Do FANUC Robots Work? 4/7/2017
3/3/2016 How Does a Servo Drive Work? 3/3/2016
Did you know this?
Setting Zero Return on Fanuc machines or any CNC Machine can sometimes be difficult. Each builder has their own way to set zero return through their own side of the control.

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