Haas CNC Error Code 172

Haas CNC Critical Drive

Model: CNC | Code: 172

Applicable Systems
Haas CNC Mill (VF/VM Series)

Symptoms

A axis drive fault detected during operation.

Possible Causes

  • A axis drive reported a hardware fault.
  • Drive component failure or overheating.

Troubleshooting Steps

  1. Step 1: Check the A axis drive fault code and status.
    Drive fault identified.
  2. Step 2: Replace the drive or fix the fault cause.
    A axis drive operates normally after fix.

How to Reset

Fix the A axis drive fault and reset to clear the alarm.

Related Haas Fault Codes

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Source: Haas Alarm Codes, Haas Automation

Category: CNC