Haas CNC Error Code 131

Haas CNC Critical Power

Model: CNC | Code: 131

Applicable Systems
Haas CNC Mill (VF/VM Series)

Symptoms

Bus voltage charging unit failure detected.

Possible Causes

  • DC bus charging unit hardware failure.
  • Charging resistor or relay fault.

Troubleshooting Steps

  1. Step 1: Check the DC bus charging unit.
    Charging unit fault identified.
  2. Step 2: Replace the charging unit components.
    Bus voltage charging restored.

How to Reset

Fix the charging unit and reset to clear the alarm.

Related Haas Fault Codes

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Source: Haas Alarm Codes, Haas Automation

Category: CNC

Published: 2026-10-02