Haas Error Code Reference — All 39 Codes
Complete Haas error code cheat sheet. All 39 fault codes with plain-English explanations and direct links to fix guides.
Use this page when your Haas drive, CNC, servo, or controls hardware posts an alarm during production. Start with the exact code, then open the fix guide for overloads, encoder faults, communication alarms, power quality issues, and drive or board failures.
Tip: search the exact brand, model, and alarm together, for example "Haas F0001" or "Haas overcurrent fault".
| Error Code | What It Means | Guide |
|---|---|---|
| Haas Alarm 102 | Servo Drive Fault Fix | Fix → |
| Haas Alarm 103 | Servo Overload Fix | Fix → |
| Haas Alarm 103 Overheating | CNC Machine Thermal Fault Diagnosis and Fix | Fix → |
| Haas Alarm 104 Feed Hold | Causes & Fix | Fix → |
| Haas Alarm 105 E-Stop | Causes & Fix | Fix → |
| Haas Alarm 106 | Causes & Fix | Fix → |
| Haas Alarm 107 | Causes & Fix | Fix → |
| Haas Alarm 108 | Causes & Fix | Fix → |
| Haas Alarm 110 | Causes & Fix | Fix → |
| Haas Alarm 111 | Drive Fault | Fix → |
| Haas Alarm 112 | Motor Overtemp | Fix → |
| Haas Alarm 113 | Spindle Encoder Fault Causes & Fix | Fix → |
| Haas Alarm 114 | Spindle Over Speed Causes & Fix | Fix → |
| Haas Alarm 115 Spindle Overload | Causes & Fix | Fix → |
| Haas Alarm 116 | Causes & Fix | Fix → |
| Haas Alarm 117 | Causes & Fix | Fix → |
| Haas Alarm 118 | Spindle Orientation Fault Causes & Fix | Fix → |
| Haas Alarm 119 | Spindle Not At Speed Causes & Fix | Fix → |
| Haas Alarm 120-129 | Automatic Tool Changer (ATC) Fault Fix Guide | Fix → |
| Haas Alarm 121 | ATC Arm Fault | Fix → |
| Haas Alarm 122 | ATC Chain Fault | Fix → |
| Haas Alarm 123 | Causes & Fix | Fix → |
| Haas Alarm 124 | Causes & Fix | Fix → |
| Haas Alarm 125 Tool Carousel Fault | Causes & Fix | Fix → |
| Haas Alarm 126 | ATC Door Fault | Fix → |
| Haas Alarm 127 | Tool Unclamped Fault | Fix → |
| Haas Alarm 128: Tool Change Error | Causes and Fixes | Fix → |
| Haas Alarm 129: Spindle Orientation Error | Fix Guide | Fix → |
| Haas Alarm 130: Spindle Speed Error | Causes and Fix | Fix → |
| Haas Alarm 131 | E-Stop Chain Fault Fix | Fix → |
| Haas Alarm 132 | Servo Amplifier Fault Fix | Fix → |
| Haas Alarm 134 Spindle Drive Fault | Causes & Fix | Fix → |
| Haas CNC Alarm 101 | Emergency Stop Active Fix | Fix → |
| Haas CNC Alarm Codes | Complete Guide (100-Series and Up) | Fix → |
| Haas EC-400 Horizontal Machining Center Alarm Codes | Haas EC-400 horizontal machining center alarm codes and diagnostics. Common HMC alarms, causes, and technician-level troubleshooting. | Fix → |
| Haas Next Generation Control Alarm Codes Guide | Haas Next Generation Control (NGC) alarm codes: what each means and how to fix it. | Fix → |
| Haas SL-20 Lathe Common Alarms | What They Mean and How to Fix Them | Fix → |
| Haas VF-2 Common Alarms Guide | What They Mean and How to Fix Them | Fix → |
| Haas VF-4 Common Alarms Guide | What They Mean and How to Fix Them | Fix → |