Haas Error Code and Repair Guides - 39 Guides
Haas industrial controls troubleshooting hub with 39 guides for fault codes, alarms, symptoms, parts checks, and repair decisions.
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".
Start With These Haas Guides
Haas FAQ
Where should I start with Haas error codes?
Start with the exact Haas model and displayed code or alarm, then open the closest guide on this page. Match the symptom, recent service history, and any secondary codes before resetting the equipment or ordering parts.
Do Haas fault codes always mean a bad control board?
No. Many Haas codes point to airflow, water flow, sensors, wiring, power quality, filters, switches, or operating conditions. Check the simple causes in the guide before replacing an expensive board.
When should I stop troubleshooting a Haas fault myself?
Haas industrial alarms can involve stored energy, moving machinery, high-voltage drives, servo systems, and production interlocks. Stop and use the repair checklist or compare service options when the guide points to line voltage, machine guarding, stored energy, safety circuits, or repeated faults after a reset.
| Error Code | What It Means | Guide |
|---|---|---|
| Haas CNC Alarm Codes | VF, ST, Servo, Spindle, ATC | Fix → |
| Haas Alarm 102 | Servo Drive Fault Fix | Fix → |
| Haas Alarm 103 | Servo Overload Fix | Fix → |
| Haas Alarm 103 Overheating Fault | Haas alarm 103 overheating guide for cabinet fans, filters, coolant condition, spindle bearings, shop heat, duty cycle, and drive protection. | 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 | Servo Motor Overtemp 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 | Fix → |
| Haas Alarm 114 | Spindle Over Speed Fault | 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 ATC Fault | Haas alarms 120-129 point to automatic tool changer faults. Check air pressure, carousel motion, proximity switches, tool pockets, and recovery steps. | Fix → |
| Haas Alarm 121 | ATC Arm Fault | Fix → |
| Haas Alarm 122 | ATC Chain Fault | Fix → |
| Haas Alarm 123 | ATC Arm Not Home Fault | 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 | Haas alarm 132 guide for servo amplifier faults, drive checks, motor windings, cables, axis isolation, and replacement decisions. | Fix → |
| Haas Alarm 134 Spindle Drive Fault | Causes & Fix | Fix → |
| Haas CNC Alarm 101 | Emergency Stop Active Fix | 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 alarm-code guide for NGC machines, covering alarm history, axis faults, spindle alarms, tool-changer issues, and reset workflow. | Fix → |
| Haas SL-20 Lathe Common Alarms | Haas SL-20 lathe alarm guide for turret, spindle, servo, overtravel, hydraulic, tool changer, and encoder faults. | Fix → |
| Haas VF-2 Common Alarm Codes | Haas VF-2 alarm guide for spindle faults, tool-changer errors, overtravel alarms, servo load, air pressure, cabinet cooling, and reset checks. | Fix → |
| Haas VF-4 Common Alarms | Haas VF-4 alarm guide for spindle, tool changer, axis servo, overtravel, low air, encoder, and drive faults. | Fix → |