⚙️CNC Machines Error Codes
Alarm and fault code troubleshooting for CNC machine tools. Servo alarms, spindle faults, axis errors, and control-system issues across Fanuc, Haas, Mazak, Okuma, Siemens, and Heidenhain controllers.
69 guides · Top brands: Fanuc, Haas, Mazak
Section editor: Error Code Fixes Editorial Team ·
Most Common CNC Machines Fixes
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Fanuc Alarm 300 — APC Alarm Fix (Absolute Encoder)
Fanuc Alarm 300 is an APC (Absolute Pulse Coder) alarm on the absolute encoder. This guide covers battery replacement, encoder initialization, and board-level diagnosis.
Recent CNC Machines Guides
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Doosan / DN Solutions Alarm 302 — APC Fix
Doosan (now DN Solutions, after the 2022 rebrand) alarm 302 on the Fanuc-controlled VMC, HMC, and Mynx machining centers indicates an APC (Automatic Pallet...
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Fanuc Alarm 430 — Servo Motor Overheat Fix
Fanuc Alarm 430 (Servo Motor Overheat, with axis name) means the thermistor inside the named servo motor's stator winding exceeded the trip threshold —...
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Haas Alarm 219 — X-Axis Servo Error Fix
Haas Alarm 219 (X-Axis Servo Error) on NGC machines is the X-axis-specific servo position-loop fault — distinct from the generic Alarm 114 (Servo Error Too...
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Mazak Matrix Alarm 1041 — Battery Voltage Drop / Encoder Battery Fix
Mazak Matrix Alarm 1041 (Battery Voltage Drop) is a warning that the absolute encoder backup battery has dropped below the low-voltage threshold — about...
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Mazak Alarm 218 — Spindle Motor Overheat Fix
Mazak Alarm 218 (Spindle Motor Overheat) fires when the thermistor embedded in the spindle motor stator windings exceeds the trip threshold — typically...
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Mazak Alarm 415 — Position Detector Error Fix
Mazak Alarm 415 (Position Detector Error) means the servo drive lost a clean signal from the position encoder on one axis — either the absolute position...
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Mazak Servo Parameter Error Fix (Matrix, M-Plus, Smooth)
A Mazak servo parameter error (variously labeled "Servo Parameter Error," Alarm 1280, Alarm 13, "PARAM SET," or shown as a drive-side AL on the MDS...
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Mori Seiki / DMG MORI Alarm 3010 — Servo Error Fix
Mori Seiki / DMG MORI Alarm 3010 (sometimes formatted as "SV-3010" or "Servo Alarm 3010" in the OPERATOR screen) is a Fanuc servo amplifier error indicating...
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Okuma OSP Alarm 2202 — Spindle Fix
Okuma OSP control alarm 2202 (formatted as "2202 SPINDLE" or "2202-1" with axis sub-code) indicates the spindle drive amplifier has detected a fault during...
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Heidenhain iTNC 530 Error Codes: Complete Guide
Updated:Heidenhain iTNC 530 CNC control error codes and diagnostics. Error categories, causes, and technician-level troubleshooting.
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Mazak Nexus Series Error Codes: Complete Guide
Updated:Mazak Nexus CNC error codes and alarm diagnostics. Alarm categories, causes, and technician-level troubleshooting for Nexus turning and machining centers.
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Okuma MC-V4020 Machining Center Alarm Codes: Complete Guide
Updated:Okuma MC-V4020 machining center alarm codes and diagnostics. Alarm categories, causes, and technician-level troubleshooting for Okuma OSP-P controls.
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