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Industrial Error Code Fixes

Siemens Error Code Reference — All 124 Codes

Complete Siemens error code cheat sheet. All 124 fault codes with plain-English explanations and direct links to fix guides.

Use this page when your Siemens 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 "Siemens F0001" or "Siemens overcurrent fault".

Error Code What It Means Guide
Siemens 840D Alarm 380000 Causes & Fix Fix →
Siemens Cerberus/MXL Fire Alarm Fault Codes Troubleshooting Guide Fix →
Siemens Circuit Breaker Fault Codes Complete Guide Fix →
Siemens Desigo BMS Fault Codes Complete Guide Fix →
Siemens F01018 Causes & Fix Fix →
Siemens F1 Fault Overcurrent Causes & Fix Guide Fix →
Siemens G120 A01028 Causes & Fix Fix →
Siemens G120 A01028 Fault Causes & Fix Fix →
Siemens G120 A01590 Alarm Causes & Fix Fix →
Siemens G120 A01590 Fault Code Causes & Fix Fix →
Siemens G120 A03520 Causes & Fix Fix →
Siemens G120 A03520 Fault Causes & Fix Fix →
Siemens G120 A05000 Causes & Fix Fix →
Siemens G120 A05000 Alarm Causes & Fix Fix →
Siemens G120 A05001 Current Limit Causes & Fix Fix →
Siemens G120 A05001 Fault Code Causes & Fix Fix →
Siemens G120 A05002 Causes & Fix Fix →
Siemens G120 A05004 Causes & Fix Fix →
Siemens G120 A05006 IGBT Overtemperature Warning & Fix Fix →
Siemens G120 A05006 Alarm Causes & Fix Fix →
Siemens G120 F0003 Causes & Fix Fix →
Siemens G120 F0004 Causes & Fix Fix →
Siemens G120 F0006 Fault Causes & Fix Fix →
Siemens G120 F0015 Fault Causes & Fix Fix →
Siemens G120 F01000 Causes & Fix Fix →
Siemens G120 F01000 Causes & Fix Fix →
Siemens G120 F01001 Causes & Fix Fix →
Siemens G120 F01001 Causes & Fix Fix →
Siemens G120 F01015 Causes & Fix Fix →
Siemens G120 F01018 Causes & Fix Fix →
Siemens G120 F01033 Causes & Fix Fix →
Siemens G120 F01033 Causes & Fix Fix →
Siemens G120 F01034 Causes & Fix Fix →
Siemens G120 F01034 Causes & Fix Fix →
Siemens G120 F01040 Causes & Fix Fix →
Siemens G120 F01044 Causes & Fix Fix →
Siemens G120 F01044 Causes & Fix Fix →
Siemens G120 F01105 Causes & Fix Fix →
Siemens G120 F01105 Causes & Fix Fix →
Siemens G120 F01122 Causes & Fix Fix →
Siemens G120 F01122 Causes & Fix Fix →
Siemens G120 F01205 Causes & Fix Fix →
Siemens G120 F01205 Causes & Fix Fix →
Siemens G120 F01250 Fault Causes & Fix Fix →
Siemens G120 F01600 Causes & Fix Fix →
Siemens G120 F01600 Causes & Fix Fix →
Siemens G120 F01611 Causes & Fix Fix →
Siemens G120 F01625 Causes & Fix Fix →
Siemens G120 F01625 Causes & Fix Fix →
Siemens G120 F01650 Causes & Fix Fix →
Siemens G120 F01650 Causes & Fix Fix →
Siemens G120 F01659 Causes & Fix Fix →
Siemens G120 F01659 Causes & Fix Fix →
Siemens G120 F01662 Causes & Fix Fix →
Siemens G120 F01662 Causes & Fix Fix →
Siemens G120 F03505 Causes & Fix Fix →
Siemens G120 F03505 Causes & Fix Fix →
Siemens G120 F30002 Causes & Fix Fix →
Siemens G120 F30002 DC Link Overvoltage Causes & Fix Fix →
Siemens G120 VFD F01040 Causes & Fix Fix →
Siemens G120C VFD Fault Code Guide Complete Diagnostic Reference Fix →
Siemens Micromaster 440 Fault F002 Overcurrent Fix →
Siemens Micromaster F0001 Causes & Fix Fix →
Siemens Micromaster F0001 Causes & Fix Fix →
Siemens Micromaster F0002 Causes & Fix Fix →
Siemens Micromaster F0002 Causes & Fix Fix →
Siemens Micromaster F0003 Causes & Fix Fix →
Siemens Micromaster F0003 Causes & Fix Fix →
Siemens Micromaster F0004 Causes & Fix Fix →
Siemens Micromaster F0004 Causes & Fix Fix →
Siemens Micromaster F0005 Causes & Fix Fix →
Siemens Micromaster F0005 Causes & Fix Fix →
Siemens Micromaster F0011 Causes & Fix Fix →
Siemens Micromaster F0011 Causes & Fix Fix →
Siemens Micromaster F0012 Causes & Fix Fix →
Siemens Micromaster F0015 Causes & Fix Fix →
Siemens Micromaster F0015 Causes & Fix Fix →
Siemens Micromaster F0020 Causes & Fix Fix →
Siemens Micromaster F0021 Causes & Fix Fix →
Siemens Micromaster F0022 Causes & Fix Fix →
Siemens Micromaster F0022 Causes & Fix Fix →
Siemens Micromaster F0023 Causes & Fix Fix →
Siemens Micromaster F0023 Causes & Fix Fix →
Siemens Micromaster F0024 Causes & Fix Fix →
Siemens Micromaster F0024 Causes & Fix Fix →
Siemens Micromaster F0041 Causes & Fix Fix →
Siemens Micromaster F0051 Causes & Fix Fix →
Siemens Micromaster F0052 Causes & Fix Fix →
Siemens Micromaster F0060 Causes & Fix Fix →
Siemens Micromaster F0070 Causes & Fix Fix →
Siemens Micromaster F0071 Causes & Fix Fix →
Siemens Micromaster F0072 Causes & Fix Fix →
Siemens Micromaster F0080 Causes & Fix Fix →
Siemens Micromaster F0085 Causes & Fix Fix →
Siemens Micromaster F0101 Causes & Fix Fix →
Siemens Micromaster F0221 Causes & Fix Fix →
Siemens Micromaster F0222 Causes & Fix Fix →
Siemens Micromaster Fault F001 Causes & Fix Fix →
Siemens S7-300/400 CPU Fault Code Guide Siemens S7-300 and S7-400 PLC fault codes explained. Learn how to diagnose STOP mode, hardware errors, and diagnostic buffer entries using STEP 7 and TIA Portal. Fix →
Siemens SENTRON 3WL/3VA Fault Codes Troubleshooting Guide Fix →
Siemens SINAMICS G120 F00001 Fault Causes & Fix Fix →
Siemens SINAMICS G120 F30001 Fault Power Module Overcurrent Fix Fix →
Siemens SINAMICS G120 F30002 Fault DC Link Overvoltage Fix Fix →
Siemens SINAMICS G120 F30003 Fault DC Link Undervoltage Fix Fix →
Siemens SINAMICS G120 F30011 Fault Phase Loss Fix Fix →
Siemens SINAMICS G120 F30021 Fault Ground Fault Fix Fix →
Siemens SINAMICS G120 Fault F30021, Ground Fault Causes & Fix What Siemens SINAMICS G120 Fault F30021 means, why the power unit detects a ground fault, and how to isolate the motor, cable, or brake wiring problem. Fix →
Siemens SINAMICS G120X Fault Codes: Complete Guide Siemens SINAMICS G120X VFD fault codes and diagnostics. F-series and A-series codes, causes, and technician-level troubleshooting. Fix →
Siemens SINAMICS S120 Fault F07900 Motor Overtemperature Fix Fix →
Siemens SINAMICS V20 F1 Fault Causes & Fix Fix →
Siemens SINAMICS V20 F4 Fault Causes & Fix Fix →
Siemens SINAMICS V20 F4 Fault Inverter Overtemperature Fix Fix →
Siemens Sinumerik 828D Alarm Codes Guide Complete Diagnostic Reference Fix →
Siemens Sinumerik 840D Alarm 25000 Causes & Fix Fix →
Siemens SINUMERIK Alarm 25000 Drive Fault Fix Fix →
Siemens Sinumerik Alarm 25201 Causes & Fix Fix →
Siemens Sinumerik Alarm 300204 Causes & Fix Fix →
Siemens Sinumerik Alarm 380500 Causes & Fix Fix →
Siemens Sinumerik Alarm 380600 Encoder Fault Fix →
Siemens SIPROTEC Protective Relay Faults: Complete Guide Siemens SIPROTEC relay faults and diagnostic messages. Hardware, communication, and protection faults with technician-level troubleshooting steps. Fix →
Siemens VFD F0002 Fault Overvoltage: What It Means and How to Fix It Fix →
Siemens VFD F1 Fault Causes & Fix Fix →
Siemens VFD F1 Fault (SINAMICS V20 Overcurrent): Causes, Codes, Fix F1 fault on a Siemens SINAMICS V20 VFD means overcurrent. Step-by-step diagnosis of motor winding faults, short circuits, and ramp settings that trip F1 — with parameter numbers and OEM part references. Fix →
Siemens VFD Fault Codes SINAMICS G120, V20, S120 Guide Fix →
View all Siemens guides →