⚡Industrial Electrical Error Codes
Industrial electrical equipment fault codes. Variable frequency drive trips (OC, OV, UV, OL), UPS faults, switchgear alarms, transfer switch faults, and motor control center diagnostics.
207 guides
Section editor: Error Code Fixes Editorial Team ·
Most Common Industrial Electrical Fixes
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Industrial Equipment Error Code Database: Master Reference
Master reference hub for industrial equipment error codes covering HVAC, refrigeration, VFDs, CNC controls, boilers, pumps, compressors, and commercial kitchen equipment.
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VFD Fault Code Lookup: All Brands
Master VFD fault code lookup guide covering ABB, Danfoss, Siemens, Schneider, Mitsubishi, Yaskawa, Allen-Bradley, and more.
Recent Industrial Electrical Guides
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Yaskawa A1000 VFD AL-29 - Causes & Fix
AL-29 does not exist in Yaskawa A1000 documentation. Likely a misread code (CPF29 control circuit error) or third-party alarm label.
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ABB ACS580 A3A2 Fault - Causes & Fix
A3A2 means DC link undervoltage: the drive's internal DC bus is too low. Most often a blown input fuse or missing phase.
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Allen-Bradley PowerFlex 525 F122 - Causes & Fix
F122 means I/O board failure inside the drive control section. Power-cycle once; if it returns, replace the control module or drive.
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Allen-Bradley PowerFlex 525 F043 - Causes & Fix
F043 means Phase VW Short: excessive current between V and W output terminals. Most often caused by shorted motor leads or damaged cable.
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Allen-Bradley PowerFlex 525 F041 - Causes & Fix
F041 means Phase UV Short: excessive current between U and V output terminals. Most often caused by shorted motor leads or windings.
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Allen-Bradley PowerFlex 525 F040 - Causes & Fix
F040 means a phase-to-ground fault on output phase W. Most often caused by damaged motor cable or grounded motor winding insulation.
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Yaskawa A1000 PF Fault - Causes & Fix
PF means input phase loss or severe voltage imbalance on the incoming AC supply. Check incoming line fuses and wiring first.
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Allen-Bradley PowerFlex 525 F003 - Causes & Fix
F003 means Power Loss: the drive detected single-phase operation under load. Most often a blown input fuse or loose line connection.
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ABB ACS880 Fault Codes - Causes & Fix
ABB ACS880 fault codes indicate drive problems like overcurrent, overvoltage, or overtemp. Most common: check motor cables and cooling.
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Yaskawa A1000 oL2 Fault - Causes & Fix
oL2 on a Yaskawa A1000 means inverter/drive overload. The drive protected itself from overheating. Most often caused by heavy load.
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Yaskawa A1000 CPF12 Fault - Causes & Fix
CPF12 means internal control-board memory or CPU failure. Most common fix: cycle power once, then replace the control board if fault returns.
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Yaskawa GA800 A.144 Fault - Causes & Fix
A.144 is not a standard GA800 fault code. Verify the exact display-may be A.14 or misread. Check motor wiring, encoder connections, and option cards.
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