Code P10-10118: I1 HSFan PS Low
Issue Description & Safety Warning
The Allen-Bradley PowerFlex 750 Drive has triggered a critical I1 HSFan PS Low alarm. Immediate attention from a qualified operator or maintenance technician is required to prevent secondary damage to the equipment or spoiled parts during the manufacturing cycle. Always ensure standard safety and LOTO procedures are followed before accessing electrical cabinets.
Official Troubleshooting Steps
Type: Alarm 1 A heatsink fan power-supply undervoltage has occurred. • Check for 230V supply on the inverter power supply board at connector P6. If there is voltage, replace the inverter power supply board. • If there is no voltage, check the control power transformer, its primary and secondary fuses, and wiring harness.
Source: Allen-Bradley PowerFlex 750-Series AC Drives Programming Manual (750-PM001)
Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.
About Allen-Bradley PowerFlex 750 Drive Alarms
Allen-Bradley controllers include extensive self-diagnostics that flag or halt the machine when a fault is detected. Error code P10-10118 on the PowerFlex 750 Drive identifies one specific fault condition — its documented cause and the official corrective steps are listed above, sourced from Allen-Bradley's service documentation. Always confirm against the manual for your exact machine configuration and follow LOTO procedures before servicing.
Complete Alarm List: 663 Allen-Bradley PowerFlex 750 Drive codes.
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