HVAC, Appliance, CNC, and VFD Error Code Repair Guides
Browse repair guides for HVAC, appliances, refrigeration, CNC alarms, VFD faults, generators, boilers, water heaters, and commercial equipment.
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Manitowoc Ice Machine Error Code 9 - High Pressure Cutout Fault
Manitowoc code 9 means high head pressure or a refrigerant circuit trip. Check condenser airflow, fan operation, ambient heat, and charge issues.
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Mazak Alarm 500 PC Alarm — Causes & Fix
Troubleshoot Mazak Alarm 500 (PC Alarm) on CNC equipment with checks for servo load, spindle drives, parameters, wiring, and when to call a controls tech.
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Mitsubishi CNC Alarm Y96 — Causes & Fix
Troubleshoot Mitsubishi CNC Alarm Y96 on CNC equipment with checks for servo load, spindle drives, parameters, wiring, and when to call a controls tech.
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Mitsubishi FR-E800 Fault E6 — Causes & Fix
Mitsubishi FR-E800 E6 points to drive or parameter trouble. Check motor data, wiring, load, restart settings, and fault history before parts.