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 6 — Causes & Fix
Troubleshoot Manitowoc Error Code 6 on refrigeration equipment with checks for sensors, airflow, condenser condition, controls, and parts to price first.
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Mazak Alarm 400 Servo Error — Causes & Fix
Troubleshoot Mazak alarm 400 servo error on CNC equipment with checks for servo load, spindle drives, parameters, wiring, and when to call a controls tech.
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Navien Error Code E004 — Causes & Fix
Troubleshoot Navien error code E004 on boilers and tankless water heaters with checks for gas, venting, sensors, pumps, ignition, and service limits.
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Navien Error Code E010 — Causes & Fix
Troubleshoot Navien error code E010 on boilers and tankless water heaters with checks for gas, venting, sensors, pumps, ignition, and service limits.