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.

• Westinghouse Generator Error Codes: Complete Guide

  13 May, 2026

  Westinghouse generator error-code guide for iGen, WGen, and PTS fault indicators, CO Shield, overload, oil alert, battery, and AVR checks.

• Champion Generator Error Codes: Complete Guide

  13 May, 2026

  Champion generator error-code guide for CO Shield, overload, oil alert, starting faults, battery issues, sensors, and reset decisions.

• Honda Generator Error Codes: Complete Guide

  13 May, 2026

  Honda generator error codes for EU, EB, and EM series. Covers overvoltage, overload, oil alert, and Eco-Throttle faults with troubleshooting steps.

• Kohler Error Code 13 - Voltage Regulator Fault

  13 May, 2026

  Diagnose Kohler error code 13 AVR faults: fuse checks, rotor field voltage, residual voltage, diodes, and regulator replacement decisions.