Posts

All the articles I've posted.

• Yaskawa GA800 E10 Fault Code - Causes & Fix

  30 May, 2026

  E10 on a Yaskawa GA800 indicates a keypad/operator communication error. Learn how to diagnose loose cables, faulty keypads, and control board issues.

• Yaskawa GA800 E09 Fault - Causes & Fix

  30 May, 2026

  E09 on a Yaskawa GA800 means acceleration error. The motor did not reach target speed in time. Learn causes, fixes, and reset steps.

• Yaskawa GA800 E07 Fault - Causes & Fix

  30 May, 2026

  Yaskawa GA800 E07 is an analog input selection error. Fix parameter conflicts in H3-02, H3-06, H3-10, and H7-30 settings.

• Yaskawa GA800 E04 Fault Code - Causes & Fix

  30 May, 2026

  E04 on a Yaskawa GA800 is not a standard fault code in manufacturer manuals. Learn how to verify the display and troubleshoot.

• Yaskawa GA800 E02 Fault - Causes & Fix

  30 May, 2026

  Yaskawa GA800 E02 (Er-02) is a minor fault caused by incorrect motor data during Auto-Tuning. Fix by verifying nameplate data and rerunning tuning.

• Yaskawa GA800 E01 Fault - Motor Data Error During Auto-Tune

  30 May, 2026

  Yaskawa GA800 E01 (Er-01) is a motor data error during Auto-Tuning caused by incorrect nameplate entries or mismatched parameters.

• Danfoss FC302 Alarm 39 - Causes & Fix

  30 May, 2026

  Danfoss FC302 Alarm 39 means heatsink sensor fault. Learn the common causes (power card, gate drive, ribbon cable) and repair steps.

• Danfoss FC302 Alarm 38 - Causes & Fix

  30 May, 2026

  Danfoss FC302 Alarm 38 means internal fault, usually a communication error between control and power cards. Reset steps inside.

• Danfoss FC302 ALARM 37 - Causes & Fix

  30 May, 2026

  ALARM 37 on a Danfoss FC302 means phase imbalance between power units. Learn the causes, diagnostic steps, and parts to fix it.

• Danfoss FC302 ALARM 36 - Causes & Fix

  30 May, 2026

  ALARM 36 on the Danfoss FC302 VFD signals mains failure. Learn the common causes (fuses, breakers, supply loss) and repair steps.

• Danfoss FC302 ALARM 35 - Causes & Fix

  29 May, 2026

  ALARM 35 on a Danfoss FC302 means an option fault. Learn the 5 most common causes and the step-by-step repair procedure.

• Danfoss FC302 Alarm 34 - Causes & Fix

  29 May, 2026

  Danfoss FC302 Alarm 34 means fieldbus communication fault. Learn causes, diagnostic steps, and how to fix this VLT drive error.

• Danfoss FC302 ALARM 33 - Causes & Fix

  29 May, 2026

  Danfoss FC302 ALARM 33 (Inrush fault) means too many power-ups in a short time. Learn causes, diagnostic steps, and fixes.

• Danfoss FC302 Alarm 32 - Causes & Fix

  29 May, 2026

  Danfoss FC302 Alarm 32 means motor phase W is missing. Learn what causes it and how to diagnose wiring, motor windings, and drive output.

• Danfoss FC302 ALARM 31 - Causes & Fix

  29 May, 2026

  ALARM 31 on the Danfoss FC302 means motor phase V is missing. Troubleshoot loose wiring, open cables, and failed output stages.

• Danfoss FC302 ALARM 30 - Causes & Fix

  29 May, 2026

  ALARM 30 on the Danfoss FC302 means missing motor phase U. Learn the common causes, diagnostic steps, and parts to fix this fault.

• Danfoss FC302 ALARM 28 - Causes & Fix

  29 May, 2026

  Danfoss FC302 ALARM 28 (Brake Check) means the drive detected a fault in the brake resistor circuit. Learn causes and repair steps.

• Danfoss FC302 ALARM 27 - Causes & Fix

  29 May, 2026

  ALARM 27 on a Danfoss FC302 means brake chopper fault. Learn the exact causes, step-by-step diagnostics, and repair.

• Danfoss FC302 ALARM 26 - Causes & Fix

  29 May, 2026

  ALARM 26 on Danfoss FC302 means brake resistor power limit exceeded. Learn causes, diagnostic steps, and fixes for this VFD fault.

• Danfoss FC302 Alarm 25 - Causes & Fix

  29 May, 2026

  Alarm 25 on a Danfoss FC302 means brake resistor short circuit. Learn what it means, common causes, diagnostic steps, and parts.

• Danfoss FC302 Alarm 24 - Causes & Fix

  29 May, 2026

  Alarm 24 on the Danfoss FC302 drive means Safe Stop is active. Learn how to check external safety circuits, reset interlocks, and clear this fault.

• Danfoss FC302 Alarm 23 - Causes & Fix

  29 May, 2026

  Danfoss FC302 Alarm 23 means internal fan fault. Learn what triggers the warning, how to diagnose fan and sensor issues, and repair steps.

• Danfoss FC302 ALARM 22 - Causes & Fix

  29 May, 2026

  ALARM 22 on a Danfoss FC302 means the hoist mechanical brake did not release or the drive missed torque reference before timeout.

• Danfoss FC302 Alarm 21 - Causes & Fix

  29 May, 2026

  Danfoss FC302 Alarm 21 means a parameter is out of range or invalid. Learn the real causes, step-by-step fix, and when to call a tech.