Posts

All the articles I've posted.

• Yaskawa GA800 E21 Fault - Causes & Fix

  30 May, 2026

  E21 on the Yaskawa GA800 signals a Z pulse correction error in the encoder feedback loop. Fix wiring, encoder, or feedback circuit issues.

• Yaskawa GA800 E18 Error - Causes & Fix

  30 May, 2026

  Yaskawa GA800 E18 (Back EMF Error) occurs when induced-voltage tuning results fall outside range. Fix motor data and rerun auto-tune.

• Yaskawa GA800 E17 Fault - Causes & Fix

  30 May, 2026

  E17 is not a standard Yaskawa GA800 fault code. Learn how to identify the correct code and troubleshoot your drive safely.

• Yaskawa GA800 E16 Fault Code - Causes & Fix

  30 May, 2026

  Yaskawa GA800 E16 (oPE16) means Energy Saving Constants Error. Learn how to check parameter ranges and clear this operator fault.

• Yaskawa GA800 E15 Fault - Causes & Fix

  30 May, 2026

  Yaskawa GA800 E15 indicates a communication error on an installed option or control link. Learn how to diagnose and repair this fault.

• Yaskawa GA800 E14 Fault - Causes & Fix

  30 May, 2026

  E14 is not a documented GA800 fault code. Learn how to identify the correct fault, verify your drive model, and follow Yaskawa's reset procedure.

• Yaskawa GA800 E13 Fault Code - Causes & Fix

  30 May, 2026

  E13 is not a documented GA800 fault code. Learn how to verify the actual displayed fault on your Yaskawa GA800 drive and troubleshoot correctly.

• Yaskawa GA800 E12 Fault Code - Causes & Fix

  30 May, 2026

  Yaskawa GA800 E12 (Er-12) is a current detection error. Learn the real causes, step-by-step diagnostics, and repair actions.

• 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.