Yaskawa GA800 E82 Fault Code — What It Means
The E82 fault code does not appear in available Yaskawa GA800 troubleshooting documentation or fault code tables. This means either the code displayed is being misread, the drive is from a different Yaskawa series, or the code is model-specific and not documented in standard materials. GA800 drives use alphanumeric fault codes like oH3 for motor overheat or communication alarms for network issues, but E82 is not among the verified codes for this series.
Before attempting any repair, confirm the exact characters shown on the drive keypad or display. Write down the complete model number, serial number, and the fault code exactly as it appears. Check your drive’s printed fault code table or the troubleshooting section of the GA800 manual. If the code still does not match, contact Yaskawa technical support with your drive’s serial number and application details.
Before You Replace Anything
Technicians sometimes replace the control board or entire drive when an unrecognized fault appears. Before ordering parts, verify the exact fault code against the official GA800 fault table and check all field wiring and parameter settings.
Common Causes
- Misread or transposed fault code The displayed code may be oH3, E8Z, or another valid GA800 code that has been transcribed incorrectly.
- Drive from a different Yaskawa series The E82 code may belong to a different Yaskawa VFD family such as the A1000 or V1000, not the GA800.
- Custom or application-specific alarm Some OEM or integrator configurations add custom fault codes through parameter programming that do not appear in standard manuals.
- Corrupted parameter memory A power surge or battery failure can corrupt drive parameters and cause non-standard fault displays.
- Control board firmware issue Older firmware revisions or a failing control board can display garbled or invalid fault codes.
- Communication network alarm misidentified GA800 communication faults often relate to network wiring or controller setup and may be mistaken for other codes if the display is unclear.
Quick Diagnosis
Answer these to narrow it down fast.
Does the drive display show the code clearly and consistently after power cycling?
No: The display may be damaged or the drive may have intermittent power. Check the control power supply and inspect the keypad connector before diagnosing further.
Is the drive model plate confirmed to be a GA800 series?
No: You may have a different Yaskawa drive family. Locate the correct manual for your actual model and cross-reference the fault code there.
Has the drive been configured by an integrator or OEM panel builder?
No: Use the standard Yaskawa GA800 fault code table and proceed with basic wiring and parameter checks.
Step-by-Step Fix
- Safely power down the drive and the entire machine following lockout/tagout procedures to prevent accidental restart or electric shock.
- Record the exact fault code displayed on the keypad, including all letters, numbers, and symbols, along with the drive model number and serial number from the nameplate.
- Consult the GA800 fault code table in the drive manual or download the latest manual from the Yaskawa website and search for the exact code you recorded.
- Inspect all field wiring to the drive, including motor leads, control inputs, Safe Torque Off jumpers, and any communication cables, looking for loose connections or damage.
- Check parameter settings for any recent changes or corruption by reviewing the drive’s history log and comparing critical parameters to your commissioning records.
- Perform a controlled parameter reset if corruption is suspected, then reload your saved parameter set or re-enter configuration values according to the GA800 programming manual.
- Contact Yaskawa technical support with your recorded information if the fault code remains unidentified or the drive does not clear after wiring and parameter checks.
Parts Often Needed
| Part | Notes |
|---|---|
| GA800 Control Board | Amazon | Only order after Yaskawa support confirms board failure and provides the correct part number for your drive’s voltage and frame size. |
| GA800 Operator Keypad | Amazon | Replace if the display is garbled or physically damaged and cannot show fault codes clearly. |
When to Call a Pro
Call a qualified VFD technician or Yaskawa-certified service provider immediately if you cannot locate the fault code in your manual or if the drive does not clear after basic wiring checks. VFD troubleshooting requires knowledge of high-voltage DC bus circuits, parameter programming, and safe isolation procedures. Incorrect diagnosis or parts replacement can damage the drive, the motor, or connected equipment. A professional can use Yaskawa’s DriveWizard software to retrieve detailed fault logs, verify parameter integrity, and contact factory support for unlisted codes. They will also inspect the drive’s internal components, measure DC bus voltage, and test the control board with proper test equipment before recommending parts replacement.
Rough cost: A pro service call runs about $200–500 depending on required parts and service call.