Yaskawa GA800 E24 Fault Code — What It Means
E24 does not appear as a standard fault code in the published Yaskawa GA800 documentation. The GA800 uses a defined set of fault and alarm codes, and E24 is not verified among them. This code may have been misread, abbreviated, or may belong to an option card or external device rather than the base drive. Yaskawa troubleshooting procedures require the exact fault or alarm code, drive model and spec number, serial number, and application history to diagnose the issue correctly.
Before attempting any repair, confirm the exact code shown on the keypad display and compare it to the fault and alarm table in your GA800 manual. The code may be a multi-character sequence that includes E24 as part of a longer identifier, or it may be a non-drive fault from peripheral equipment.
Common Causes
- Misread or abbreviated fault code The actual fault may be a longer alphanumeric sequence, and only part of it was noted.
- Option card or external device alarm The code may originate from a communication card, encoder interface, or connected PLC rather than the drive itself.
- Incorrect drive model assumption The drive may be a different Yaskawa series (such as V1000 or A1000) with its own fault code set.
- Display or keypad malfunction A failing keypad or display can show partial or incorrect fault information.
Step-by-Step Fix
- Record the full fault or alarm code exactly as it appears on the keypad display, including all letters, numbers, and any accompanying text or symbols.
- Locate the drive nameplate and write down the complete model number, spec code, and serial number.
- Consult the GA800 instruction manual fault and alarm code table using the full code you recorded to identify the manufacturer definition.
- Check for option cards or external devices connected to the drive that may generate their own fault codes, and review their documentation separately.
- Power-cycle the drive by disconnecting input power for at least 30 seconds, then re-energize and observe whether the fault reappears or changes.
- Contact Yaskawa technical support with your recorded fault code, model information, serial number, and application details if the code does not match any entry in your manual.
- Follow the manufacturer troubleshooting procedure from the manual once the correct fault code is identified, using the drive’s elementary diagram to isolate the failed section before replacing components.
Parts Often Needed
| Part | Notes |
|---|---|
| GA800 control board | Amazon | Only if confirmed faulty after verifying the correct fault code and following Yaskawa diagnostics. |
| GA800 cooling fan | Amazon | Replacement fan assembly if thermal or ventilation faults are identified in the actual code. |
When to Call a Pro
Call a qualified drives technician or Yaskawa-certified service provider if you cannot locate E24 in your GA800 manual, if the fault reappears after power-cycling, or if you are unfamiliar with VFD elementary diagrams and high-voltage DC bus safety. Professional help is especially important if the drive controls motor-driven equipment in a commercial or industrial process where incorrect troubleshooting can cause equipment damage or safety hazards. Yaskawa technical support can decode ambiguous fault displays and guide you to the correct repair path.