Yaskawa GA800 F015 Fault — What It Means
The fault code F015 does not appear in any Yaskawa GA800 documentation available. Yaskawa GA800 drives use two-letter alphanumeric fault codes (such as OV for overvoltage, SC for short circuit, LU for load unbalance, or GF for ground fault) rather than numeric “F” codes. The F015 code is specific to Schneider Electric drives (ATV310, ATV610, and ATV31C series) where it indicates “3 Output phases loss” meaning all three output phases to the motor are missing.
If you see F015 on what you believe is a Yaskawa GA800, either the drive has been misidentified and is actually a Schneider model, the code is being read incorrectly from the display, or there is cross-brand confusion in the documentation. Yaskawa’s maintenance manual for the GA800 explicitly states the drive does not support field repairs beyond fan and control board replacement and does not list F015 as a valid fault. Contact Yaskawa Technical Support at 1.800.927.5292 (Option 2 then Option 1 for Drive Support) or email repair@yaskawa.com to verify the actual fault code and obtain the GA800 Technical Manual for your specific model.
Before You Replace Anything
Technicians may assume F015 is a Yaskawa fault and replace output boards or motor cables. First verify the drive brand nameplate and consult the correct manufacturer’s fault code list before ordering any parts.
Common Causes
- Drive brand misidentification (~50%) The drive is actually a Schneider Electric ATV310 or ATV610 model and F015 correctly indicates loss of all three output phases to the motor.
- Incorrect fault code reading (~30%) The display shows a different Yaskawa two-letter code (such as OL, UV, or another valid GA800 fault) that is being misread or transcribed as F015.
- Cross-referenced documentation error (~15%) A technician is using a Schneider manual or fault code chart while servicing a Yaskawa drive, leading to confusion about which codes apply.
- Display or keypad malfunction (~5%) The operator keypad or display module is failing and showing garbled or incorrect fault codes that do not match the GA800 fault list.
Quick Diagnosis
Answer these to narrow it down fast.
Does the drive nameplate say Schneider Electric, ATV310, or ATV610?
No: Confirm the nameplate says Yaskawa GA800 and proceed to verify the actual fault code displayed.
Does the fault display show exactly F015 with those characters?
No: Write down the exact two-letter code shown and look it up in the Yaskawa GA800 Technical Manual fault code section.
Do you have access to the Yaskawa GA800 Technical Manual for your drive model?
No: Contact Yaskawa Technical Support at repair@yaskawa.com or call 1.800.927.5292 to request the technical manual and verify the fault code.
Step-by-Step Fix
- Power down the drive and lock out the disconnect to prevent accidental energization during inspection.
- Verify the drive manufacturer by reading the nameplate on the front or side of the unit and confirm it says Yaskawa (not Schneider Electric, Altivar, or ATV).
- Photograph the fault display showing the exact alphanumeric code as it appears on the operator keypad or LCD panel.
- Consult the Yaskawa GA800 Technical Manual (document number beginning with SIEPC) for your specific model to cross-reference the displayed fault code.
- Contact Yaskawa Technical Support at 1.800.927.5292 (select Option 2 for Technical Support, then Option 1 for Drives) or email repair@yaskawa.com with the drive model number, serial number, and fault code photograph.
- If the drive is confirmed to be a Schneider ATV model, follow Schneider’s F015 troubleshooting: check all motor cable connections, verify the motor is connected and draws at least 6 percent of drive rated current, inspect output contactors for open circuits, and test output phase continuity.
- Do not attempt field repairs beyond fan or control board replacement on Yaskawa GA800 drives as the manufacturer explicitly does not support other component-level repairs and recommends factory service for internal faults.
Parts Often Needed
| Part | Notes |
|---|---|
| Yaskawa GA800 Control Board | Amazon | Only if Yaskawa Technical Support confirms the fault is control-board related and the drive is confirmed as a GA800 model. |
| Yaskawa GA800 Cooling Fan | Amazon | User-replaceable part per the GA800 maintenance manual if overheating is confirmed as the root cause. |
When to Call a Pro
Call a professional immediately if you cannot confirm the drive brand or the fault code does not match any entry in the manufacturer’s technical manual. Variable frequency drives operate at lethal voltages (typically 230V to 480V three-phase) and contain large DC bus capacitors that retain charge even after power is removed. Only qualified electricians or drive technicians should open the drive enclosure, measure internal voltages, or replace components. Yaskawa explicitly recommends contacting their technical support or an authorized service center for any fault that cannot be resolved by checking external connections or resetting the drive. If the drive is actually a Schneider model showing F015, a professional should verify motor cable integrity, measure output phase currents, and adjust parameters 605, 310, 304, 305, and 318 as outlined in Schneider’s service documentation.
Rough cost: A pro service call runs about $200-500 for diagnostic service and fault code verification.