Allen-Bradley PowerFlex 525 VFD
Allen-Bradley PowerFlex 525 VFD code F038: F038 Phase U to Gnd
The drive shut down because it detected a phase to ground fault on the U phase going to the motor.
- Code
- F038
- Name
- F038 Phase U to Gnd
- Controller
- Allen-Bradley PowerFlex 525 VFD
- Type
- Ground fault
- What it does
- Fault: the equipment trips and stops
- Risk
- YELLOW Booth plays by its own rules
- Reset
- Needs a manual reset
- Source
- The manufacturer's manual (subscribers see which manual and page)
Updated July 22, 2026
How to fix it
Subscribers get:
- What to do next, in plain words
- Which manufacturer manual it comes from, linked
- The 3 common causes listed for this code
- The step by step check for this problem, one check at a time
- Booking a live video call with Ben, a master booth technician ($250/hr, paid per call)
Questions about this code
What does Allen-Bradley PowerFlex 525 VFD code F038 mean?
The drive shut down because it detected a phase to ground fault on the U phase going to the motor.
Is Allen-Bradley PowerFlex 525 VFD code F038 dangerous?
It is graded yellow: not hard, but a booth does it differently than the gear most techs know, so follow the checks in order.
How do I fix Allen-Bradley PowerFlex 525 VFD code F038?
The manual's fix and the step by step check for this code are in WERCS Diagnose, plans from $49 a month. For help right now, WERCS answers 24/7 at (877) 489-3727.
Other Allen-Bradley PowerFlex 525 VFD codes
F012 · F012 HW OverCurrentF013 · F013 Ground FaultF021 · F021 Output Ph LossF029 · F029 Analog In LossF041 · F041 Phase UV ShortF059 · F059 Safety OpenF070 · F070 Power UnitF081 · F081 DSI Comm Loss
All 16 Allen-Bradley PowerFlex 525 VFD codes · Every fault code