Partner Academy · EcoBSS / FLEX
Fault
3P LV
F38
AC_Curr_Unbalance_Fault
AC three-phase current unbalance
Academy field checklist (AC_Curr_Unbalance_Fault) — no EcoBSS service-table row for this bit.
Register map
- Family
- Three-phase LV (FLEX 3L)
- Register
- 557
- Bit
- 5
Field checks
- Three-phase current unbalance — rebalance site loads across L1/L2/L3; check CT wiring per phase.
- FLEX asymmetry is allowed within rating — still find extreme single-phase hogging.
- Contact Inversol if the fault returns after a clean power cycle.
FAQ
What does EcoBSS F38 mean?
AC three-phase current unbalance
What should I check for EcoBSS F38?
- Three-phase current unbalance — rebalance site loads across L1/L2/L3; check CT wiring per phase.
- FLEX asymmetry is allowed within rating — still find extreme single-phase hogging.
- Contact Inversol if the fault returns after a clean power cycle.
When should I contact Inversol?
Confirm LV vs HV family on the nameplate, complete the field checks, then contact Inversol with model, SN, family, and a photo if the code returns after a clean power cycle.
Partner lookup from EcoBSS Flex register map V1.2 — not a substitute for the official service manual or live measurements. Always match the inverter family (3P LV / FLEX 3L vs 3P HV).