Partner Academy · EcoBSS / FLEX
Fault
3P HV
F23
Tz_GFCI_OC_Fault
Instant AC leakage overcurrent fault
EcoBSS service: instantaneous AC leakage overcurrent (GFCI OC).
Register map
- Family
- Three-phase HV
- Register
- 556
- Bit
- 6
Field checks
- Check PV-side cable earthing.
- Restart the system 2–3 times.
- Contact Inversol if the fault does not clear.
FAQ
What does EcoBSS F23 mean?
Instant AC leakage overcurrent fault
What should I check for EcoBSS F23?
- Check PV-side cable earthing.
- Restart the system 2–3 times.
- Contact Inversol if the fault does not clear.
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).