Partner Academy · EcoBSS / FLEX
Fault
3P LV
F8
GFDI_Relay_Failure
GFDI relay / contactor fault
Academy field checklist (GFDI_Relay_Failure) — no EcoBSS service-table row for this bit.
Register map
- Family
- Three-phase LV (FLEX 3L)
- Register
- 555
- Bit
- 7
Field checks
- Check GFDI / safety contactor feedback wiring and that the contactor actuates.
- Do not bypass safety relays.
- Contact Inversol if the fault returns after a clean power cycle.
FAQ
What does EcoBSS F8 mean?
GFDI relay / contactor fault
What should I check for EcoBSS F8?
- Check GFDI / safety contactor feedback wiring and that the contactor actuates.
- Do not bypass safety relays.
- 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).