Partner Academy · EcoBSS / FLEX
Fault
3P HV
F6
SlaveMCU_Fail
Slave MCU failure
Academy field checklist (SlaveMCU_Fail) — no EcoBSS service-table row for this bit.
Register map
- Family
- Three-phase HV
- Register
- 555
- Bit
- 5
Field checks
- Slave MCU fault on HV map — clean restart once; if it returns, escalate for control electronics (do not keep cycling).
- Contact Inversol if the fault returns after a clean power cycle.
FAQ
What does EcoBSS F6 mean?
Slave MCU failure
What should I check for EcoBSS F6?
- Slave MCU fault on HV map — clean restart once; if it returns, escalate for control electronics (do not keep cycling).
- 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).