Partner Academy · EcoBSS / FLEX
Fault
3P HV
F19
Tz_Integ_Fault
Hardware integration / MCU fault
Academy field checklist (Tz_Integ_Fault) — no EcoBSS service-table row for this bit.
Register map
- Family
- Three-phase HV
- Register
- 556
- Bit
- 2
Field checks
- Clean power cycle once; if F19 returns immediately, treat as MCU / hardware integration — escalate, do not keep cycling.
- Contact Inversol if the fault returns after a clean power cycle.
FAQ
What does EcoBSS F19 mean?
Hardware integration / MCU fault
What should I check for EcoBSS F19?
- Clean power cycle once; if F19 returns immediately, treat as MCU / hardware integration — escalate, 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).