Partner Academy · EcoBSS / FLEX
Fault
3P LV
F55
DC_VoltHigh_Fault
DC bus voltage too high
EcoBSS service: DC BUS / energy-storage voltage too high.
Register map
- Family
- Three-phase LV (FLEX 3L)
- Register
- 558
- Bit
- 6
Field checks
- Check that energy-storage voltage is not too high.
- Check PV input voltage and ensure it is within the allowed range.
- Contact Inversol if the fault does not clear.
FAQ
What does EcoBSS F55 mean?
DC bus voltage too high
What should I check for EcoBSS F55?
- Check that energy-storage voltage is not too high.
- Check PV input voltage and ensure it is within the allowed range.
- 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).