Partner Academy · EcoBSS / FLEX
Fault
3P HV
F2
DC_Insulation_Failure
DC insulation resistance permanent fault
Academy field checklist (DC_Insulation_Failure) — no EcoBSS service-table row for this bit.
Register map
- Family
- Three-phase HV
- Register
- 555
- Bit
- 1
Field checks
- Measure PV/DC insulation to earth (megger); look for damaged cable or wet MC4s.
- Do not raise trip thresholds to hide a real earth fault.
- Isolate strings one by one to find the weak string.
- Contact Inversol if the fault returns after a clean power cycle.
FAQ
What does EcoBSS F2 mean?
DC insulation resistance permanent fault
What should I check for EcoBSS F2?
- Measure PV/DC insulation to earth (megger); look for damaged cable or wet MC4s.
- Do not raise trip thresholds to hide a real earth fault.
- Isolate strings one by one to find the weak string.
- 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).