Partner Academy · EcoBSS / FLEX
Warning
3P HV
W4
meter_Comm_Fail
Energy meter communication failure
Academy field checklist (meter_Comm_Fail) — no EcoBSS service-table row for this bit.
Register map
- Family
- Three-phase HV
- Register
- 553
- Bit
- 3
Field checks
- Check RS485 / meter wiring, baud rate, and Modbus address vs the external meter (e.g. Eastron).
- Confirm CT orientation and that the meter is powered.
- Contact Inversol if the fault returns after a clean power cycle.
FAQ
What does EcoBSS W4 mean?
Energy meter communication failure
What should I check for EcoBSS W4?
- Check RS485 / meter wiring, baud rate, and Modbus address vs the external meter (e.g. Eastron).
- Confirm CT orientation and that the meter is powered.
- 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).