What it means
Battery cluster cell overvoltage alarm (level 1)
Cause: Cell voltage > 3,650 mV.
How to fix it
- Send faults externally.
- Recovers when < 3,600 mV.
Source: fls-es232lc-g-2-fls-es232lc-s-user-guide-en.pdf
Felicity ESS error 0x1031
Battery cluster cell overvoltage alarm (level 1)
Warning — a protection warning — the ESS unit keeps running, but deal with the cause before it escalates.
Frequently asked questions
What does error 0x1031 mean on a Felicity ESS?
0x1031 means: Battery cluster cell overvoltage alarm (level 1). Cell voltage > 3,650 mV.
Is error 0x1031 a fault or a warning?
0x1031 is a warning: the unit keeps running. Fix the underlying condition before it escalates.
How do I clear or fix error 0x1031?
Send faults externally. Recovers when < 3,600 mV.
Related error codes
Other codes on the FLS-ES232LC-S
- 0x10A1WarningCell voltage accumulation overvoltage alarm in battery cluster (level 1).
- 0x10A2FaultCell voltage accumulation overvoltage alarm in battery cluster (level 2).
- 0x10A3CriticalCell voltage accumulation overvoltage alarm in battery cluster (level 3).
- 0x10B1WarningCell voltage accumulation undervoltage alarm in battery cluster (level 1).
- 0x10B2FaultCell voltage accumulation undervoltage alarm in battery cluster (level 2).
- 0x10B3CriticalCell voltage accumulation undervoltage alarm in battery cluster (level 3).
Prefer the full written guide? Read the complete Felicity inverter error-code guide
Compiled from official Felicity user manuals. Always consult your device manual and a qualified technician before performing repairs.