What it means
Battery cluster cell overtemperature alarm (level 2)
Cause: Cell maximum temperature > 55°C.
How to fix it
- Send faults externally and limit power.
- Recovers when Temp_max < 50°C.
Source: FLS-ES232LC-S.pdf
Felicity ESS error 0x1012
Battery cluster cell overtemperature alarm (level 2)
Fault — the ESS unit enters fault protection and stops normal operation until the fault is cleared — how it is shown (LED pattern or display code) depends on the model.
Frequently asked questions
- What does error 0x1012 mean on a Felicity ESS?
- 0x1012 means: Battery cluster cell overtemperature alarm (level 2). Cell maximum temperature > 55°C.
- Is error 0x1012 a fault or a warning?
- 0x1012 is a fault code: the ESS unit enters protection and stops normal operation until it is cleared.
- How do I clear or fix error 0x1012?
- Send faults externally and limit power. Recovers when Temp_max < 50°C.
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.