Abnormal current sampling
Fault — the battery 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.
Severity differs by model — check your model below.
The exact meaning depends on your model:
Abnormal current sampling — Abnormal current sampling fault. LED pattern: LED1 ON, LED2 ON, LED3 OFF, LED4 ON.
Cause: The BMS current sensor or its sampling circuit returned an abnormal reading. This is an internal hardware fault in the current-measurement path, not an installation issue.
Source: Felicitysolar FLA12100 12.5Kwh Battery Energy Storage System User Manual.pdf, p.1
Abnormal current sampling — Current sampling/measurement circuit reported an abnormal reading.
Cause: The BMS current sensor or its sampling circuit returned an abnormal reading. This is an internal hardware fault in the current-measurement path, not an installation issue.
Source: Felicitysolar FLA48200 48V 200Ah 10kWh Lithium Phosphate Battery User Manual.pdf, p.13
Abnormal current sampling — BMS detected an abnormal reading from the current sampling circuit.
Cause: The BMS current sensor or its sampling circuit returned an abnormal reading. This is an internal hardware fault in the current-measurement path, not an installation issue.
Source: 6peluqppy_66a93554057c8.pdf, p.13
C11 — Abnormal current sampling.
Cause: The BMS current sensor or its sampling circuit returned an abnormal reading. This is an internal hardware fault in the current-measurement path, not an installation issue.
Source: FLA48250-EU_Manual.pdf, p.8
Also applies to:HE-GF-FLA-48500
Abnormal current sampling — Internal current measurement / sampling circuit abnormal.
Cause: Hardware/sensor abnormality in current sampling path.
Source: felicitysolar FLA48500 LiFePO4 Battery System for Households User Guide.pdf · HE-GF-FLA-48500 Manual_20250327_EN.pdf
Abnormal current sampling — Abnormal current sampling. The BMS current measurement returned an out-of-range or invalid reading.
Cause: Internal current sensor or sampling circuit reported abnormal values.
Source: Benutzerhandbuch - Felicity FLS48100SG2.pdf
Abnormal current sampling — BMS current-sensor / sampling diagnostic failure displayed on the LCD BMS fault code / flag screen (section 4.4); the pack cannot reliably measure charge / discharge current.
Cause: Internal current-sensor or sampling-circuit fault on the BMS board.
Restart the unit, if the error persists, contact the repair center.
Source: 358-010291-07.pdf, p.9
Also applies to:LPBF48100-H
Abnormal current sampling — BMS internal current measurement circuit fault.
Cause: Current sensor / sampling circuit malfunction (internal hardware fault).
Restart the unit; if the error persists, contact the repair center.
Source: Manual-LPBF48200-H.pdf, p.10
C11
Cause: Abnormal current sampling — the internal current sensor or sampling circuit reported abnormal values (internal BMS hardware fault).
Restart the unit, if the error persists, contact the repair center.
Source: Felicitysolar LPBF48350 17.5kWh 48V Solar Battery Pack with BMS User Guide.pdf
Also applies to:LUX-Y-48280LG01LUX-Y-48300LG01
Abnormal current sampling
Cause: BMS detected an abnormal reading from the current-sampling circuit.
Source: LUX-E-48100LG03-Lithium-Battery-User-Guide.pdf, p.13 · LUX-Y-4828048300LG01-Lithium-Battery-User-Guide.pdf, p.8
Also applies to:LUX-E-48230LG03LUX-E-48250LG03
C11
Cause: Abnormal current sampling — the internal current sensor or sampling circuit reported abnormal values (internal BMS hardware fault).
Source: LUX-E-48200LG03-Lithium-Battery-User-Guide.pdf, p.13 · LUX-E-48230.250LG03-Lithium-Battery-User-Guide.pdf
Also applies to:LUX-X-48050LCG01LUX-X-48050LMG01LUX-X-48050LG01M2LUX-X-48050LG01M3LUX-X-48050LG01M4
C11 — Abnormal current sampling.
Cause: The internal current sensor or sampling circuit reported abnormal values — an internal BMS hardware fault.
Restart the unit, if the error persists, contact the repair center.
Source: LUX-X-48050LG01-low-voltage-battery-user-guide.pdf, p.17
Also applies to:LUX-X-48100LCG01LUX-X-48100LMG01
Abnormal current sampling — Internal current sensor / sampling circuit returned an abnormal reading.
Cause: The internal current sensor or sampling circuit reported abnormal values — an internal BMS hardware fault.
Restart the unit; if the error persists, contact the repair center.
Source: LUX-X-48100LG01-Litium-Battery-User-Guide.pdf, p.17
Also applies to:LUX-X-48100LCG01-USLUX-X-48100LMG01-USLUX-X-48100LG01-USM2LUX-X-48100LG01-USM3LUX-X-48100LG01-USM4LUX-X-48100LG01-USM5LUX-X-48100LG01-USM6LUX-X-48100LG01-USM7+1
Abnormal current sampling — Internal current sensor / sampling circuit returned an abnormal reading.
Cause: The internal current sensor or sampling circuit reported abnormal values — an internal BMS hardware fault.
Restart the unit, if the error persists, contact the repair center.
Source: 358-S010024-03LUX-X-48100LG01-User-manual_compressed.pdf, p.23
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.