This is the complete fault table for the Felicity LUX-E-48200LG03 Battery — all 14 codes from the official manual on one page. On this Felicity device, a fault code means the unit has entered protection and stopped normal operation; a warning leaves it running. The exact indication (LED pattern or display code) is listed per code below.
Last checked against the official manuals on July 10, 2026.
CauseBattery overvoltage — total pack voltage exceeded the upper protection threshold; charging continued past the over-voltage protection point.
Recommended fixRestart the unit. if the error persists, contact the repair center.
Source:LUX-E-48200LG03-Lithium-Battery-User-Guide.pdf· page 12
CauseBattery undervoltage — total pack voltage fell below the lower protection threshold (over-discharge).
Recommended fixRestart the unit. if the error persists, contact the repair center.
Source:LUX-E-48200LG03-Lithium-Battery-User-Guide.pdf· page 12
CauseCell overvoltage — a single cell reached the protection value during charging, typically from cell imbalance letting one cell drift above its safe ceiling.
Recommended fixRestart the unit. if the error persists, contact the repair center.
Source:LUX-E-48200LG03-Lithium-Battery-User-Guide.pdf· page 12
CauseCell undervoltage — a single cell fell below the protection value during discharge, from deep discharge or a weak, aged cell.
Recommended fixRestart the unit. if the error persists, contact the repair center.
Source:LUX-E-48200LG03-Lithium-Battery-User-Guide.pdf· page 12
CauseCharge overcurrent — charging current exceeded the protection trigger value; the inverter or charger charge-current setting is too high for this pack.
Recommended fixRestart the unit. if the error persists, contact the repair center.
Source:LUX-E-48200LG03-Lithium-Battery-User-Guide.pdf· page 12
CauseDischarge overcurrent — discharging current exceeded the protection trigger value; the connected load or inverter discharge current is too high.
Recommended fixRestart the unit. if the error persists, contact the repair center.
Source:LUX-E-48200LG03-Lithium-Battery-User-Guide.pdf· page 12
Cause1. The inner temperature is over the limitation. 2. Check whether the ambient temperature is too high.
Recommended fix1. The inner temperature is over the limitation. 2. Check whether the ambient temperature is too high.
Source:LUX-E-48200LG03-Lithium-Battery-User-Guide.pdf· page 12
Cause1. The internal temperature is lower than the limit range. 2. Check whether the ambient temperature is too low.
Recommended fix1. The internal temperature is lower than the limit range. 2. Check whether the ambient temperature is too low.
Source:LUX-E-48200LG03-Lithium-Battery-User-Guide.pdf· page 12
CauseCell overtemperature — a battery cell exceeded the upper temperature protection limit, possibly from excessive ambient temperature, high current, or impaired ventilation.
Recommended fixRestart the unit. if the error persists, contact the repair center.
Source:LUX-E-48200LG03-Lithium-Battery-User-Guide.pdf· page 13
CauseCell undertemperature — a battery cell fell below the lower temperature protection limit; the ambient temperature is too low.
Recommended fixRestart the unit. if the error persists, contact the repair center.
Source:LUX-E-48200LG03-Lithium-Battery-User-Guide.pdf· page 13
CauseAbnormal current sampling — the internal current sensor or sampling circuit reported abnormal values (internal BMS hardware fault).
Recommended fixRestart the unit. if the error persists, contact the repair center.
Source:LUX-E-48200LG03-Lithium-Battery-User-Guide.pdf· page 13
CauseAbnormal output impedance — the output impedance is outside the normal range, possibly a loose connection, oxidised terminal, or unusual load.
Recommended fixRestart the unit. if the error persists, contact the repair center.
Source:LUX-E-48200LG03-Lithium-Battery-User-Guide.pdf· page 13
CauseParallel failed — a single unit is installed to a parallel system, or the wiring between paralleled units is incorrect or incomplete.
Recommended fix1. Please check if single unit is installed to parallel system. 2. if this error happens during parallel installation, please check wires connection. if they are connected correctly, please finish parallel installation first, and then restart the unit. 3. if the problem remains, please contact your installer.
Source:LUX-E-48200LG03-Lithium-Battery-User-Guide.pdf· page 13
CauseOutput loss — no output from the battery pack; the circuit breaker may be open or the fuse may be blown.
Recommended fix1. Please check whether the circuit breaker is closed. 2. Please check whether the fuse is normal. 3. Restart the unit. if the error persists, contact the repair center.
Source:LUX-E-48200LG03-Lithium-Battery-User-Guide.pdf· page 13
Send us the code on your screen and a Felicity technician will reply with the exact steps for your unit. Support is free for life — a first diagnosis never needs a callout.
Compiled from official Felicity user manuals. Always consult your device manual and a qualified technician before performing repairs.