CauseBattery pack voltage exceeded the upper protection threshold.
Recommended fixRestart the unit. if the error persists, contact the repair center.
Source:LUX-Y-4828048300LG01-Lithium-Battery-User-Guide.pdf· page 8
Felicity LUX-Y-48280LG01 Error Codes: Causes & Fixes (14 codes)
This is the complete fault table for the Felicity LUX-Y-48280LG01 Battery family — 14 codes shared by 2 model numbers, transcribed from the official manual. 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.
Also coversLUX-Y-48300LG01
Last checked against the official manuals on July 10, 2026.
How to read the severity labels
- Fault(14)— operation stops until cleared
Fault codes (14)operation stops until cleared
CauseBattery pack voltage fell below the lower protection threshold.
Recommended fixRestart the unit. if the error persists, contact the repair center.
Source:LUX-Y-4828048300LG01-Lithium-Battery-User-Guide.pdf· page 8
CauseAn individual cell voltage exceeded the upper protection threshold.
Recommended fixRestart the unit. if the error persists, contact the repair center.
Source:LUX-Y-4828048300LG01-Lithium-Battery-User-Guide.pdf· page 8
CauseAn individual cell voltage fell below the lower protection threshold.
Recommended fixRestart the unit. if the error persists, contact the repair center.
Source:LUX-Y-4828048300LG01-Lithium-Battery-User-Guide.pdf· page 8
CauseCharging current exceeded the protection threshold.
Recommended fixRestart the unit. if the error persists, contact the repair center.
Source:LUX-Y-4828048300LG01-Lithium-Battery-User-Guide.pdf· page 8
CauseDischarging current exceeded the protection threshold.
Recommended fixRestart the unit. if the error persists, contact the repair center.
Source:LUX-Y-4828048300LG01-Lithium-Battery-User-Guide.pdf· page 8
CauseThe inner temperature is over the limitation. Check whether the ambient temperature is too high.
Recommended fixCheck whether the ambient temperature is too high; allow the unit to cool. if the error persists, return to repair center.
Source:LUX-Y-4828048300LG01-Lithium-Battery-User-Guide.pdf· page 8
CauseThe internal temperature is lower than the limit range. Check whether the ambient temperature is too low.
Recommended fixCheck whether the ambient temperature is too low; warm the environment. if the error persists, return to repair center.
Source:LUX-Y-4828048300LG01-Lithium-Battery-User-Guide.pdf· page 8
CauseAn individual cell temperature exceeded the upper protection threshold.
Recommended fixRestart the unit. if the error persists, contact the repair center.
Source:LUX-Y-4828048300LG01-Lithium-Battery-User-Guide.pdf· page 8
CauseAn individual cell temperature fell below the lower protection threshold.
Recommended fixRestart the unit. if the error persists, contact the repair center.
Source:LUX-Y-4828048300LG01-Lithium-Battery-User-Guide.pdf· page 8
CauseBMS detected an abnormal reading from the current-sampling circuit.
Recommended fixRestart the unit. if the error persists, contact the repair center.
Source:LUX-Y-4828048300LG01-Lithium-Battery-User-Guide.pdf· page 8
CauseBMS detected abnormal output impedance (e.g. loose/poor connection at output terminals).
Recommended fixRestart the unit. if the error persists, contact the repair center.
Source:LUX-Y-4828048300LG01-Lithium-Battery-User-Guide.pdf· page 8
CauseParallel-connection condition not satisfied. Possible causes: (1) a single unit is configured as part of a parallel system; (2) wires are mis-connected during parallel installation.
Recommended fix1. Please check if single unit is installed in 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-Y-4828048300LG01-Lithium-Battery-User-Guide.pdf· page 8
CauseNo output from the battery pack. Possible causes: circuit breaker open, or fuse 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-Y-4828048300LG01-Lithium-Battery-User-Guide.pdf· page 8
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Common questions about LUX-Y-48280LG01 error codes
- What is the difference between a fault and a warning on the LUX-Y-48280LG01?
- A fault puts the unit into protection and stops normal operation — this page lists 14 of them for the LUX-Y-48280LG01. The LUX-Y-48280LG01 manual defines no separate warning table — every listed code stops operation. Resolve the cause of a fault before restarting; warnings can usually be cleared while the unit runs.
- Which model numbers does this page cover?
- The LUX-Y-48280LG01 shares its firmware and fault table with 1 other model number: LUX-Y-48300LG01. If your unit is any of these, every code on this page applies to it.
- Where do these codes come from?
- Every entry was transcribed from LUX-Y-4828048300LG01-Lithium-Battery-User-Guide.pdf — Felicity's official documentation. Each row cites its source manual (and page where printed), so you can verify the wording before acting on it.
Compiled from official Felicity user manuals. Always consult your device manual and a qualified technician before performing repairs.