Felicity Solar FLA48500 51.2V 25kWh LiFePO4 Battery
- Nominal Energy
- 25 kWh
- Nominal Capacity
- 500 Ah
- Nominal Voltage
- 51.2 V
- Cycle Life
- >6000
Price incl. VATAED 12,037
Felicity HE-GF-FLA-48500 Error Codes: Full List & Fixes
This is the complete fault table for the Felicity HE-GF-FLA-48500 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 coversFLA48500
Last checked against the official manuals on 10 July 2026.
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How to read the severity labels
- Fault(14)— operation stops until cleared
Fault codes (14)operation stops until cleared
Battery overvoltage protection triggered (pack-level voltage exceeded threshold).
CauseBattery pack voltage above operating limit (operating range 44.8-57.6V; max charging voltage 57.6V).
Recommended fixRestart the unit. if the error persists, contact the repair center.
Source:HE-GF-FLA-48500 Manual_20250327_EN.pdf
Battery undervoltage protection triggered (pack-level voltage below threshold).
CauseBattery pack voltage below cut-off (cut-off voltage 48V); over-discharge condition.
Recommended fixRestart the unit. if the error persists, contact the repair center.
Source:HE-GF-FLA-48500 Manual_20250327_EN.pdf
Individual cell overvoltage protection triggered.
CauseOne or more cells exceeded the per-cell upper voltage limit.
Recommended fixRestart the unit. if the error persists, contact the repair center.
Source:HE-GF-FLA-48500 Manual_20250327_EN.pdf
Individual cell undervoltage protection triggered.
CauseOne or more cells dropped below the per-cell lower voltage limit.
Recommended fixRestart the unit. if the error persists, contact the repair center.
Source:HE-GF-FLA-48500 Manual_20250327_EN.pdf
Charging current exceeded the allowable limit.
CauseCharge current above recommended (≤200A continuous, 300A 15s peak).
Recommended fixRestart the unit. if the error persists, contact the repair center.
Source:HE-GF-FLA-48500 Manual_20250327_EN.pdf
Discharging current exceeded the allowable limit.
CauseDischarge current above recommended (≤200A continuous, 300A 15s peak).
Recommended fixRestart the unit. if the error persists, contact the repair center.
Source:HE-GF-FLA-48500 Manual_20250327_EN.pdf
MOSFET (BMS power switch) over-temperature protection.
Cause1. The inner temperature is over the limitation. 2. Check whether the ambient temperature is too high.
Recommended fixReduce ambient temperature / improve ventilation; restart the unit. if the error persists, return to repair center.
Source:HE-GF-FLA-48500 Manual_20250327_EN.pdf
MOSFET (BMS power switch) under-temperature protection.
Cause1. The internal temperature is lower than the limit range. 2. Check whether the ambient temperature is too low.
Recommended fixRaise ambient temperature into operating range (charging 0-55°C; discharging -20-55°C); restart the unit. if the error persists, return to repair center.
Source:HE-GF-FLA-48500 Manual_20250327_EN.pdf
Battery cell over-temperature protection triggered.
CauseCell temperature exceeded upper limit (charging temperature range 0-55°C, discharging -20-55°C).
Recommended fixRestart the unit. if the error persists, contact the repair center.
Source:HE-GF-FLA-48500 Manual_20250327_EN.pdf
Battery cell under-temperature protection triggered.
CauseCell temperature below lower limit.
Recommended fixRestart the unit. if the error persists, contact the repair center.
Source:HE-GF-FLA-48500 Manual_20250327_EN.pdf
Internal current measurement / sampling circuit abnormal.
CauseHardware/sensor abnormality in current sampling path.
Recommended fixRestart the unit. if the error persists, contact the repair center.
Source:HE-GF-FLA-48500 Manual_20250327_EN.pdf
Output impedance abnormal.
CauseAbnormal impedance detected on output (possible bad connection, contactor or wiring issue).
Recommended fixRestart the unit. if the error persists, contact the repair center.
Source:HE-GF-FLA-48500 Manual_20250327_EN.pdf
Parallel connection / parallel-mode start-up failed.
CauseParallel condition not satisfied (e.g. pack-to-pack voltage difference ≥3V, or wiring issue between paralleled units).
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:HE-GF-FLA-48500 Manual_20250327_EN.pdf
Output loss / no output detected.
CauseBreaker open, blown fuse, or output path interrupted.
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:HE-GF-FLA-48500 Manual_20250327_EN.pdf
Still seeing a code on your HE-GF-FLA-48500?
Send us the code on your screen and a Felicity technician will reply with the exact steps for your unit. If the unit needs replacing, order it online.
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Common questions about HE-GF-FLA-48500 error codes
- What is the difference between a fault and a warning on the HE-GF-FLA-48500?
- A fault puts the unit into protection and stops normal operation — this page lists 14 of them for the HE-GF-FLA-48500. The HE-GF-FLA-48500 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 HE-GF-FLA-48500 shares its firmware and fault table with 1 other model number: FLA48500. 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 HE-GF-FLA-48500 Manual_20250327_EN.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.