The Felicity LPBF24200-M is a Battery unit covered by a shared firmware family that includes 5 variants. The error codes listed below apply to every variant in this family — LPBF24200-M, LPBF48150-M, LPBF48150-P, LPBF48200-M and 1 others. If your unit's exact model number isn't shown in the title but is listed in the "also covers" tags, this is the correct reference page.
Each row below shows an error code, its severity, and a brief description. Click any row to expand the full cause and the recommended fix. The severity dot tells you whether the unit will keep operating (warning), derate (fault), or trip offline (critical). For codes that require an authorized service partner, the recommended-fix block says so explicitly.
BMS / electronics under-temperature protection has tripped.
Ambient temperature below the BMS operating range.
Move the battery to a warmer environment; do not operate below 0 degC for charging. Allow the BMS to warm before resuming use.
Felicitysolar LPBF24200-M LiFePO4 Battery System for Households User Guide.pdf · page 9One or more individual cells have fallen below the lower cell-voltage protection limit.
Deep discharge or a weak/aged cell pulling below the under-voltage threshold.
Stop the load and recharge as soon as possible. if a single cell repeatedly trips the protection, contact the supplier for service.
Felicitysolar LPBF24200-M LiFePO4 Battery System for Households User Guide.pdf · page 9Pack under-voltage protection has tripped; output is disabled.
Pack voltage fell below the BMS under-voltage protection threshold during discharge.
Stop the load immediately and recharge the battery as soon as mains or solar is available. Do not attempt repeated activation cycles on an over-discharged pack.
Felicitysolar LPBF24200-M LiFePO4 Battery System for Households User Guide.pdf · page 9Cell pack under-temperature protection has tripped.
Cell temperature below the allowed charging range (0 degC) or discharging range (-20 degC).
Warm the battery to within the operating range before resuming use. Do not install in environments below 0 degC.
Felicitysolar LPBF24200-M LiFePO4 Battery System for Households User Guide.pdf · page 9Discharge over-current protection has tripped; output is disabled.
Connected load drew more current than the recommended discharge limit (≤80 A) or sustained the 120 A 15 s peak too long, or a short-circuit on the DC bus.
Remove or reduce the load, check for short circuits on the output wiring, and restart the pack. For loads above 6 kVA install at least 2 packs in parallel.
Felicitysolar LPBF24200-M LiFePO4 Battery System for Households User Guide.pdf · page 9Pack over-voltage protection has tripped; output is disabled.
Pack voltage exceeded the BMS over-voltage protection threshold during charging.
Disconnect the charging source, verify charge-voltage settings, and allow the pack voltage to fall before re-enabling output.
Felicitysolar LPBF24200-M LiFePO4 Battery System for Households User Guide.pdf · page 9Cell pack over-temperature protection has tripped.
Cells heated above the safe operating temperature (charging range 0-55 degC, discharging range -20-60 degC per spec).
Stop charging/discharging, let the pack cool, and improve ventilation. if the fault persists at normal ambient, contact the supplier.
Felicitysolar LPBF24200-M LiFePO4 Battery System for Households User Guide.pdf · page 9Charging over-current protection has tripped.
Charge current exceeded the recommended limit (e.g. >80 A on LPBF24200-M / LPBF48200-M/P) or the 15 s 120 A maximum for too long.
Reduce the charge current at the charger / inverter to within the recommended setting in section 2.4. For systems above 6 kVA at least 2 packs in parallel are required.
Felicitysolar LPBF24200-M LiFePO4 Battery System for Households User Guide.pdf · page 9One or more individual cells have exceeded the upper cell-voltage protection limit.
Cell imbalance during charging, or a charger setting that allows individual cells to drift above their safe ceiling.
Stop charging, allow the BMS to balance, and review charger settings. if the condition persists the pack may need service.
Felicitysolar LPBF24200-M LiFePO4 Battery System for Households User Guide.pdf · page 9BMS current-sensor diagnostic failure; the pack cannot reliably measure charge/discharge current.
Internal current sensor fault or wiring problem on the BMS board (text in manual: 'CURRENT SENSOR ABNOMAL' [sic]).
Power-cycle the pack. if the fault persists do not continue to use the unit; contact a qualified service technician — section 1.3 warns that only qualified service persons may service the device.
Felicitysolar LPBF24200-M LiFePO4 Battery System for Households User Guide.pdf · page 9BMS / electronics over-temperature protection has tripped.
Insufficient ventilation around the unit, ambient temperature too high, or sustained high charge/discharge current.
Stop charging/discharging and let the unit cool. Improve ventilation and ensure the ambient temperature is within 0-45 degC for installation per section 3.2.
Felicitysolar LPBF24200-M LiFePO4 Battery System for Households User Guide.pdf · page 9Pack-level battery voltage is below the lower threshold (under-voltage / low-pack warning).
Excessive discharge or extended period without charging; pack approaching the cut-off voltage (24 V / 48 V).
Charge the battery as soon as possible from mains or PV. The manual warns repeatedly that an over-discharged pack may fail to be re-activated by normal AC/PV wake-up.
Felicitysolar LPBF24200-M LiFePO4 Battery System for Households User Guide.pdf · page 9Pack-level battery voltage is above the upper threshold (over-voltage warning at the pack level).
Charger output voltage above the pack maximum charging voltage (e.g. >28.8 V on the 24 V model, >57.6 V on 48 V models).
Stop charging and check the charger / inverter charge-voltage settings against the recommended values in section 2.4. Resume only after the pack voltage falls back into the operating range.
Felicitysolar LPBF24200-M LiFePO4 Battery System for Households User Guide.pdf · page 9Write down the exact code shown on the display, what the unit was doing when it appeared (charging, discharging, idle, grid-tied), and any LEDs or audible alarms. The same code can have different fixes depending on context.
Find the code in the list below and read the cause + recommended fix. Most warning-level codes can be cleared by following the listed action — usually reducing load, checking wiring, or restarting the unit.
Each code shows the source manual filename and page number. Open that exact page in the official manual to verify model-specific notes (firmware version, parallel-config notes, regional variants) before acting.
If a fix requires opening the enclosure or accessing terminals, disconnect AC input, DC PV, and battery in that order. Wait at least 60 seconds for capacitors to discharge before touching any conductors.
Critical codes (short-circuit, IGBT failure, BMS hardware error) should not be cleared by end users. Note the code, model number, and source manual page, then contact an authorized service partner.
Compiled from official Felicity user manuals. Always consult your device manual and a qualified technician before performing repairs.