Output loss
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.
The exact meaning depends on your model:
Output loss — Output loss fault. LED pattern: LED1 OFF, LED2 ON, LED3 ON, LED4 ON.
Cause: The battery's output path is interrupted: the circuit breaker is open or the fuse has blown.
Source: Felicitysolar FLA12100 12.5Kwh Battery Energy Storage System User Manual.pdf, p.1
Output loss — Battery output is lost - no power being delivered to the load.
Cause: Circuit breaker open or fuse blown.
Source: Felicitysolar FLA48200 48V 200Ah 10kWh Lithium Phosphate Battery User Manual.pdf, p.13
Output loss — BMS detected loss of output from the battery pack (no power on the output side).
Cause: Circuit breaker may be open, or the fuse may be blown.
Source: 6peluqppy_66a93554057c8.pdf, p.13
C14 — Output loss.
Cause: The battery's output path is interrupted: the circuit breaker is open or the fuse has blown.
Source: FLA48250-EU_Manual.pdf, p.8
Also applies to:HE-GF-FLA-48500
Output loss — Output loss / no output detected.
Cause: Breaker open, blown fuse, or output path interrupted.
Source: felicitysolar FLA48500 LiFePO4 Battery System for Households User Guide.pdf · HE-GF-FLA-48500 Manual_20250327_EN.pdf
Ausgangsverlust / Ausgang fehlt — Output loss. No output detected at the battery terminals.
Cause: Circuit breaker open, blown fuse, or internal output failure (Sicherung durchgebrannt, Trennschalter offen oder interner Ausgangsfehler).
Source: Benutzerhandbuch - Felicity FLS48100SG2.pdf
Output loss — Output-loss fault displayed on the LCD BMS fault code / flag screen (section 4.4); the BMS detects no output current path / output cannot be enabled.
Cause: Open circuit breaker, blown internal fuse, or other open in the output path. Section 2.3 lists Built-in smart BMS, Fuse as the protection elements.
Source: 358-010291-07.pdf, p.9
Also applies to:LUX-Y-48280LG01LUX-Y-48300LG01
Output loss
Cause: No output from the battery pack. Possible causes: circuit breaker open, or fuse blown.
Source: LUX-E-48100LG03-Lithium-Battery-User-Guide.pdf, p.13 · LUX-Y-4828048300LG01-Lithium-Battery-User-Guide.pdf, p.8
C14
Cause: Output loss — no output from the battery pack; the circuit breaker may be open or the fuse may be blown.
Source: LUX-E-48200LG03-Lithium-Battery-User-Guide.pdf, p.13
Also applies to:LUX-E-48250LG03
C14
Cause: Circuit breaker may be open or fuse may be blown.
Source: LUX-E-48230.250LG03-Lithium-Battery-User-Guide.pdf
Also applies to:LUX-X-48100LCG01LUX-X-48100LMG01
Output loss — Battery pack has lost its output (no DC output detected at the terminals).
Cause: Open circuit breaker, blown fuse or other output-path interruption.
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
Output loss — Battery pack has lost its output (no DC output detected at the terminals).
Cause: Open circuit breaker, blown fuse or other output-path interruption.
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.