Critical

FAULT-LED-BVL

Battery voltage low.

2 Devices that report this code

What does the FAULT-LED-BVL error code mean?

FAULT-LED-BVL on a Felicity unit indicates: Battery voltage low.. It is a critical-severity event that can appear on 2 different devices in the Felicity catalog. The same code may have slightly different recommended fixes depending on the device — the per-device sections below show the exact wording from each device's official manual.

This is a critical-severity code

Critical codes trip the unit offline immediately. They typically indicate hardware failure (short-circuit, IGBT, BMS) or an unsafe operating condition. Do not bypass the fault — note the code and contact authorized service.

What triggers this code

FAULT-LED-BVL is triggered when the unit's protection or monitoring logic detects the specific condition described above. The exact trigger depends on the device — see the per-device sections for the official manual entry for each.

FAULT-LED-BVLBattery voltage low.Critical
Description

FAULT mode indicated by RED LED ON with LED1 OFF, LED2 ON, LED3 OFF, LED4 OFF: total battery voltage below safe threshold.

Cause

Battery pack voltage below safe threshold (deeply discharged).

Recommended fix

Recharge the battery promptly using AC or PV; do not leave the pack idle in low-power state.

Source:LUX-X-48100LG01-Litium-Battery-User-Guide.pdf · page 15
FAULT-LED-BVLBattery voltage low.Critical
Description

FAULT mode signalled by RED LED ON with LED1 OFF, LED2 ON, LED3 OFF, LED4 OFF: total battery voltage below safe threshold.

Cause

Battery pack voltage below safe threshold (deeply discharged).

Recommended fix

Recharge the battery promptly using AC or PV; do not leave the pack idle in low-power state.

Source:358-S010024-03LUX-X-48100LG01-User-manual_compressed.pdf · page 21

Frequently asked about FAULT-LED-BVL

What is the FAULT-LED-BVL error on Felicity?
FAULT-LED-BVL on a Felicity unit means: Battery voltage low.. It can appear on 2 different devices in the Felicity catalog. The cause and recommended fix are listed for each device on this page.
Can I clear the FAULT-LED-BVL code myself?
It depends on the severity. Warning-level codes can usually be cleared by following the recommended fix. Fault and critical codes often require checking the source condition first; if the code returns immediately after restart, escalate to authorized service.
Is the FAULT-LED-BVL fix the same on every device?
The cause is consistent — it's the same protection logic. The exact fix wording can differ per device because each official manual addresses model-specific context (input ranges, parallel-config notes, firmware revisions). Use the per-device section that matches your unit.
Where does this information come from?
Every entry is sourced directly from the official Felicity user manual for the affected device. The "Source" line at the bottom of each device's section shows the manual filename and page number.

Compiled from official Felicity user manuals. Always consult your device manual and a qualified technician before performing repairs.