Critical

FAULT-LED-CVH

Cell voltage high.

2 Devices that report this code

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

FAULT-LED-CVH on a Felicity unit indicates: Cell voltage high.. 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-CVH 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.

LUX-X-48100LG01Battery↗ view on device
FAULT-LED-CVHCell voltage high.Critical
Description

FAULT mode indicated by RED LED ON with LED1 ON, LED2 ON, LED3 OFF, LED4 OFF: an individual cell voltage exceeds the safe upper limit.

Cause

One or more cells over-voltage; possible cell imbalance or charger overvoltage.

Recommended fix

Stop charging; verify charger/inverter max charge voltage; allow BMS to balance and recover.

Source:LUX-X-48100LG01-Litium-Battery-User-Guide.pdf · page 15
LUX-X-48100LG01-USBattery↗ view on device
FAULT-LED-CVHCell voltage high.Critical
Description

FAULT mode signalled by RED LED ON with LED1 ON, LED2 ON, LED3 OFF, LED4 OFF: an individual cell voltage exceeds the safe upper limit.

Cause

One or more cells over-voltage; possible cell imbalance or charger overvoltage.

Recommended fix

Stop charging; verify charger/inverter max charge voltage; allow BMS to balance and recover.

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

Frequently asked about FAULT-LED-CVH

What is the FAULT-LED-CVH error on Felicity?
FAULT-LED-CVH on a Felicity unit means: Cell voltage high.. 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-CVH 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-CVH 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.