Fault

04

PV temperature is too high.

6 Devices that report this code
04PV temperature is too high.Fault
Description

PV temperature is too high.

Recommended fix

Check whether the air flow of the unit is blocked or whether the ambient temperature is too high.

Source:ICM.pdf · page 13
04Low Cell Voltage.Warning
Description

Individual cell voltage below minimum allowed value.

Cause

Cell-level undervoltage (imbalance or deep discharge of a single cell).

Recommended fix

Stop discharging.

Source:LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 21
04Low Cell Voltage.Warning
Description

Individual cell voltage fell below the lower threshold.

Recommended fix

Stop discharging.

Source:LUX-Y-48100HG01-Lithium-Battery-User-Guide.pdf · page 20
04Low Cell Voltage.Fault
Description

Low Cell Voltage.

Source:LUX-Y-48100HG01MN User manual 358-S010025-03 0325(V2.0).pdf · page 27
04Battery voltage is high.Critical
Description

Battery voltage has exceeded the controller's high-voltage disconnect threshold.

Cause

Battery overvoltage condition, possibly due to incorrect battery system voltage setting or external charging source raising battery voltage above safe limits.

Recommended fix

1. Reconnect the battery to the charger. 2. if the problem remains, please contact your installer.

Source:felicitysolar SCCM-III MPPT Solar Charge Controller User Guide.pdf · page 18
04Short circuit happen at PV port.Fault
Description

Short circuit happen at PV port.

Recommended fix

Check if wiring is connect well.

Source:T-REX-3_3.6_4_4.6_5_6KLP1G01-hybrid-inverter-user-guide-English.pdf · page 37

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