SCCM3024-III
Charge controller13 codes01Over charge current.Critical
Charging current exceeds the controller's safe operating limit.
Charging current has exceeded the maximum safe threshold of the charge controller, possibly due to a fault in the charging circuit or excessive PV input.
1. Restart the charger. 2. if the problem remains, please contact your installer.
felicitysolar SCCM-III MPPT Solar Charge Controller User Guide.pdf · page 1802Over temperature.Critical
The charge controller's internal temperature has exceeded its safe operating range.
Controller is operating in a hot environment or has insufficient airflow/ventilation, causing the heatsink temperature to exceed safe limits.
1. Keep the charger in the cool environment. 2. if the problem remains, please contact your installer.
felicitysolar SCCM-III MPPT Solar Charge Controller User Guide.pdf · page 1803Battery voltage is too low.Critical
The connected battery voltage has dropped below the acceptable minimum threshold.
Loose, broken, or improperly connected battery wiring, or a deeply discharged/damaged battery.
1. Check the battery wire connection. 2. if the wire connection is ok, please contact your installer.
felicitysolar SCCM-III MPPT Solar Charge Controller User Guide.pdf · page 1804Battery voltage is high.Critical
Battery voltage has exceeded the controller's high-voltage disconnect threshold.
Battery overvoltage condition, possibly due to incorrect battery system voltage setting or external charging source raising battery voltage above safe limits.
1. Reconnect the battery to the charger. 2. if the problem remains, please contact your installer.
felicitysolar SCCM-III MPPT Solar Charge Controller User Guide.pdf · page 1805PV is high loss.Critical
Solar (PV) input voltage exceeds the controller's maximum allowable input voltage (140V or 190V depending on model).
PV array open-circuit voltage exceeds the controller's maximum solar input voltage rating (95V for 30A/45A models with 12V/24V; 145V for 45A/60A/80A 48V models; 165V for 100A/120A models).
1. Please check the voltage of the solar panel, it should be less than 140V or 190V. 2. if the voltage is ok, please contact your installer.
felicitysolar SCCM-III MPPT Solar Charge Controller User Guide.pdf · page 1806Battery temperature is too low.Warning
Detected battery temperature is below the safe charging range.
Battery ambient temperature is too low, or remote temperature sensor (RTS) is faulty, disconnected, or reporting incorrect values.
1. Check your remote temperature sensor and your battery ambient temperature. 2. if the problem remains, please contact your installer.
felicitysolar SCCM-III MPPT Solar Charge Controller User Guide.pdf · page 1807Battery temperature is too high.Critical
Detected battery temperature exceeds the safe charging range.
Battery ambient temperature is too high, or remote temperature sensor (RTS) is faulty, disconnected, or reporting incorrect values.
1. Check your remote temperature sensor and your battery ambient temperature. 2. if the problem remains, please contact your installer.
felicitysolar SCCM-III MPPT Solar Charge Controller User Guide.pdf · page 1808Battery voltage is different.Critical
Detected battery voltage does not match the configured/rated battery voltage of the system.
Battery is incorrectly wired, has wrong rated voltage configuration (12V/24V/48V), or auto-detection has failed.
1. Check that the battery is properly connected or check battery rated voltage is set correctly. 2. if the problem remains, please contact your installer.
felicitysolar SCCM-III MPPT Solar Charge Controller User Guide.pdf · page 1811MOS tube damaged.Critical
The MOSFET (power switching transistor) inside the controller is damaged.
Internal MOSFET hardware failure, often caused by overcurrent, short circuit, or surge events.
1. Restart the charger. 2. if the problem remains, please contact your installer.
felicitysolar SCCM-III MPPT Solar Charge Controller User Guide.pdf · page 1812Relay is short.Critical
The internal relay has a short-circuit fault.
Internal relay hardware failure, where the relay contacts have welded or shorted closed.
1. Restart the charger. 2. if the problem remains, please contact your installer.
felicitysolar SCCM-III MPPT Solar Charge Controller User Guide.pdf · page 1816Parallel is fault.Critical
Parallel-operation fault: a problem has been detected in the parallel connection between charge controllers.
Parallel communication or wiring fault between SCCM-III controllers connected in parallel (note: SCCM3024-III and SCCM4524-III do not support parallel operation).
1. Restart the charger. 2. if the problem remains, please contact your installer.
felicitysolar SCCM-III MPPT Solar Charge Controller User Guide.pdf · page 1817Eeprom is fault.Critical
EEPROM (non-volatile parameter memory) read/write fault.
Internal EEPROM corruption or hardware failure preventing the controller from reading/writing stored configuration.
1. Restart the charger. 2. if the problem remains, please contact your installer.
felicitysolar SCCM-III MPPT Solar Charge Controller User Guide.pdf · page 18NO_DISPLAYNo display in LCD screen.Warning
The LCD display shows nothing / is blank.
Loose or disconnected battery wiring depriving the controller of power, or display hardware fault.
1. Check battery wire connection. 2. Push the button, if the problem remains, please contact your installer.
felicitysolar SCCM-III MPPT Solar Charge Controller User Guide.pdf · page 18Compiled from official FelicityESS user manuals. Always consult your device manual and a qualified technician before performing repairs.