EPEVER RV solar charge controller fault codes
MPPT/PWM solar charge controllers manage charging from RV solar panels. Errors flag battery voltage/temperature, panel over-voltage and controller overheating.
How to read the code
Read the "Err"/E-code on the display or app. Most solar faults auto-clear once voltage/temperature returns to range — but check PV wiring and battery settings.
All documented codes
All LEDs fast flash — overheating warning
When every indicator (PV, battery and the battery-capacity level LEDs) flashes fast at the… Battery red slow flash — over-temp warning
The battery indicator slowly flashing red signals a battery temperature fault: with a temp… Battery red solid — over-discharged warning
A steady red battery indicator means the battery is over-discharged: voltage has dropped t… Green LED fast flash — battery warning
The battery-status indicator flashing green at about 4 Hz means battery over-voltage: batt… Green LED fast flash — charging warning
The PV/charging indicator flashing green at about 4 times per second signals PV over-volta… Load + fault — short circuit danger
The load and fault indicators blinking signal a load-side short circuit. When load current… Load blinking — overload warning
The load indicator blinking (load off) signals a load overload: connected load current exc… No charge in daylight warning
Two related no-charge indications: the green PV/charging indicator OFF while the sun is on…
When every indicator (PV, battery and the battery-capacity level LEDs) flashes fast at the… Battery red slow flash — over-temp warning
The battery indicator slowly flashing red signals a battery temperature fault: with a temp… Battery red solid — over-discharged warning
A steady red battery indicator means the battery is over-discharged: voltage has dropped t… Green LED fast flash — battery warning
The battery-status indicator flashing green at about 4 Hz means battery over-voltage: batt… Green LED fast flash — charging warning
The PV/charging indicator flashing green at about 4 times per second signals PV over-volta… Load + fault — short circuit danger
The load and fault indicators blinking signal a load-side short circuit. When load current… Load blinking — overload warning
The load indicator blinking (load off) signals a load overload: connected load current exc… No charge in daylight warning
Two related no-charge indications: the green PV/charging indicator OFF while the sun is on…