Renogy 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
E1 warning
The controller has detected that the battery is over-discharged (its voltage dropped below… E2 warning
The controller has detected battery over-voltage: the battery voltage has risen above its … E3 warning
The controller reports a battery under-voltage condition: battery voltage is below normal … E4 danger
Load short circuit: the controller detected a short across its load output terminals and s… E5 warning
Load overload: the current drawn through the controller's load output exceeded its rated l… E6 warning
Controller over-temperature: the controller's internal temperature exceeded its safe limit… E8 warning
PV (solar) input over-current: the current coming from the solar array exceeded the contro… E10 danger
PV (solar) over-voltage: the solar array's voltage exceeded the controller's maximum input…
The controller has detected that the battery is over-discharged (its voltage dropped below… E2 warning
The controller has detected battery over-voltage: the battery voltage has risen above its … E3 warning
The controller reports a battery under-voltage condition: battery voltage is below normal … E4 danger
Load short circuit: the controller detected a short across its load output terminals and s… E5 warning
Load overload: the current drawn through the controller's load output exceeded its rated l… E6 warning
Controller over-temperature: the controller's internal temperature exceeded its safe limit… E8 warning
PV (solar) input over-current: the current coming from the solar array exceeded the contro… E10 danger
PV (solar) over-voltage: the solar array's voltage exceeded the controller's maximum input…