!
error Renogy
Error Code E2
Battery over-voltage detected.
? What Causes This
Potential incorrect battery configuration or system malfunction.
✓ How to Fix It
- Confirm correct battery parameters are set on the controller.
- Check for wiring issues and ensure proper connections.
Source: page 52 of the official manual
From the manual
This error code appears in:
Renogy Rover 40a