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error Renogy
Error Code No LED indicator when battery is connected to the charge controller
The controller does not show any sign of life after connecting a battery.
? What Causes This
Battery voltage too low below minimum operating level (e.g., less than 9V).
✓ How to Fix It
Check the voltage of your battery: recharge or replace it if necessary. Ensure correct connection to charge terminals without reversals. The threshold must exceed minimum voltage requirements detailed in setup documentation.
Source: page 25 of the official manual
From the manual
This error code appears in:
Renogy Wanderer 30a