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critical Renogy
Error Code E4
Load short circuit detected.
? What Causes This
Fault in the load connection causing a direct path for current flow with low resistance.
✓ How to Fix It
- Disconnect any connected devices and check for damaged wiring or connectors.
- Reconnect components or replace faulty ones.
Source: page 52 of the official manual
From the manual
This error code appears in:
Renogy Rover 40a