Renogy Solar Charge Controller: “E5”
warning RV solar charge controller error codes
What it means
Load overload: the current drawn through the controller's load output exceeded its rated limit, so the controller cut the load output to protect itself.
Most likely causes
- Total connected load current exceeds the controller's load terminal rating most likely
- A high-draw or surging device (motor, pump, large inverter) wired to the load output common
- Partial short or fault in a connected appliance raising current less common
Safe checks you can do yourself
- Add up the current of all devices on the load output and compare to the controller's rated load current.
- Disconnect high-draw devices and connect them directly to the battery through an appropriately fused circuit instead.
- Check for a faulty appliance drawing more than its rated current.
How to reset / clear E5
- Reduce the connected load below the rated limit.
- Power-cycle the controller to clear the overload state, then reconnect within limits.
When to call a technician
If overload trips even with loads well under the rating, have the controller checked for an internal current-sensing fault.
Applies to
Renogy Rover 20A/30A/40A · Renogy Rover Li 20A/30A/40A
FAQ
What does Renogy Solar Charge Controller code "E5" mean?
Load overload: the current drawn through the controller's load output exceeded its rated limit, so the controller cut the load output to protect itself.
How do I reset Renogy Solar Charge Controller E5?
Reduce the connected load below the rated limit. Power-cycle the controller to clear the overload state, then reconnect within limits.
What is the most common cause of E5 on a Renogy Solar Charge Controller?
The most likely cause is total connected load current exceeds the controller's load terminal rating.
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Sources
- Renogy Rover 40A Manual - System Status Troubleshooting (Page 21) — Rover 40A manual, Error Code table, E5 Load overloaded (ManualsLib / Renogy)
Note: Confirmed on the Rover 40A manual table. Load-output current ratings differ by model.
● Last verified 2026-06-29 · compiled from manufacturer documentation. Codes can vary by model year — always cross-check your unit’s manual.