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error Upgraded
Error Code E02
Solar panel input current is higher than 30A.
? What Causes This
Excessive solar panel current or overrated connection.
✓ How to Fix It
Remove or lower the power draw from the connected panels. Disconnect the panels to reset the error.
Source: page 25 of the official manual
From the manual
This error code appears in:
Upgraded 30A Solar Charge Controller