What do the error codes for MP3755 and MP3745 Solar Charge Controllers mean?

March 05, 2025 04:06 Updated

E1 Battery Reverse protection

E2 Abnormal battery voltage

E3 Over current protection

E4 Load overload/short circuit protection

E5 Battery over voltage protection

E6 PV over voltage protection

E7 Over temperature protection

E8 PV input reverse protection

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