PowerTech MP3743 - Basic Functional Descriptions; PV Solar Panel Input Parameters; Battery Charging and Identification; Load Output Operations and Safeguards

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FAULT CODES:
E1 Battery has been installed with the polarity reversed.
E2 Battery is not currently connected, or is under the low voltage cut o.
E3 Battery over current protection enabled. If the issue persists, the control-
ler may be faulty.
E4 Load over current / short circuit protection. Turn o the machine for 10
seconds to reset.
E5 Battery over voltage protection.
E6 Solar input over voltage protection.
E7 Over temperature protection. Charging will restart once the temperature
is under 60’C.
E8 Solar input has been installed with the polarity reversed.