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ESmart3 Red Charge Controller shows incorrect voltage

VladG

New Member
Joined
Dec 2, 2020
Messages
9
Hello. I have an ESmart3 40A charge controller (I think this is IPanda unit ) that was working fine in my cottage for two years. At some point, I discovered that it displays a battery charge voltage equal to 5V while I have 12-volt batteries. The tester showed the right voltage of 13 something, so the batteries were not dead. I immediately disconnected the charger and now I'm trying to repair the unit. It shows now 1.9 volts for the battery of 13.6 volts and 1.3V for a 10-volt battery. I would like to troubleshoot and repair it but need a schematic of the unit. Please let me know if you have access to the schematic of this unit or you can refer to any location of it. I would listen to any of your suggestions how to recover the charger. Thank you.
 
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