PowerTech MP3764 - Troubleshooting

11
6. Troubleshooting
Faults
Possible reasons
Troubleshooting
The PV of LCD
display 0 when
the sunshine
falls on PV
modules
properly
PV array
disconnection
Confirm that PV wire
connections are correct
and tight
LCD is no
display
Min.8V will start up
the controller.
Measure battery voltage
with multi-meter. Min.8V
can start up the controller.
Flashing
Battery Overvoltage
Disconnect the solar array
and measure the battery
voltage whether is too
high;
Flashing
Battery Over
Discharge
Charge the battery
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