PowerTech MP3741 User Manual

Page 22
4.2 Troubleshooting
Faults
Possible reasons
Troubleshooting
The LCD is off
during daytime
Solar array
disconnection
Confirm that Solar and battery
wire connections are correct
and tight
when sunshine is
falling on
on Solar panels
Wire connection is
Battery voltage is
lower than 9V
Please check the voltage of
correct, LCD not
battery. At least 9V voltage to
activate the controller
display
Battery voltage
Check if the battery voltage is
higher than over
Interface
too high, and disconnect the
voltage disconnect
blink
solar module
voltage(OVD)
Load output is normal,
Interface
Battery under
charging LED indicator will
blink
voltage
return to green automatically
when fully charged
The controller will cut off the
Interface
Battery low voltage
output automatically, LED
disconnect
indicator will return to green
blink
automatically when fully
charged
Remove or reduce the load
Interface
Over load or Short
and press the button, the
blink
circuit
controller will resume to work
after 3 seconds

PowerTech MP3741 Specifications

General

Brand	PowerTech
Model	MP3741
Category	Controller
Language	English