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Troubleshooting
Faults
Charging LED
indicator off during
daytime when
sunshine falls on
PV modules
properly
Wire connection is
correct, the
controller is not
working.
Battery indicator
green slowly
flashing
Battery indicator
red on solid
Battery indicator
red slowly flashing
Charge, Load and
Battery(orange)indi
cator flashing
Load indicator red
slowly flashing
Load indicator red
fast flashing
www.ACOPower.com
Possible reasons
PV array
disconnection
Battery voltage is
lower than 8V
Battery over
voltage
Battery over
discharged
Battery
Overheating
Controller
Overheating
Load Overload
Load Short Circuit
KIT-HYS100MB
Troubleshooting
Confirm that PV and battery wire
connections are correct and tight
Please check the voltage of battery. At
least 8V voltage to activate the
controller.
Check if battery voltage is higher than
OVD(over voltage disconnect voltage),
and disconnect the PV.
When the battery voltage is restored to
or above LVR(low voltage reconnect
voltage), the load will recover
The controller will automatically turn the
system off. But while the temperature
decline to be below 55 ºC, the controller
will resume.
When heat sink of controller exceeds
85℃, the controller will automatically cut
input and output circuit. When the
temperature below 75℃,the controller
will resume to work.
①Please reduce the number of electric
equipments.
②Restart the controller.
③wait for one night-day cycle (night
time>3 hours).
①Check carefully loads connection, clear
the fault.
②Restart the controller.
③wait for one night-day cycle (night
time>3 hours).
4120 Valley Blvd Walnut, CA 91789, USA
+1-626-737 1140
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