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The wire connection is correct; the
controller is not working.
Battery frame
blink,
fault
icon blink
4.3 Maintenance
The following inspections and maintenance tasks are recommended at least twice yearly for the best
performance.
Make sure no block on airflow around the controller. Clear up any dirt and fragments on the radiator.
Check all the naked wires to ensure insulation is not damaged by sun exposure, frictional wear,
dryness, insects or rats, etc. Repair or replace some wires if necessary.
Check and confirm that LED is consistent with required. Pay attention to any troubleshooting or error
indication. Take necessary corrective action.
Confirm that all terminals have no corrosion, insulation damage, high temperature, or
burnt/discolored sign, and tighten terminal screws to the suggested torque.
Clear up dirt, nesting insects, and corrosion in time.
Check and confirm that the lightning arrester is in good condition. Replace a new one in time to
avoid damaging the controller and other equipment.
Risk of electric shock!
Ensure all the power is turned off before the above operations, and then follow the
WARNING
corresponding inspections and operations.
The battery voltage
is lower than 8V.
Battery over voltage
Battery over
discharged
Battery over heating
21
Please check the battery's voltage
(at least 8V voltage to activate the
controller).
Check whether the battery voltage
is higher than OVD (over voltage
disconnect voltage) and disconnect
the PV array connection.
① When the battery voltage is
restored to or above LVR (low
voltage reconnect voltage), the
load recovers.
② Other ways to recharge the
battery.
While
the
battery
decline to 55 º C or below, the
controller resumes work.
temperature
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