37
/
Load and fault icon blink
③
Wait for one night-day cycle
(night time>3 hours).
Load Short
Circuit
①
Check carefully load
connection, and clear the fault.
②
Restart the controller.
③
Wait for one night-day cycle
(night time>3 hours).
5.3 Maintenance
The following inspections and maintenance tasks are recommended at least twice yearly for best
performance.
Make sure the controller is firmly installed in a clean and dry ambient.
Make sure no block on airflow around the controller. Clear up any dirt and fragments on the
heat sink.
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.
Tighten all the terminals. Inspect for loose, broken, or burnt wire connections.
Check and confirm that LED is consistent with required. Pay attention to any troubleshooting
or error indication. Take corrective action if necessary.
Confirm that all the system components are ground connected tightly and correctly.
Confirm that all the terminals have no corrosion, insulation damage, high temperature, or
burnt/discolored sign. 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.
WARNING
Risk of electric shock!
Ensure all the power is turned off before the above operations, and then follow
the corresponding inspections and operations.
