User Manual
System voltage
error
PV/BATT indicator
fast flashing
① Check whether the battery
voltage match with the
controller working voltage.
② Please change to a
suitable battery or reset the
working voltage.
Load Overload
1. The load is no output
Load and fault icon blink
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).
Load Short Circuit
Possible reasons Faults Troubleshooting
5.3 Maintenance
The following inspections and maintenance tasks are recommended at least two
times per year for best performance.
Make sure controller firmly installed in a clean and dry ambient.
Make sure no block on air-flow around the controller. Clear up any dirt and
fragments on heat sink.
Check all the naked wires to make sure insulation is not damaged for 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 damaged, high
temperature or burnt/discolored sign, tighten terminal screws to the suggested
torque.
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