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6. Troubleshooting
6.1 Troubleshooting
Faults
Reason
E01
Load short circuit
Load over current
E02
E03
Battery low voltage
E04
Battery over voltage
Over temperature
E05
PV over voltage
E06
PV over current
E07
PV short circuit
E08
!
Two or more errors at the same time can damage the controller, so you must
troubleshoot the existing fault .
6.2 Maintenance
For best system performance, the following inspections and maintenance tasks are recommended
to be carried out for at least two times a year.
Make sure no block on air-flow around the controller. Clear up any dirt and fragments on radiator.
Check all the naked wires to make sure insulation is not damaged.
Repair or replace some wires if necessary.
Tighten all terminal screws to the indicated torque; Inspect for loose, broken or burnt cable connections.
Check and confirm that LCD is consistent with required. Pay attention to any troubleshooting or error
indication. Take corrective action if necessary.
Make sure all system components are effectively and tightly connected to ground.
Check all terminals for any corrosion signs, damaged insulation, increased temperature.
Check for any dirt, nesting insects and any corrosion signs. Implement corrections actions as early as
possible.
WARNING：Risk of electric shock!
①Clear short circuit fault
②Restart the controller or press the key to restore the load
output.
①Power reduction equipment
②Restart the controller or press the button to clear the faulty
load and restore output.
Load will be reconnected when battery is recharged.
Check if other sources overcharge the battery.
If not, controller is damaged.
After the temperature decreases,the controller will work
normally.
Reduce solar photovoltaic voltageor shield the solar panel
appropriately.
Check whether the solar panel power exceeds the maximum
power limitation. If yes, change the solar panel.
Check whether the solar panel is damaged. If so,
replace the photovoltaic panel
Make sure that all the power is turned off before above operations,
and then follow the corresponding inspections and operations.
Page 8 of 10 pages
Troubleshooting
.