12 | SAMLEX AMERICA INC.
SECTION 5 |
Troubleshooting & Maintenance
TROUBLESHOOTING
Table 4.1 given below provides troubleshooting guidance
Table 4.1: TROUBLESHOOTING GUIDE
Symptom
Possible
Reason
Remedy
Charging Status LED Indicator (1) is
OFF during daytime when PV panels
are exposed to direct sunlight
Input connec-
tion from solar
panels has been
disconnected or PV
Voltage is <5V
Check that wiring from solar panels to
the Solar Panel Input Connections is con-
nected and connections are tight. Check
PV Voltage is >6V.
Battery Status LED Indicator (2) is
Green and is flashing fast
Battery voltage has
risen to the Over
Voltage Disconnect
Threshold of 16.0V
Measure battery voltage. If ≥ than 16.0V,
disconnect the battery. The controller is
defective. Call Technical Support.
Battery Status LED Indicator (2) is
steady Orange. Battery voltage at
Load Terminals is available and the
load is operating normally
Battery voltage has
dropped to Under
Voltage Warning
Threshold of 12.0V
The Battery Status Indicator (1) will return
to Green when the battery voltage rises
to Under Voltage Warning Reconnect
Threshold of 12.2V.
Battery Status LED Indicator (2) is
steady Red. There is no battery volt-
age at Load Terminals and the load
has switched off
Battery voltage has
dropped to Low
Battery Disconnect
Threshold of 11.1V
The Battery Status Indicator (1) will reset
to Green when the battery voltage rises
to Low Battery Reconnect Threshold
of 12.6V. Battery voltage will then be
restored at the Load Terminals.
Load Status LED Indicator (3) is Red
and flashing slowly. There is no
output voltage at Load Terminals and
the load has switched off
Current drawn
from the Load Ter-
minals is > 10A
Reduce the load to < 10A. Press the Load
On/Off Button (4). After 3 sec, the output
voltage at the Load Terminals will be
restored.
Load Status LED Indicator (3) is Red
and flashing fast. There is no output
voltage at Load Terminals and the
load has switched off
There is short
circuit at the Load
Terminals
Clear the short Circuit. Press the Load On/
Off Button (4). After 3 sec, the output
voltage at the Load Terminals will be
restored and the load will once again start
operating normally.
All 3 LED Indicators are flashing:
Charging Status LED (1) = Flashes Green
Battery Status LED (2) = Flashes Orange
Load Status LED (3) = Flashes Red
Heat sink is over-
heated.
When the heat sink temperature is >85°C,
the input and output circuits will be cut
off. Once the temperature falls below
75°C, operation will be resumed.
All 3 LED Indicators are flashing:
Charging Status LED (1) = Flashes Green
Battery Status LED (2) = Flashes Red
Load Status LED (3) = Flashes Red
System error.
Battery voltage
does not match
controller
Check battery voltage and ensure it is
12V. Press Load On/Off Button (4) to clear
the malfunction.
MAINTENANCE
Dust and dirt should be swept off the solar panel surface using soft brush. Then, a wet cloth
may be used to wipe the panel surface to remove remaining dirt and grime. It is recommended
that any bird droppings should be removed as soon as possible as these can cause damage to
the surface.
