© 2020, Sunna Design, Inc.
11
Troubleshooting
iSSL+, v5, SL4100
USER MANUAL
EVENT
STATUS OF
INDICATOR LED
DIAGNOSTIC
CAUSE
SOLUTION
LED MODULE
DOES NOT
TURN ON
AT BOOT OR
DURING THE
NIGHT
OFF
OFF
OFF
Product OFF
Switch not engaged
Switch on the switch
(the HMI LED will light
up)
OFF
* FLASH
OFF
Product in
sleep mode
(Uncharged
battery)
Too long storage of
the product
Let the product load in
the sun
Bad weather condi-
tions
Product will resume
a normal cycle when
the weather conditions
have become favorable
Dirty or shady solar
panels
Clean the solar panel
or move the product
if shady
OFF
* FLASH
OFF
Product
temperature is
abnormal
Temperature above
80°C (176°F)
Wait for the
temperature to return to
the operating range
* FLASH
* FLASH
OFF
Defective night
detection
Light pollution on the
panel
Move the product if
presence of indirect
lighting on the panel
OFF
OFF
OFF
Electronic
defect
Hardware problem
Intervention required
LED MODULE
STAYS
ON DURING
THE DAY
* FLASH
OFF
OFF
Day not
detected
Extreme weather
conditions
Product will resume a
normal cycle when the
weather conditions are
favorable
Dirty or shady solar
panels
Clean the solar panel
or move the product
if shady
Brightness is too
weak
Wait until the bri-
ghtness is sufficient for
the product to detect
the day
THE POWER
OF THE LED
MODULE
IS LOW OR
DECREASES
AT THE
BEGINNING
OF THE NIGHT
* FLASH
OFF
OFF
Lighting profile
in degraded
mode (energy
saving)
Adverse weather
conditions
The product adapts its
energy consumption
to work all night (no
blackout)
* FLASH : default flashes every 3 seconds; if sleep mode, flashes every minute.
