EN
28
TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
ACTION
The charge controller goes off
during the day in sunlight.
Solar panel connections loose
or broken.
Check that the solar panel
and battery leads are correctly
connected to their respective
terminals and that they are
firmly tightened.
All the status lights are off.
Very low battery voltage,
probably less than 8 V.
Measure the battery voltage
with a multimeter. The charge
controller needs at least 8 V
to start.
The charge status indicator is
flashing rapidly.
Overvoltage, battery.
Check if the battery voltage
exceeds the disconnection
limit, and disconnect from the
solar panel.
Status light 1 flashing rapidly.
Undervoltage, battery.
The battery voltage
has dropped below the
disconnection limit and the
over-discharge protector has
disconnected the load from
the battery. When the battery
voltage is restored to at least
the reconnection limit, the
load is reconnected.
The load status indicator is
flashing slowly.
Overload.*
Disconnect one or more
connected loads to reduce
the power output.
Press the load switch to
reconnect the load.
The load status indicator is
flashing slowly.
Short circuit.
Check the load and its
connection, and rectify
the short circuit.
Press the load switch to
reconnect the load.
* When the output current (power consumption of load) reaches 1.25, 1.5 and 2 times the rated
current, the charge controller switches off the current automatically after 60 s, 5 s, and 1 s,
respectively.
