EN
29
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 overdischarge 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.
1. Disconnect one or more connected
consumers to reduce the power
output.
2. Press the load switch button to
reconnect the load.
The load status indicator is
flashing slowly.
Short circuit.
1. Check the load and its connection,
and rectify the short circuit.
2. Press the load switch button 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.
