20
Digital tube displays
“L” with red slowly
flashing
Over load or short
circuit
Overload: Please reduce
the load and press the
button
once,
the
controller will resume to
work after 3s;
Short circuit: when the
first short-circuit occurs,
the controller will
automatically resume to
work after 10s; when a
second short-circuit
occurs, press the button,
the controller will
resume to work after 3s.
Digital tube displays
“H” with red slowly
flashing
Too high
temperature of
controller
When heat sink of the
controller exceeds
85
℃
, the controller will
automatically cut input
and output circuit. When
the temperature below
75
℃
, the controller will
resume to work
Notes: No LED indicator.
Measure battery voltage with multimeter.
Min.6V can start up the controller.
Notes: No charging status LED indicator with normal
connection. Measure the input voltage of solar module,
the input voltage must be higher than battery voltage!
