7 Common troubleshooting and maintenance
7.1 Troubleshooting
The following table lists the typical state of fault and treatment scheme:
Table7-1 Exception handling operation table.
Phenomena
Cause value
Troubleshooting
Solar Pumping
Inverter’s power
led and its LCD
are not lit when
the external AC
input side switch
of Power Pack is
on.
1. Power Pack was
not connected with
Solar Pumping
Inverter.
2. Solar Pumping
Inverter DC switch
is off.
1. Properly wire connection between Power Pack
and Solar Pumping Inverter
2. Disconnect the input side circuit breaker of
Power Pack till its power indicator turn off, and
turn on the DC switch of Solar Pump Inverter,
then reconnect the input side circuit breaker of
Power Pack.
Solar water
pump fail to
achieve full load
operation when
Power Pack
AC input side
circuit breaker is
on.
1. The voltage of
AC power source is
too low;
2.The input voltage
of solar panel is too
high, resulting in
grid
power
being
cut-off.
1. Boost voltage through transformer.
2. Turn off the DC switch of the power pack.
“GRID” indicator
light is yellow.
Solar power can
input, and grid
power cannot
input.
Grid is loss phase.
Grid cannot input.
Please check the connector between of grid and
power park.
“GRID” indicator
light is red.
Soft start is out of
order, Utility grid
power is pulled out,
and can’t access to
power pack.
The soft start module is out of order, please
contact the supplier to solve it.
“GRID” indicator
light is red, and
flash
Raditor
overheat/Temperat
ure sensor fault,
Utility Grid Power
can’t
access
to
power pack.
1.The ambient temperature is too high.
2.The raditor cooling problem of grid module,
please contact the supplier to solve it.
