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9 Malfunction and Troubleshooting
9.1 Troubleshooting
Once malfunction or stop condition appears, the malfunction LED will lighten
up, LCD will display current malfunction or stop condition, current malfunction
will be recorded by the system for later inquire. Please refer to the form below
which covers the fault and troubleshooting.
Table9-1 Shutdown status and troubleshooting
Condition
code
Condition
Name
Phenomena
Cause
value
Troubleshooting
State 101
PV
Array
undervoltage
Inverter
shutdown when
the
fault
appeared
and
will
automatically
restart after it
disappear.
Out
put
energy
from array
changes.
Please check
the
input
voltage
from array and make
sure
this
voltage
inside inverter input
voltage range.
Note: In cloudy days,
morning, or down,
this situation is not
malfunction.
State 109
Dry alarm
Inverter
shut
down until the
water
level
recover
or
protection
recover time is
up, the machine
Water level
of source is
lower than
low-level
water level
sensor,
even lower
1. Please check the
water level, if the
water level is ok,
please check if there
are air inside pump.
2. Please check the
position
of
water
