The motor overload has tripped out
The pump does
not run
Reset the motor starter overload. If it trips
again, check the voltage else call service
technician
PROBLEM
POSSIBLE CAUSE
SOLUTION
Check DC input wires connection
Indicator light is off
Indicator light is on
Inverter does not
work when powered
on
Cut of inverter input wires and check if
input voltage is abnormal
The inverter is defective
Check the inverter
The dry running protection has cut out
the pump due to low water level
Check the water level. If it is in order
check the water level electrodes/ level
switch
The pump’s submersible drop cable is
defective
Repair/replace the cable
6
30
Flow not sufficient
Operation voltage insufficient
Select an appropriate pump
Resize and increase the solar array
Solar array has not met design
requirements
The draw down is larger than anticipated
Increase the installation depth of the
pump, throttle the pump or replace it by
a smaller model to obtain a smaller
capacity
Wrong direction of rotation
Change direction of rotation
The valves in the discharge pipes are
partly closed or blocked
Check and clean or replace the valves
and discharge pipe
The non-return valve of the pump is
partly blocked
Pull out the pump. Check and clean or
replace the pump if necessary
The pump is defective
Repair or replace the pump
Leakage in the pipework
Check and repair the pipe work
Wires loosely connected
High operation
frequency but no
water yield
Tighten wires and check if firmly
connected
Select an appropriate pump
Pump is running in reverse
Check connections
Installation head is more than pump
maximum lift
Dirt in the pump
Clean the pump
Содержание SUNVERTER 3
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