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13. Fault codes
Fault codes
of frequency
controller
E1
E2
E3
E4
E5
E6
E7
EB
E9
E10
kinpumps.com
Corresponding
Fault indicator
faults
Lack of water
The water shortage indicator
continuously
illuminated.
The water shortage indicator
Dry running
flashing.
The pressure sensor fault indicator
Pressure
( )
is continuously
sensor failure
The voltage (current) fault indicator
Low voltage
( ) ) lights up.
The voltage (current) fault indicator
High voltage
( )
lights up.
High current
The voltage (current) fault indicator
( )
flashing.
Phase loss
The motor fault indicator
Locked-rotor
The motor fault indicator
Communication
EB or nothing is displayed in the LED
fault
display
area.
E9 is displayed in the LED display area.
1PM
is
overheated
The leakage fault indicator (
Leakage
Check water source and
(
)
is
water pressure.
Check if the air in the pump
body and vent the
Check if the inlet pipe
(
)
is
diameter is greater or equal
to that of outlet
Check the wiring of the
pressure sensor or replace
illuminated.
the pressure
Adjust the supply voltage to
0.9-1.1 times of rated value
range.
Adjust the supply voltage to
0.9-
1.1 times of rated value
range.
Unplug and plug in
1. Check whether the three-
phase winding of electric
motor is normal
2. Check whether the lead
( )
lights
up.
wire of frequency converter
and electric motor is open-
circuit.
Move the rotor rotate flexibly
(
)
flashing
.
or disassemble the pump body
to remove
Open the control box
and check whether the wire
between keypad and control
mainboard is plugged firmly.
Check whether the ambient
temperature of water pump is
too high.
) lights
up.
Check the water pump or
outlet pipeline for leakage.
SKT 1000
Solutions
system.
pipe.
sensor.
again.
debris.
cover,
18
GB
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