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3
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5
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6
3
4
6
5
11
12
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7
9
10
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7
8
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8
9
14
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11
12
13
14
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TURBO
SLEEP
LIGHT
Press it to turn on/off the light.
25
24
23
22
21
15
16
20
17 18 19
15
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pump models) will show.
16
SLEEP icon :
is displayed by pressing the SLEEP button. Press this button again to clear the display.
17
TEMP icon:
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(set temperature),
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displayed circularly.
18
Up & down swing icon:
is displayed when pressing the up & down swing button. Press this button again to clear the display.
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LIGHT icon:
20
LOCK icon:
is displayed by pressing the LIGHT button.Press LIGHT button again to clear the display.
is displayed by pressing "+" and “-” buttons simultaneously.Press them again to clear the display.
21
SET TIME display:
After pressing TIMER button, ON or OFF will blink.This area will show the set time.
22
TURBO icon:
is displayed when pressing theTURBO button.Press this button again to clear the display.
23
DIGITAL display:
This area will show the set temperature. In SAVE mode,"SE" will be displayed. During defrosting operation, “H1” will be displayed.
24
X-FAN icon:
25
FAN SPEED display:
is displayed when pressing the X-FAN button. Press this button again to clear the display.
Press FAN button to select the desired fan speed setting(AUTO Low-Med-High).Your selection will be displayed in the LCD windows,
except the AUTO fan speed.
1
ON/OFF:
Press this button to turn on the unit. Press this button again to turn off the unit.
2
MODE:
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following:
AUTO COOL
DRY FAN
HEAT*
*Note: Only for models with heating function.
After energization, AUTO mode is defaulted. In AUTO mode, the set temperature will not be displayed on the LCD, and the unit will
automatically select the suitable operation mode in accordance with the room temperature to make indoor room comfortable.
3
+:
Press this button to increase set temperature. Hold it down for above 2 seconds to rapidly increase set temperature. In AUTO mode,
set temperature is not adjustable.
4
-:
Press this button to decrease set temperature. Hold it down for above . 2 seconds to rapidly decrease set temperature. In AUTO
mode, set temperature is not adjustable.
5
FAN :
This button is used for setting fan speed in the sequence that goes from AUTO,
,
,
to then back to Auto.
AUTO
Low speed
Medium speed
High speed
6
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OFF
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or
is sent out, the unit will carry out the command as
indicates the guide louver swings as:
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TIMER ON:
Press this button to initiate the auto-ON timer. To cancel the auto-timer program, simply press this button again. After pressing this
button,
disappears and "ON" blinks . 0 0:00 is displayed for ON time setting. Within 5 seconds, press + or - button to adjust the
time value. Every press of either button changes the time setting by 1 minute. Holding down either button rapidly changes the time
setting by 1 minute and then 10 minutes. Within 5 seconds after setting, press TIMER ON button to confirm.
8
TIMER OFF:
Press this button to initiate the auto-off timer. To cancel the auto-timer program, simply press the button again.TIMER OFF setting is
the same as TIMER ON.
9
CLOCK :
Pressing CLOCK button,
blinks. Within 5 seconds, pressing + or - button adjusts the present time. Holding down either button
above 2 seconds increases or decreases the time by 1 minute every 0.5 second and then by 10 minutes every 0.5 second. During
blinking after setting, press CLOCK button again to confirm the setting, and then
10
will be constantly displayed.
X-FAN:
Pressing X -FAN button in COOL or DRY mode,the icon
is displayed and the indoor fan will continue operation for 10 minutes in
order to dry the indoor unit even though you have turned off the unit.
After energization, X-FAN OFF is defaulted. X-FAN is not available in AUTO, FAN or HEAT mode.
11
TEMP:
Press this button, could select displaying the indoor setting temperature or indoor ambient temperature.When the indoor unit firstly
power on it will display the setting temperature, if the temperature's displaying status is changed from other status to"
",displays
the ambient temperature, 5s later or within 5s, it receives other remote control signal that will return to display the setting temperature. if the users haven't set up the temperature displaying status,that will display the setting temperature.
12
TURBO:
Press this button to activate / deactivate the Turbo function which enables the unit to reach the preset temperature in the shortest
time. In COOL mode, the unit will blow strong cooling air at super high fan speed. In HEAT mode, the unit will blow strong heating air
at super high fan speed.
13
SLEEP:
Press this button to go into the SLEEP operation mode. Press it again to cancel this function. This function is available in COOL,
HEAT (Only for models with heating function) or DRY mode to maintain the most comfortable temperature for you.
14
LIGHT:
Press LIGHT button to turn on the display's light and press this button again to turn off the display's light. If the light is turned on ,
is displayed. If the light is tunrned off,
disappears.
15 Combination of "+" and "-" buttons: About lock
Press "+ " and "-" buttons simultaneously to lock or unlock the keypad. If the remote controller is locked,
case, pressing any button,
is displayed. In this
blinks three times.
16 Combination of "MODE" and "-" buttons:About switch between Fahrenheit and Centigrade At unit OFF, press "MODE" and "- "
buttons simultaneously to switch between ℃ and ℉.
Replacement of Batteries
1.Remove the battery cover plate from the rear of the remote controller.
(As shown in the figure)
2.Take out the old batteries.
3.Insert two new AAA1.5V dry batteries, and pay attention to the polarity.
4. Reinstall the battery cover plate.
★Notes:
●When replacing the batteries, do not use old or different types of batteries.
Otherwise, it may cause malfunction.
●If the remote controller will not be used for a long time,
please remove batteries to prevent batteries from leaking.
●The operation should be performed in its receiving range.
●It should be kept 3.3ft. away from the TV set or stereo sound sets.
●If the remote controller does not operate normally, please take the
batteries out and reinsert them after 30 seconds. If it still can't operate
properly, replace the batteries.
Sketch map for
replacing batteries
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The breaker trips at once when it
is set to “ON”.
Air conditioner can not
start up
Trip of breaker or
blow of fuse
The air conditioner does not
react after it is
powered ( after
the plug is
inserted, the
buzzer does not
sound and the
remote startup
has no
response)
to ground to see if there is any
leakage.
The breaker trips in few minutes
when it is set to “ON”.
The circuit or the part of the air
conditioner has malfunction.
They heat and break the insulation and lead to short circuit or
creepage. Measure the insulation resistance or eliminate the
malfunction one by one. If the
breaker itself has malfunction,
then replace the breaker.
No power
Check power supply circuit.
Power plug is not well plugged in
and poor connection.
Check if the plug is properly
plugged in and make the loose
contact firm.
Fuse of controller burnt out
Change controller fuse
The transformer connection is
loose or has bad contact or the
transformer has malfunction.
Fasten the wiring; measure the
output voltage of the transformer , if it is incorrect, change
the transformer.
Controller is broken
Check remote controller
Remote controller is short of power
The remote
controller does
not receive
signals (after it
is powered, the
buzzer will
sound, unless it
has
malfunction)
Measure insulation resistance
Remote controller malfunction
Receiver loose or poor connection
Receiver is broken
Power voltage is too low
Change batteries
First, press the manual switch
button AUTO,if there is no
response,check based on the
above methods. If it runs normally after pressing the button,
check again whether the installation position and the connection wire of the reception head
is correct. If it is correct,then replace the receiver or the remote
controller.
Check the voltage. If it is lower than 10% of
the rated voltage, check the cause, improve
the power supply condition and add the stabilized voltage power supply.
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Improper set of temperature
Adjust set temperature
If cooling (heating) load is
Check the forecasted load of cooling (heating)
proper
The refrigerant has leakage or is
insufficient
Check and fill the leakage, then
vacuumize it and supplement the refrigerant as required
Leakage between the high presMalfunction of
refrigerant
flow
sure and the low pressure in-
Malfunction of four-way valve
Local block of capillary
Poor COOL(HEAT) operation
Replace the compressor
side the compressor
Replace the four-way valve
Replace the capillary
Judge whether the system is blocked by
Blockage of cooling system
observing the condensation of evaporator and the pressure value of the high
pressure manometer and take measures
to deal with the system.
Heat insulation for the connection
pipes of the indoor unit and the outdoor unit is bad.
Make sure that heat insulation for the thick and thin pipes
is good. Heat insulation must also be provided for the
joint andthe exposed part of the copper pipe .
Block of outdoor heat exchanger
Clean the dust accumulated on the surface of
the heat exchanger.
Air filter were blocked
Clean the filter
Fan speed was set too slow
Air circulation
is insufficient
Fan rotation speed becomes
low
To set the fan speed to high or
middle speed
Capacitor
Replace the capaci-
damage
tor
Motor damage
Replace the motor
The installation position of the
Good ventilation must be provided for the
outdoor unit is not appropriate.
installation position of the outdoor unit.
The outdoor temperature is too high.
Properly install the rainproof plate or the sunproof plate. If the
maximum cool air still can not meet the requirement, it is suggested to replace the air conditioner.
The air tightness is not enough. People
come in and out too frequently. There
are heating devices indoors.
Keep certain air tightness indoors, try not to use
electricalappliance with large quantity of heat
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The indoor fan motor is burned or
breaks or has the heat protector
malfunction.
Replace the fan motor or the defective part.
The fan does not
The built-in heat protector of the
motor breaks frequently because the
Replace the fan motor
run when it is set
to supply air.
motor is abnormal.
Wrong connection
The fan capacitor has open circuit or
is damaged.
Make the correction connection based on
the circuit drawing.
Replace the fan capacitor of the same type
and same specification.
In the cooling and
The outdoor fan motor is damaged.
Replace the fan motor
heating mode,
the compressor
Wrong connection
Make the correct connection based on the
circuit drawing
The outdoor fan capacitor is damaged.
Replace the fan capacitor
runs, but the outdoor fan does not
run.
Malfunction of compressor
Replace the compressor
Breakage of running capacitor of
In the cooling
and heating
mode, the
outdoor fan
runs, but the
compressor
does not run.
compressor
The voltage is too low or too
high.
Wrong wire connection
The protector itself has malfunction.
The refrigerant is not enough or is too
much.
The compressor is too hot
and leads to the
action of the
protector.
Replace the capacitor
Manostat is recommended.
Connect the circuit diagram correctly
Use the multimeter to check whether the
contact of the compressor is on when it is
not overheated. If it is not on, then replace
the protector
Adjust the volume of the refrigerant
The capillary is blocked and the temperature rises.
Replace the capillary
The compressor does not run
Replace the compressor
smoothly or is stuck. The air discharge
valve is damaged
The protector itself has malfunction.
Replace the protector
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The torque of the swing motor is not
enough
The swing fan
does not run.
Wrong connection
First, check whether the connection is
wrong. If no, replace the parts
The controller is damaged(IC2003 is
damaged, the swing relay can not
close, etc)
Controller malfunction (IC2003
broken, creepage of parallel capaci-
Change controller
In cool, heat
mode, the
tor of relay loop, relay is broken etc.)
outdoor unit
and compres-
Wire loose or wrong connection
Correctly wire according to the drawing
Improper setting of temperature
Adjust setting temp.
Drainage pipe blocked or broken
Change drainage pipe
Wrap of refrigerant pipe joint is not
Re-wrap and make it tight.
sor will not run.
Water leakage
close enough.
Fan of indoor unit contacts other parts
Foreign object in indoor unit
Compressor shakes too much
Adjust fan location
Take out the foreign object
Adjust support washer of compressor, and
tighten loosen screws
Abnormal sound
and shake
Touch of pipeline of outdoor unit
Separate the touching pipeline.
Touch of inner plates
1. Tighten connect screw.
2. Stick absorbing clay between plates.
Louver of outdoor unit touched outer
case.
Adjust location of louver.
Abnormal sound inside compressor
Change compressor
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Turn on the unit
and wait 1 minute
Use DC voltmeter
to measure the
voltage on the two
ends of electrolytic
capacitor
Voltage higher than 200V?
Y
Fault with the voltage
testing circuit on
control panel AP1
Replace the control
panel AP1
N
Measure the AC voltage between
terminalL and N on wiring board
XT(power supply)
Voltage within
210VAC~250VAC?
N
Shut down the power
and repair the power
supply to restore the
range
210VAC~250VAC
power on and
restart the unit
If the fault is
eliminated?
Y
Y
Shut down the power and wait 20 minutes;
or use DC voltmeter to measure the voltage
on the two ends of capacitor (test3), until
the voltage is lower than 20V
N
Check the
connection of reactor
(L in the Electrical
Wiring Diagram)
If the wiring of
reactor Lis normal?
N
Connect the reactor
Laccording to Electrical Wiring Diagram correctly
Re-energize and
turn on the unit
Y
Replace the control
panel AP1
End
N
If the fault is
eliminated?
Y
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Energize and
switch on
IPM protection
occurs after the
machine has run for
a period of time?
Y
Use AC voltmeter
to measure the
voltage between
terminal L and N
on the wiring
board XT)
If the voltage
between terminal L
and N on wiring
board XT is within
210VAC~250VAC?
N
Check the supply
voltage and
restore it to
210VAC~250VAC
Y
Restart the unit. Before
protection occurs,
use DC voltmeter to
measure the voltage
between the two
ends of electrolytic
capacitor on control
panel AP1 (test3)
Voltage between
the two ends of celectrolytic
capacitor (test3) is
higher than
250V
Y
Please confirm:
1. If the indoor and
outdoor heat
exchangers are
dirty? If they are
obstructed by other
objects which affect
the heat exchange
of indoor and
outdoor unit.
2. If the indoor and
outdoor fans are
working normally?
3. If the environment
temperature is too
high, resulting in
that the system
pressure is too high
and exceeds the
permissible range?
4. If the charge
volume of
refrigerant is too
much, resulting in
that the system
pressure is too
high?
5. Other conditions
resulting in that the
system pressure
becomes too high.
The connection
of capacitor C2
is loose.
Reconnect the
capacitor C2 according
to Electrical Wiring
Diagram. Then,
Restart the
unit.
Y
N
Stop the unit and
disconnect the power
supply. Wait 20 minutes,
or use DC voltmeter to
measure the voltage
between the two ends of
capacitor C2, until the
voltage is lower than 20V
Remove the wires
on the two ends of
capacitor C2. Then,
use capacitance
meter to measure
the capacitor C2.
Verify as per the
Parameters Sheet.
If capacitor
C2 is failed?
Replace the capacitor
C2. Then, energize
and start the unit.
Y
Replace the
control panel AP1
N
If there is any
abnormality
described above?
Y
Y
Connect the control panel
AP1 and compressor
COMP correctly according
to the Electrical Wiring
Diagram. Then, energize
and start the unit.
If the
resistance is
normal?
N
N
If the unit can
work normallv?
If the unit can
work normally?
Y
Y
N
Take corrective actions
according to Technical
Service Manual, and
then energize and start
the unit.
Replace the
control panel AP1
N
Use ohmmeter to
measure the resistance
between the three
terminals on compressor
COMP, and compare the
measurements with the
compressor resistance on
Service Manual.
Y
N
Stop the unit and
disconnect the power
supply. Then, check
the connection of
capacitor C2
according to Electrical
Wiring Diagram.
Refer to the
Electrical Wiring
Diagram and check
if the connection
between AP1 and
COMP is loose and if
the connection order
is correct.
If the connection
between AP1 and
COMP is unsecure
or the connection
order is wrong?
If the unit can
work
normally?
N
If the unit can
work
normally?
If the unit can
work normally?
Y
N
Y
Replace the
compressor
COMP
N
Use ohmmeter to
measure the resistance
between the two
terminals of compressor
COMP and copper tube.
Resistance higher
than 500MΩ?
Y
Replace the
control panel
AP1
END
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Overheat and high
temperature protection
Is outdoor ambient temperature higher than 53?
Y
Normal protection, please operate
it after the outdoor ambient temperature is normalized.
N
20 minutes after the complete
unit is powered off.
Is heat dissipation of the indoor unit
and outdoor unit abnormal?
Y
Improve the heat
dissipation environment of the unit
N
Does the outdoor fan work normally?
N
1. Check if the fan terminal OFAN
is connected correctly
2. Resistance between any two
terminals is measure by an ohm
gauge and should be less than 1K
Ohm.
Y
Replace the fan
capacitor C1
Replace the
control panel AP1
Replace the
outdoor fan
End
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Power on the unit
Is stop time of the compressor
longer than 3 minutes?
Restart it up after
3 minutes
N
Y
Does startup fail?
Y
Are the wires for the compressor connected
correctly? Is connection sequence right?
N
Connect the wires as
per the connection
diagram
Y
Replace the control panel AP1
N
If the fault is eliminated?
N
Replace the
compressor
Y
End
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Out of step occurs once the
unit is powered on.
Out of step occurs in
operation
Is stop time of the
compressor longer than
3 minutes?
Is the outdoor fan working
normally?
Is the outdoor unit blocked
by foreign objects?
Are the wires for the compressor connected
correctly? Is connection sequence right?
Is the connection made in clockwise
direction?
Replace the
control panel AP1
Connect the
wires correctly
Replace the control
panel AP1
If the fault is eliminated?
If the fault is eliminated?
Replace the
compressor
Replace the
compressor
End
End
Check if the fan terminal
OFAN is connected correctly
Replace the fan
capacitor C1
Replace the
outdoor fan
Remove foreign objects
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20 minutes after the
complete unit is
powered off
Is the terminal FA for the
electronic expansion valve
connected correctly?
Connect the
wires correctly
Resistances between the first four pins
close to the terminal hole and the fifth
pin are almost the same, less than 100
ohm.
Replace the electronic
expansion valve
If the fault is eliminated?
Replace the
control panel
AP1
If the fault is eliminated?
Coolant leakage, refilling
the coolant
End
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Start
Check wiring of the
reactor (L) of the
outdoor unit and the
PFC capacitor
Whether there is any
damage or
short-circuit?
Y
Replace it as per the
wiring diagram and
reconnect the wires
If the fault is eliminated?
N
Remove the PFC capacitor
and measure resistance
between the two terminals.
Is the resistance around zero?
N
Y
The capacitor is
short circuited and
the capacitor
should be replaced
Restart the unit
If the fault is eliminated?
Y
N
Disconnect the terminals for the
reactor and measure the resistance
between the two terminals of the
reactor by an ohm gauge
Whether there is any damage
or short-circuit?
N
Y
Replace the reactor
Restart the unit
If the fault is eliminated?
Y
N
Replace the control
panel AP1
N
Y
End
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Start
Y
Did the equipment operate
normally before the failure
occurs?
N
Check the wiring of the indoor and
outdoor units with reference to the
wiring diagram
Check wiring inside of
the indoor and outdoor
units
Y
Is the connection right?
N
N
The AP1 voltage
detection circuit
is at fault
Y
Correctly connect the
corresponding wires for
the indoor and outdoor
units with reference to
the wiring diagram
Are wires broken?
N
If the fault is eliminated?
N
Check the communication
circuit of the outdoor unit
If the fault is eliminated?
The communication
circuit is abnormal
Y
N
Replace the main board
AP1 of the outdoor unit
If the fault is eliminated?
N
Replace the main board
of the indoor unit
Y
Y
End
Y
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Start
Measure voltage at the
Test 10 position as
shown in the diagram
with a voltmeter
Value jumping
N
Y
Measure voltage at the
Test 15 position as
shown in the diagram
with a voltmeter
Y
Value jumping
N
Y
Fault with
outdoor unit
Measure voltage at the
Test 11 position as
shown in the diagram
with a voltmeter
Value jumping
End
N
Y
Measure voltage at the
Test 12 position as
shown in the diagram
with a voltmeter
N
Value jumping
Y
The communication
circuit of the outdoor
unit is normal
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