Gree GWH12TB-K3DNA3B User manual

Change for Life
Split Air Conditioner
Owner's Manual
Residential Air Conditioners
Thank you for choosing Residential
manual carefully before operation and retain it for future reference.
Air Conditioners, please read this owner’s
MODEL: GWH12TB-K3DNA3B
GWH18TC-K3DNA1B
GWH18TC-K3DNA3B
GWH24TD-K3DNA1B
GWH24TD-K3DNA3B
GWH28TD-K3DNA1B
GWH28TD-K3DNA3B
GWH28TD-K3DNA1C
GWH24TD-K3DNA1C
GWH24TD-K3DNA3C
GWH24TD-K3DNA2C

CONTENTS
Operation and Maintenance
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Safety Precautions
■Operation Tips 19
■Name of Parts 4
■Operation of wireless remote controller 5
■14
Care and Cleaning
■16
Troubleshooting
Installation Service
■ 21
Notices for Installation
■ 24
Installation Drawing
■ . 25
Installation of Indoor Unit
■ 28
Installation of Outdoor Unit
■29
Check after Installation and Operation Test
■13
Emergency Operation
Do not dispose this product as unsorted municipal waste.
Collection of such waste separately for special treatment
is necessary.
Never attempt.
Be sure to follow this instruction
The physical product may differ from the drawing in this manual for different display.
If there are some differences between them, please refer to the physical product as
the standard.
This appliance is not intended for use by persons (including children) with reduced
physical, sensory or mental capabilities or lack of experience and knowledge,
unless they have been given supervision or instruction concerning use of the appliance
by a person responsible for their safety.
Children should be supervised to ensure they are away from the appliance.
■30
Installation and Maintenance of Healthy Filter
1
.......
■31
Configuration of connection pipe and additional volume of refrigerant

WARNING
Please read the following notices before operation
★
cut off power
If there's abnormal pheno-
If this abnormal status is kept
★
★
★
Safety Precautions
it may
on,air conditioner may be
damaged or even cause
electric shock or fire.
menon(like smell of burning),
please cut off the power imm-
ediately and then contact with
Gree authorized maintenance
center.
Do not operate the air cond-
itioner with wet hands.
Otherwise, it may cause electric
shock.
Do not cut off or damage the
power cord or signal control
wire. If the power cord or
signal control wire of air
conditioner is damaged,please
replace it by the professional
with specified power cord.
The special circuit must be
adopted for power supply to
avoid fire.
Do not use octopus multipurpose
socket or mobile wiring board for
wire connection.
Please cut off the power supply
when the air conditioner won't
be used for an extended
★
period of time.
Otherwise, it will accumulate
dust and it may cause overhe-
ating, fire and other accidents.
Do not damage the power
cord or use unspecified
power cord.
Otherwise, it may cause fire
due to overheating of power
Before cleaning the air con-
ditioner, please cut off the
★
Otherwise, it will cause electric
shock or injury.
Power supply should adopt
the special circuit with the
protection of air switch and
the capacity must be sufficient.
Pease do not turn on or turn
off the air conditioner
Y-type connection is adopted
for the power supply of this
air conditioner.If the power
cord is damaged, it must be
replaced by the manufacture,
maintenance center or a
similarly qualified person to
When the voltage is too high,
electric elements can be
damaged easily; if the voltage
too low, the compressor will
vibrate fiercely, which may
damage the cooling system
or compressor and electric
1
power.
★
frequently.
avoid a hazard.
★
cord.
★
components can't operate.

★
★
★
2
For safety, be sure to turn
off the circuit beaker before
★
★★
★
No earthing may cause electric
shock.
performing any maintenance
Accumulated dust may cause fire
or electric shock.
Select the most appropriate
temperature.
Keep room about
5 cooler than
outside.
It can save electric energy.
Do not keep windows and
doors open for a long time
during operation.
It will result in insufficient performance.
Do not block the air inlet or
outlet.
and cause malfunctions.
Keep combustible materials
away from the units at least
1m.
.noisolpxeroerifesuacyamtI
It may cause falling of the unit
and injury to the person.
Install the outdoor unit firmly
enough. Do not step on the top of the
outdoor unit or place heavy
things on it.
It may cause damage or injury
Do not attempt to repair the
air conditioner by yourself.
Incorrect repairs may cause electric
shock or fire.Please contact the
local authorized service center.
Always ensure effective
earthing.
or cleaning or when the
product is not used for an
extended period of time.
Safety Precautions
℃
It will result in insufficient performance
★★

3
★
Safety Precautions
Do not cut off or damage the power cords or
control cords. If they are damaged, please
contact the dealer or qualified service
personnel.
To change the airflow direction, adjust the vertical
and horizontal air flow direction by using the
remote controller.
Vertical Louver
Horizontal Louver
Do not insert your hands or objects into
the air inlet or outlet.
It may cause an accident.
Do not expose animals or plants directly to
the air flow.
Do not expose yourself to cold air directly
for a long time.
Do not use the unit for any other purpose, such
as preserving food or drying clothes.
Do not splash water on the air conditioner. Do not place a burner near the air conditioner.
It will cause CO toxicosis due to incomplete burning.
It may have a detrimental effect on them.
It's not good for your health.
It may cause electric shock or malfunction.
★
★★ ★★
★ ★★
★★

⑹
⑸
⑵
⑻
⑼
⑽
⑷
⑺
⑶
⑴Power cord
Front panel
Filter
Horizontal louver
Wall pipe
Binding tape
Connection Pipe
Drain hose
Drain connecter
Name of Parts
⑻
⑼
⑵
Indoor unit
⑹⑺
：Cool
：Dry
：Heat
：Set temp.
：Power
The icons displayed:
4
Air out
Outdoor unit
Air in
⑽
Air in
⑶
⑴
⑷
⑸
Air out
Remote controller

5
Name and function of wireless remote control
ON/OFF button
Remote controller
Signal transmitter
Don't drop or throw the remote control; Don't let any liquid in the remote control and
Note: Besure that there are no obstructions between receiver and remote control;
put the remote control directly under the sunlight or any place where is very hot.
Operation of wireless remote controller
●Press this button, the unit will be turned
on, press it once more, the unit will be
turned off. Sleep function will be canceled,
while unit off.
Warm tips: When operating buttons on the cover,
please make sure the cover is closed
completely.
TEMP button
TEMP
ON/OFF
AUTO
COOL
DRY
FAN
(o
As for cooling only unit, it won’t
have any action when it receives
the signal of heating operation.)
nly for cool ing and heating unit.
●Press this button, Auto, Cool, Dry, Fan,
Heat mode can be selected circularly.
MODE button
MODE
Auto mode is default while power on.
Under Auto mode,the temperature will not
be dis played; Under Heat m ode, th e
HEAT
initial value is 28 ℃; Under other
modes, the initial value is 25 ℃.
(oF)
82
(oF)
77
●
●
Press this button, Auto, Low, Medium-low ,
Medium, Medium-high, High speed can be
circularly selected. After
fan speed is default.
fan speed only
FAN button
FAN
powered on, Auto
Under DRY mode, Low
can be set up.
Medium fan
Low fan
High fan
Medium-low fan
Medium-high fan
Note: It’s Low fan speed under Dry mode.
AUTO
Press this button,the following temperature
can be setted circularly: the setting
temperature、indoor ambient temperature
and outdoor ambient temperature.when the
indoor unit firstly power on,it will display the
setting temperature .if the displaying
status is changed to ,displaying the
indoor ambient temperature. is the
outdoor ambient temperature.5s later it will
return to the setting temprature or it depends
on the other received signal within 5s.
Note: Outdoor ambient temperatue display
range is 0~60℃(32~99℉). As for the
outdoor ambient temperature below 0
it displays 0℃(32℉).

signal be displayed that denotes the
and signal will be displayed. If there is
signal will be constantly displayed and
signal blink and display. Within 5
6
Remote controller
Don't drop or throw the remote control; Don't let any liquid in the remote control and
put the remote control directly under the sunlight or any place where is very hot.
●Press this button, the clock can be set up,
CLOCK button
CLOCK
seconds, the value can be adjusted by
pressing or button, if continuously
press this button for 2 seconds above,
Operation of wireless remote controller
in every 0.5 seconds, the value on ten place
of Minute will be increased 1. During blinking,
repress the Clock button or Confirm button,
it denotes the setting succeeded. After
powered on, 12:00 is defaulted to display
is Timer value.
●
●
Press this button at unit On or Off status,
Light On and Light Off can be set up.
LIGHT button
LIGHT
After powered on, Light On is defaulted.
X-FAN button
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.
button can turn on or turn off the Turbo
TURBO button
TURBO
function. After the Turbo function turned
on, the signal of Turbo will display. The
signal will be automatically cancelled if
changing the mode or fan speed.
●Presetting temperature can be increased.
Press this button, the temperature can be
+ button
set up, continuously press this button
and hold for two seconds, the relative
contents can quickly change, until unhold
this button and send the order that the ℃
(oF) signal will be displayed all the time.
Th e tem per ature ad jus tment i s unava-
ilable under the Auto mode, but the order
Temperature of Celsius degree setting:
16-30 ; for Fahrenheit deg ree settin g:
61-86.
●Presetting temperature can be decreased.
Press this button, the temperature can be
- button
set up, continuously press this button
and hold for two seconds, the relative
contents can quickly change, until unhold
this button and send the order that the ℃
(oF) signal will be displayed all the time.
ailable under the Auto mode, but the order
QUIET QUIET button
●
Name and function of wireless remote control
+
-
current time value is Clock value,otherwise
Note:Be sure that there are no obstructions between receiver and remote control;
Under Cool or Heat mode,press this
can be sent by if pressing this button.
The temperature adjustment is unav-
can be sent if pressing this button.
Press this button, the Quiet status is
under the Auto Quiet mode (display
" " and “Auto”signal ) and Quiet mode
(display " " singal) and Quiet OFF
(there is no signal of " " displayed),
after pow ered o n, the Quiet OFF is
default ed.
signal).
Under the Quiet mode (Display
" "

Remote controller
buttons of this control which are not available to this unit will not be described below.
Operation of wireless remote controller
●One press this key to enter into TIMER
OFF setup, in which case the TIMER OFF
signittesfodohtemehT.knilblliwnoci
the sameas for TIMER ON.
TIMER OFF
TIMER OFF button
7
SWING LEFT AND RIGHT button
●Press this butt on to set swing angle,
which circul arly changes as below :
OFF
This remote controller is universal. If it
rece ives t hrees kinds of f ollowing stat u s,
the swing angl e will rema in o r igin al .
If guide louver is st opped when i t i s
swinging up
and down, it will remian its
prese n t po sition.
indicates guide louver swings back and
fort h
in the five places, as shown in the
figu re.
SWING UP AND DOWN button
●
Press this button to set left & right swing angle
cycling as below:
OFF
TIMER ON TIMER ON button
●
I FEEL button
●
●
Press this button once, to turn on the
I FEEL function , then the figure of "I FEEL"
will be displayed, after every press of
I FEEL
other function button, every 200ms to send
I FEEL once, after this function started,
the remote control will send temperature
to the main un it in every 10 minutes.When
repress this button, this function will be
turned off.
Timer On sett ing : Sign al “ON” will blin k
and displ ay , signal will conceal, the
nu mer ical sect ion will b ecome the timer
on sett ing stat us. During 5 sec onds blink,
by press ing ＋or －bu tton to adju st the
time valu e of nu mer ical sect ion, every
press of that bu tt on, the value will be
in creased o r decrease d 1 minu te. Hold
press ing ＋or －bu tt on, 2 sec onds l ater ,
it qui ck ly chang e, the way of change is:
During the ini tial 2.5 sec ond s, ten numbers
change in the one pl ace of minu te, then
the one pl ace is con sta nt, ten numbers
change in the tens pl ace of minu te at 2.5
sec onds speed and carry . During 5s blink,
press the Timer butt on, the timer sett in g
succee ds. The Timer On has been set up ,
repress the timer bu tt on, the Timer On
will be canceled. Bef ore sett ing the
HEALTHY AND SCAVENGING button
Press this button to achieve the on and
off of healthy and scavenging functions in
operation status. Press this button for the
first time to start scavenging f unction;
LCD displays“ ”. Press the button for the
seco nd time to start healthy and scav enging
functions simultaneously; LCD displays“ ”
and “ ” .
Press this button for the third
time to
simultaneously. Press the button for the
fourth time to start healthy function; LCD
display “ ” . Press this button again to
repeat
quit h ealthy and scav enging functions
the operation abov e.
/
Name and function of wireless remote control
This wireless remote control is universal, and it could be used for many units, some
Timer , please adjust the Clock to the
current actual time.
Note:Optional for some models.

8
●
●
Operation of wireless remote controller
SLEEP button
Press this button, can select Sleep 1 ( ), Sleep 2 ( ),
Sleep 3 ( ) and cancel the Sleep, circulate between
these, after electrified, Sleep Cancel is defaulted.
Sleep 1 is Sleep mode 1, in Cool, Dehumidify modes: sleep status
after run for one hour , the main unit setting temperature will
increase 1 ℃,
●Sleep 2 is sleep mode 2, that is air conditioner will run according to
the presetting a group of sleep temperature curve.
In Cool mode:
(1) When setting the initial temperature 16-23℃, after turned on
Sleep function, the temperature will be increased 1℃in every hour,
after 3 ℃the temperature will be maintained, after 7hours,
the temperature will be decreased 1℃, after that the unit will keep on
running under this temperature;
(2) When setting the initial temperature 24℃～27℃, after turned
on Sleep function, the temperature will be increased 1℃in every hour ,
after 2 ℃the temperature will be maintained, after 7hours,
the temperature will be decreased 1℃, after that the unit will
keep on running under this temperature;
(3) When setting the initial temperature 28 ℃～ 29℃, after turned
on Sleep function, the temperature will be increased 1℃in every
hour, after 1 ℃the temperature will be maintained, after 7hours,
the temperature will be decreased 1 ℃, after that the unit will
keep on running under this temperature;
(4) When setting the initial temperature 30 ℃, under this temper-
ature setting, after 7hours, the temperature will be decreased
1℃, after that the unit will keep on running under this temperature;
In Heat mode:
(1) Under the initial presetting temperature 16 ℃, it will run under
this setting temperature all along.
(2) Under the initial presetting temperature17℃～ 20℃, after Sleep
function started up, the temperature will decrease 1℃in every
hour, after 1 ℃decreased, this temperature will be maintained.
SLEEP
Name and function of wireless remote control
2 hours,setting temperature increased 2 ℃, the unit
will run at this setting temperature; In Heat mode: sleep status
after run for one hour, the setting temperature will decrease 1℃,
2 hours, setting temperature will decrease 2℃, then the unit will
run at this setting temperature.

9
+
Operation of wireless remote controller
SLEEP button
(3) Under the initial presetting temperature 21℃～27℃, after Sleep
function started up, the temperature will decrease 1℃in every hour,
after 2 ℃decreased, this temperature will be maintained.
(4) Under the initial presetting temperature 28℃～30℃, after
Sleep function started up, the temperature will decrease 1℃in
every hour, after 3 ℃decreased, this temperature will be maintained.
Sleep 3- the sleep curve setting under Sleep mode by DIY:
(1) Under Sleep 3 mode, press "Turbo" button for a long time, remote
control enters into user individuation sleep setting status, at this
time, the time of remote control will display "1hour ", the setting
(2) Adjust " " and " " button, could change the corresponding
setting temperature, after adjusted, press "Trubo "button for
confirmation;
(3) At this time, 1hour will be automatically increased at the timer
postion on the remote control, (that are "2 hours" or "3 hours"
(4) Repeat the above step (2) ～(3) operation, until 8hours
temperature setting finished, sleep curve setting finished, at this
time, the remote control will resume the original timer display;
temperature "88" will display the corresponding temperature of last
setting sleep curve and blink (The first entering will display
according to the initial curve se tting value of original factory);
or " 8 hours "), the place of setting temperature "88" will
display the corresponding temperature of last setting sleep curve
and blink;
temperature display will resume to original setting temperature.
●
●Sleep3- the sleep curve setting under Sleep mode by DIY could
be inquired:
The user could accord to sleep curve setting method to inquire
the presetting sleep curve, enter into user individuation sleep
setting status, but do not change the temperature, press "Turbo"
button directly for confirmation.
Note: In the above presetting or enquiry procedure, if continuously
within10s, there is no button pressed, the sleep curve setting
status will be automatically quit and resume to display the original
displaying. In the presetting or enquiry procedure, press "ON/OFF"
button, "Mode" button, "Timer"button or "Sleep" button, the sleep
curve setting or enquiry status will quit similarly.
SLEEP
-
Name and function of wireless remote control

10
timer on or timer off.
Guide for operation- general operation
Operation of wireless remote controller
★
This function indicates that moisture on evaporator of indoor unit will be blowed after the unit
About X-FAN function
is stopped to avoid mould.
1. Having set X-FAN function on: After turning off the unit by pressing ON/OFF button
indoor fan will continue running for about 10 min. at low speed. In this period,
press X-FAN button to stop indoor fan directly.
2. Having set X-FAN function off: After turning off the unit by pressing ON/OFF button,
the complete unit will be off directly.
Introduction for special function
When AUTO RUN mode is selected, the setting temperature will not be displayed on the
LCD, the unit will be in accordance with the room temp. automatically to select the
suitable running method and to make ambient comfortable.
About turbo function
If start this function, the unit will run at super-high fan speed to cool or heat quickly so
that the ambient temp. approachs the preset temp. as soon as possible.
★
★
About AUTO RUN
1. Press SLEEP button, to set sleep.
2. Press TIMER ON and TIMER OFF button, can set the scheduled
3. Press LIGHT button, to control the on and off of the displaying part
of the unit (This function may be not available for some units).
4. Press TURBO button, can realize the ON and OFF of TURBO function.
close automatically.)
5. Pressing and button, to select the swing.
4. Pressing FAN button, set fan speed, can select AUTO FAN, LOW,
MEDIUM-LOW, MEDIUM, MEDIUM-HIGH and HIGH.
3. Pressing or button, to set the desired temperature (It is
unnecessary to set the temp. at AUTO mode.)
2. Press MODE button, select desired running mode.
(Note: When it is powered on, the guide louver of main unit will
1. After powered on, press ON/OFF button, the unit will start to run.
Guide for operation- Optional operation
5
1
2

11
Press buttons simultaneously to lock or unlock the keyboard. If the remote controllerand
is locked, the icon
flicker for three times. If the keyboard is unlocked, the mark will disappear.
1. Press swing + and - button continuously more than 2s, the main unit will swing back
and forth from + to - , and then loosen the button, the unit will stop swinging and present
position of guide louver will be kept immediately.
2. Under swing + and - mode, when the status is switched from off to , if press this
button again 2s later, status will switch to off status directly; if press this button again
within 2s, the change of swing status will also depend on the circulation sequence stated above.
★About swing + and -
★
★
★
1. Press swing left and right button continuously more than 2s, the main unit will swing back
and forth from left to right, and then loosen the button, the unit will stop swinging and present
position of guide louver will be kept immediately.
2. Under swing left and right mode, when the status is switched from off to , if press this
button again 2s later, status will switch to off status directly; if press this button again
within 2s, the change of swing status will also depend on the circulation sequence stated above.
★About swing left and right
About lock
will be displayed on it, in which case, press any button, the mark will
Operation of wireless remote controller
About switch between Fahrenheit and Centigrade
Under status of unit off, press MODE and - buttons simultaneously to switch ℃and ℉.
★
About Quiet function
★
About Sleep function
Under the Fan and Auto mode, the Sleep function cannot be set up, under Dehumidify
mode, only Sleep 1 can be selected. Select and enter into any kind of Sleep mode, the
★
Quiet function will be attached and stared, different Quiet status could be optional and turned off.
Press “TEMP” and “CLOCK” simultaneously in COOL mode to start energy-saving function.
Nixie tube on the remote controller displays “SE”. Repeat the operation to quit the function.
Press “TEMP” and “CLOCK” simultaneously in HEAT mode to start 8℃Heating Function
.
Nixie tube on the remote controller displays “ ” and a selected temperature of “ 8℃”
(46 if Fahrenheit is adopted). Repeat the operation to quit the function.
Combination of " TEMP" and "CLOCK" buttons: About 8
Combination of " TEMP" and "CLOCK" buttons: About Energy-saving Function
℃Heating Function
℉
When quiet function is selected:
1. Under cooling mode: indoor fan operates at notch 4 speed. 10 minutes later or when
indoor ambient temperature≤28℃, indoor fan will operate at notch 2 speed or quiet
mode according to the comparison between indoor ambinet temperature and set
temperature.
2. Under heating mode: indoor fan operates at notch 3 speed or quiet mode according
to the comparison between indoor ambient temperature and set temperature.
3. Under dry, fan mode: indoor fan operates at quiet mode.
4. Under auto mode: the indoor fan operates at the auto quiet mode according to actual
cooling, heating or fan mode.

●
●
●
●
●
●
●
Operation of wireless remote controller
Changing batteries and notices
1. Slightly to press the place with , along the arrowhead
direction to push the back cover of wireless remote controller.
(As show in Fig 1. )
2. Take out the old batteries.
3. Insert two new AAA1.5V dry batteries, and pay attention
NOTE:
When changing the batteries, do not use the old or
different batteries, otherwise, it can cause the malf-
unction of the wireless remote controller.
If the wireless remote controller will not be used for a
long time, please take them out, and don't let the
leakage liquid damage the wireless remote controller.
It should be placed where is 1m away from the TV
set or stereo sound sets.
The operation should be in its receiving range.
If the remote control cannot operate normally, please
take the batteries out, and then reinsert it 30s later; if
If the main unit needs to be remote controlled, please
aim remote controller at the receiver of main unit in order
to improve the receiving sensitivity of the main unit.
When the remote controller sends out signal, a mark
will flicker for about 1s. The bell will ring if the main unit
receives effective signal.
it is also abnormal, please replace the batteries.
12
to the polarity. (As show in Fig 2.)
4. Attach the back cover of wireless remote controller.
Fig.1
Fig.2
Sketch map for
changing batteries

Mode Model Temperature setting Airflow rate
AUTO COOLING 25 ( COOL,FAN) AUTO
AUTO HEAT
℃
℃
℃
PUMP 25 ( COOL,FAN) AUTO
AUTO HEAT PUMP 20 ( HEAT) AUTO
13
Emergency Operation
When the remote controller is lost or damaged,
setting or fan speed can not
be change The manual switch can be operated
Turn on the unit: Press AUTO/STOP button to
enter AUTO mode.
The microcomputer will select the mode
(COOL, HEAT, FAN) automatically according
to the room temperature for reaching comfortable
effect.
Turn off the unit: Press the AUTO/STOP button to
switch off the unit.
Emergency Operation
●
●
Manual switch
The operation mode is seen in the following table.
●
This switch is to be applied when the remote controller is missing.
●
please use the manual switch on the main unit.
In that case, the unit will operate in AUTO mode
and the temperature
as below:

℃
Caution
Wipe the units with a dry soft cloth, or a cloth slightly moistened with water or cleaner (not with
volatile liquid such as thinner or gasoline).
Note:
Remove the front panel.
●
●
●
Disconnect the power supply before cleaning and maintenance.
Do not splash water on the units for cleaning, as electric shocks may occur.
Dip a piece of cloth into the water colder than 45 and dry it . Then wipe
the dirty part of front panel.
Note: Do not immerse the front panel into water so as to protect microcomputer components and circuit
diagram on the front panel.
Do not to touch the fin of indoor unit during cleaning to avoid personal injury.
Care and Cleaning
14
℃
②Clean the air filter
③
①Take down the air filter
Lift up the front panel.
Pull the air filter downwards to take it off,
as shown in Fig.(a, b).
Use a vacuum cleaner to remove dust.
If the filter are dirty, wash them with warm water
and a mild detergent.
Dry the filters in the shade.
Note: Never use water above 45 to clean the air
filter or it can cause deformation or discoloration.
Reinstall the air filter
Reinstall the filters along the direction of arrowhead.
Close the panel.
Cleaning the Air Filter (every 3 months)
Cleaning the Front Panel
( a)
(b)

15
①Be sure that nothing obstructs the air outlet and inlet.
②
③
①
②
③
④
Check before Use
Maintenance after Use
Switch off the power supply.
Clean the filter and
Clear obstructions from the outdoor unit.
Check if the batteries of remote controller are replaced.
Check if the installation stand of the outdoor unit is damaged.
If damaged, consult the technicians.
bodies of indoor and outdoor units.
Repaint the rubiginous place on the outdoor unit to prevent it from spreading.
Care and Cleaning

●
●
●
●
●
●
Troubleshooting
CAUTION
Phenomenon Troubleshooting
Waiting
The unit does not operate: The unit does not operate if it is turned on
immediately after it is turned off. This is to
Odours are emitted: Some odours may be emitted from the indoor
unit. This is the result of room smells (such as
furniture,tobacco,ect.) which have been taken
Consult authorized service center for cleaning
if the odours still exist.
"Water flowing" noise: The swishing noise like water flowing is the
refrigerant flowing inside the unit.
Mist is emitted in COOL mode: During cooling operation, a thin mist may be
seen emitted from the indoor unit due to high
room temperature and humidity .
After a period of time,
the mist will disappear with the decrease of
room temperature and humidity.
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The air conditioner is not user serviceable.Incorrect repair may cause electric shock or
fire so please contact an authorized service center for professional repair. Following
checks prior to contact may save your time and money.
Cracking noise:
This is the sound of friction caused by expansion
and/or contraction of panel or other parts due
to the change of temperature.
protect the unit. You should wait about 3
minutes.
into the air conditioner.

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Troubleshooting
Phenomenon Troubleshooting
The unit can not be started up: Is the power cut off?
Is the power plug loose?(If applicable)
Is the circuit protection device tripped off?
Is voltage higher or lower?
(Tested by professionals)
Is the TIMER correctly used?
Cooling/Heating effect is poor: Is temperature setting appropriate?
Is the inlet or outlet blocked?
Is the filter dirty?
Is low fan speed set?
Remote controller is not available:
The humidity is high .
Drain hose is loose.
Noise from indoor unit. The noise emitted when the fan or compressor
relay is switching on or off.
Breaking off
Are there heat sources in the room?
Check if there is magnetic or electrical interference
near the unit that may affecting operation of
the controller. In this case, pull the plug out and
reinsert it.
Is the remote controller within its operating range
or obstructed? Check the condition of the
batteries and replace them if necessary.
Check if the remote controller is damaged.
Water leakage of indoor unit :
Water leakage of outdoor unit :
Condensing water
overflows.
During cooling operation, water condensate is
generated around the pipes and connection joints.
During defrosting operation,the thaw water flows
out.
●During heating operation,the water on the heat
exchanger drips out.
When the defrosting operation is started or stopped,
there is a sound of refrigerant flowing in the
reverse direction.
Is the window or the door open?
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In HEAT mode, when the temperature of indoor
heat exchanger is very low, air flow is stopped
in order to prevent cold air. (Within 2 minutes)
In HEAT mode, when the outdoor temperature
is low or humidity is high, frost will be formed on
the outdoor heat exchanger. The unit will defrost
automatically and indoor unit will stop blowing
air for 3-12 minutes.
During defrosting operation, water or vapour may
be emitted.
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In DRY mode, the indoor fan will stop blowing air
for 3-12 minutes in order to avoid condensing
water being vaporised again.
If any one of the following situations occurs, immediately stop all operations,
cut off the power supply, and contact the authorized personnel
Strong odours are emitted during operation.
The air switch or protection switch often trips.
Power cord and power plug is overheating.
noitarepopotS
and cut off the power supply.
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Troubleshooting
Phenomenon Troubleshooting
Indoor unit can not blow air:
Moisture on air outlet :
C5:Malfunction of connector jumper:
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F1:Malfunction of indoor ambient temperature
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There is harsh sound during operation.
Water is leaking from the unit.
Water or other liquid is splashed into the unit.
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sensor
sensor
F2:Malfunction of evaporator temperature
H1:Defrosting
Buttons on the cover is unavailable or
insensitive
If the uni t operates at high humidity for a
long time, moisture will be generated on
the air outlet grill and then drip off.
Check if the connector jumper contacts
properly. If the PCB is to be replaced,
please take off the old for the new PCB.
Check if indoor room temperature sensor is
connected properly.
Check if the evaporator temperature is
connected properly.
It is normal.
Please check whether the cover is closed
completely.
H6: Indoor fan biock Check if the terminal of the indoor motor is
connected properly.
Replace the fan motor or the indoor board if
disabled
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