Haier HSU-18HEA13 User manual

Please read this operation manual before using the air conditioner.
SPLIT TYPE ROOM AIR CONDITIONER
OPERATION MANUAL
0010522564
HSU-18HEA13(T3)
HSU-18HEA03(T3)
HSU-18LEA13(T3)
HSU-18LEA03(T3)
HSU-12HEB03

Before disposing an old air conditioner that
goes out of use, please make sure it's inop-
erative and safe. Unplug the air conditioner
in order to avoid the risk of child entrapment.
It must be noticed that air conditioner system
contains refrigerants, which require speciali-
zed waste disposal. The valuable materials
contained in an air conditioner can be recycled
.Contact your local waste disposal center for
proper disposal of an old air conditioner and
contact your local authority or your dealer if
you have any question. Please ensure that
the pipework of your air conditioner does not
get damagedprior to being picked up by the
relevant waste disposal center, and contribute
to environmental awareness by insisting on an
appropriate, anti-pollution method of disposal.
Cautions
Disposal of the old air conditioner
All the packaging materials employed in the
package of your new air conditioner may be
disposed without any danger to the
environment.
The cardboard box may be broken or cut into
smaller pieces and given to a waste paper
disposal service. The wrapping bag made of
polyethylene and the polyethylene foam pads
contain no fluorochloric hydrocarbon.
All these valuable materials may be taken to
a waste collecting center and used again after
adequate recycling.
Consult your local authorities for the name
and address of the waste materials collecting
centers and waste paper disposal services
nearest to your house.
Disposal of the packaging of your
new air conditioner
Before starting the air conditioner, read the
information given in the User's Guide caref-
ully. The User's Guide contains very impor-
tant observations relating to the assembly,
operation and maintenance of the air
conditioner.
The manufacturer does not accept respon-
sibility for any damages that may arise due
to non-observation of the following
instruction.
Damaged air conditioners are not to be
put into operation. In case of doubt, consult
your supplier.
Use of the air conditioner is to be carried
out in strict compliance with the relative
instructions set forth in the User's Guide.
Installation shall be done by professional
people, don't install unit by yourself.
For the purpose of the safety,the air con-
ditioner must be properly grounded in acco-
rdance with specifications.
Always remember to unplug the air
conditioner before openning inlet grill. Never
unplug your air conditioner by pulling on
the power cord. Always grip plug firmly and
pull straight out from the outlet.
All electrical repairs must be carried out
by qualified electricians. Inadequate repairs
may result in a major source of danger for
the user of the air conditioner.
Safety Instructions and Warnings
Do not damage any parts of the air
conditioner that carry refrigerant by piercing
or performating the air conditioner's tubes
with sharp or pointed items, crushing or
twisting any tubes, or scraping the coatings
off the surfaces. If the refrigerant spurts
out and gets into eyes, it may result in
serious eye injuries.


3. If the fuse of indoor unit on PC board is
broken,please change it with the type of
T. 3.15A/ 250V.
Do not obstruct or cover the ventilation
grille of the air conditoner.Do not put fingers
or any other things into the inlet/outlet and
swing louver.
Do not allow children to play with the air
conditioner.In no case should children be
allowed to sit on the outdoor unit.
The refrigerating circuit is leak-proof.
1.Applicable ambient temperature range:
Specifications
The machine is adaptive in following
situation
10 .The power plug and connecting cable
must have acquired the local attestation.
2. If the power supply cord is damaged, it
must be replaced by the manufacturer
or its service agent or a similar qualified
person.
4. The wiring method should be in line with
the local wiring standard.
5. After installation, the power plug should
be easily reached.
6. The waste battery should be disposed
properly.
7. The appliance is not intended for use
by young children or infirm persons
without supervision.
8. Young children should be supervised
to ensure that they do not play with
the applience.
9.Please employ the proper power plug,
which fit into the power supply cord.
Cautions
11.In order to protect the units,please turn
off the A/C first, and at least 30 seconds
later, cutting off the power.
2
For: 220-230V~, 50Hz
For: 220V~, 60Hz
Cooling
Indoor
Maximum:D.B/W.B 32oC/23oC
52oC/31oC
18oC
18oC/14oC
Maximum:D.B/W.B
Minimum:D.B
Minimum:D.B/W.B
Outdoor
Indoor
Outdoor
Maximum:D.B
Minimum:
D.B/W.B
Maximum:
D.B
Minimum:D.B
27oC
27oC/18oC
15oC
-7oC
Heating
Cooling
Heating
Indoor
Outdoor
Indoor
Outdoor
Maximum: D.B / W.B
Minimum: D.B / W.B
Maximum: D.B / W.B
Minimum: D.B
Maximum: D.B
Minimum: D.B
Maximum: D.B / W.B
Minimum: D.B / W.B
29oC/19oC
18oC/14oC
54oC/24oC
18oC
27oC
15oC
24oC/18oC
-7oC/-8oC

Cautions
STRICT
ENFORCEMENT
Safety Instruction
Installation
WARNING
Please read the following Safety Instructions carefully prior to use.
The instructions are classified into two levels, WARNING and CAUTION according to
the seriousness of possible risks and damages as follows. Compliance to the
instructions are strictly required for safety use.
Please call Sales/Service Shop for the Installation.
Do not attempt to install the air conditioner by yourself because improper works
may cause electric shock, fire, water leakage.
lnstallation in a inadequate place may cause accidents. Do not install in the
following place.
Connect the earth
cable.
earthing
Do not install in the
place where there is
any possibility of
inflammable gas
leakage around the
unit.
Do not get the unit
exposed to vapor
or oil steam.
Check proper
installation of the
drainage securely
PROHIBITION PROHIBITION
CAUTION


Cautions
WARNING
When abnormality such as burnt-small found,
immediately stop the operation button and
contact sales shop.
OFF
Use an exclusive power source with a
circuit breaker
ENFORCEMENT
Connect power supply cord
to the outlet completely Use the proper voltage
Do not use power supply cord
in a bundle.
Take care not to damage
the power supply cord.
Do not use power supply cord
extended or connected in halfway
STRICT
ENFORCEMENT
STRICT
STRICT
ENFORCEMENT PROHIBITION
PROHIBITION PROHIBITION
PROHIBITION
Do not start or stop the
operation by disconnecting
the power supply cord and so on.
Do not channel the air flow directly
at people, especially at infants or
the aged.
Do not try to repair or reconstruct
by yourself.
Do not use for the purpose of storage of
food, art work, precise equipment,
breeding, or cultivation.
CAUTION
Take fresh air occasionally especially
when gas appliance is running at the
same time.
PROHIBITION
STRICT
ENFORCEMENT
Do not operate the switch with
wet hand.
PROHIBITION
PROHIBITION
PROHIBITION PROHIBITION
PROHIBITION
Do not install the unit near a fireplace
or other heating apparatus. Check good condition of the
installation stand
Do not pour water onto the unit
for cleaning
PROHIBITION
Do not place animals or plants in
the direct path of the air flow Do not place any objects on or
climb on the unit.
Do not place flower vase or water
containers on the top of the unit.
Do not insert objects into the air
inlet or outlet.
PROHIBITION
PROHIBITION
PROHIBITION
4

Parts and Functions
Indoor Unit
OUTLET
INLET
CONNECTING PIPING AND ELECTRICAL WIRING
DRAIN HOSE
Outdoor Unit
HSU-18HEA13(T3)
Actual inlet grille may vary from the one shown in the manual according to
the product purchased
Display board
Inlet
Air Purifying Filter
Horizontal flap
(adjust up and down air flow.
Don't adjust it manually)
Air filter(inside)
Inlet grille Power plug
(inside)
Outlet
(adjust left and right air flow)
Vertical blade
Anion generator
(inside)
5
HSU-18HEA03(T3)
HSU-18LEA13(T3)
HSU-18LEA03(T3)
HSU-12HEB03

Parts and Functions
NOTE:
1. Operation mode display
24. HEALTH
Used to operate the healthy function.
Hints
After replacing with new batteries, remote controller will conduct self-check, displaying
all information on LCD.Then, it will become normal.
Display board
25
Operation mode AUTO FAN
COOLDRY
Remote controller
Display board
25.
Singal receiver hole
26. Ambient temp.display
When receiving the remote control signal, display
the set temperature and in the rest time the room
temperature is displayed and this room temperature
is only for reference.
26 23
178
1
Remote controller
Clock set
When unit is started for the first time and after replacing batteries in remote controller,
clock should be adjusted as follows:
Press CLOCK button, "AM" or "PM" flashes.
Press or to set correct time. Each press will increase or decrease 1min. If the
button is kept depressed, time will change quickly.
After time setting is confirmed,press SET,"AM "and "PM" stop flashing,while clock starts working.
9
HEAT
1
Cooling only unit do not have displays and functions related with heating
.
2. SWING display
3.FAN SPEED display
4. SLEEP display
5. LOCK display
6. SIGNAL SENDING
7.TIMER OFF display
8. TIMER ON display
9. CLOCK display
10. TEMP display
11. POWER ON/OFF
Used for unit start and stop.
12. MODE
Used to select AUTO run, COOL,DRY
HEAT and FAN operation
13. FAN
Used to select fan speed LO, MED, HI, AUTO
14. HOUR
Used to set clock and timer setting.
15. SWING
Used to set auto fan direction.
16. SLEEP
Used to select sleep mode.
17. LOCK
Used to lock buttons and LCD display.
18. TEMP.SETTING
Used to select your desired temp.
19. SET
Used to confirm timer and clock settings.
20. TIMER
Used to select TIMER ON,TIMER OFF,
TIMER ON-OFF
21. CLOCK
Used to set correct time
22. RESET
normal condition.
Used to reset the controller back to
LO MED HIAUTO
1
2
3
5
6
7
8
9
10
4
ON/OFF
HEALTH
FAN
MODE
SWING
TIMER
CLOCK
SET SLEEP
LOCK RESET
11
12 14
15
16
17
13
18
19
20
21
22
24
23
23. HEALTH display
6

Operation
Remote controller's operation
When in use, put the signal transmission head
directly to the receiver hole on the indoor unit.
The distance between the signal transmission
without any obstacle as well.
Don't throw the controller, prevent it from being damaged.
r
When electronic-started type fluorescent lamp or change-over
type fluorescent lamp or wireless telephone is installed in the room, the
receiver is apt to be disturbed in receivering the signals so the distance
to the indoor unit should be shorter.
Loading of the battery
Load the batteries as illustrated. 2 R-03 batteries, resetting key (cylinder)
Remove the battery cover:
Slightly press " " and push down the cover.
Load the battery:
Be sure that the loading is in line with the" + "/"-"
pole request as illustrated.
Put on the cover again
Confirmation indicator:
In disorderation, reload the batteries or load the new batteries after 6 mins.
Note:
Use two new same-typed batteries when loading.
If the remote controller can't run normally or doesn't work at all,
use a sharp pointed item to press the reset key.
Hint:
Remove the batteries in case unit won't be in usage for a long period.
If there are any display after taking-out just need to press reset key.
Power failure resume(please set and apply as necessary)
If sudden power failure occurs, the unit will resume original operation when
power is supplied again.
Note: When sudden power failure happens during unit operation in power failure resume
off the power supply in case that the unit automatically resume operation when
power is resupplied, or press ON/OFF to turn off the unit when power resumes.
mode, if the air conditioner is not desired for use in a long period, please shut
7
head and the receiver hole should be within 7m
ON/OFF
HEALTH
FAN
MODE
TIMER
CLOCK
SETSLEEP
LOCKRESET
SWING

(5) Unit stop
(1) Unit start
Auto,CoolˈDry,Heat and Fan operation
Press ON/OFF button, unit starts.
ON/OFF
FAN
MODE
TIMER
CLOCK
SET SLEEP
LOCK RESET





SWING
HEALTH
Operation
mode changes as follows:
(2) Select operation mode
Press MODE button. For each press, operation
Unit will run in selected mode.
(4) FAN
Press FAN button. For each press, fan speed changes
as follows:
AUTO LO MED HI
Unit will run at selected fan speed.
Note:AUTO is not available in FAN mode.
Press ON/OFF button.
Note:
2.In DRY mode, when room temperature becomes lower than temp.setting+2oC,
unit will run intermittently at LOW speed regardless of FAN setting.
When FAN is set to AUTO, the air conditioner automatically adjusts the fan
speed according to room temperature.
1.
(3) Select temp. setting
Press TEMP button.
Every time the button is pressed, temp. setting increases 1oC
Every time the button is pressed, temp. setting decreases 1oC
Unit will start running to reach the temp. setting on LCD.
In FAN operation mode, the unit will not operate in COOL mode but only in FAN mode ,
AUTO is not available in FAN mode.And temp.setting is disabled.
In FAN mode,SLEEP operation is not available.
3.
8
In HE AT mode, warm air will blow out after a short period of the time due to cold-draft
prevention function.When FAN is set to AUTO, the air conditioner automatically adjusts
the fan speed according to room temperature.
4.
just press ON/OFF button and unit will run in previous status.
Remote controller can memorize each operation status. When starting it next time,
5.
Cooling only unit do not have displays and functions related with heating
6.
Operation mode AUTO FAN
COOL DRY
Remote controller
Display board
HEAT

Operation
1.Status display of air sending
Horizontal flap
( Auto swing )
2.Up and down air flow direction(Use remote controller)
Pos. 4
Remote controller
Blank
Move the vertical blade by a knob on airconditioner
to adjust left and right direction referring to Fig.
3.Left and right air flow adjustment(manual)
Air Flow Direction Adjustment
Cautions:
Hints
As cold air flows downward in COOL mode, adjusting air flow horizontally will be
much more helpful for a better air circulation.
( Downward swing )
Pos. 3
( Upward swing )
Pos. 2
( Cool/Dry standard position)
Pos. 1
Do not try to adjust the flap by hand.
When adjusting the flap by hand,turn off the unit ,and use the remote controller to
When humidity is high,condensate water might occur at air outlet if all vertical
louvers are adjusted to left or right.
It is advisable not to keep horizontal flap at downward position for a long time in
COOL or DRY mode ,otherwise, condensate water might occur.
.
For each press of SWING button, air flow direction onremote
controller display as follows according to different operation modes:
Pos.1 Pos.2 Pos.3 Pos.4
The horizontal flap will swing according to the above positions
As warm air flows upward in HEAT mode, adjusting air flow oblique downwards will
be much more helpful for a better air circulation.
ON/OFF
FAN
MODE
TIMER
CLOCK
SET SLEEP
LOCK RESET
SWING
9
restart the unit.
HEALTH

Operation
HEALTH Operation
2.Health anion function
Press the ON/OFF switch
1.Unit start
Press the " HEALTH"again, then the healthy
function stops..
The anion generator in the air conditioner can generate a lot of anion
effectively balance the quantity of position and anion in the air and
also to kill bacteria and speed up the dust sediment in the room and
finally clean the air in the room.
Brief introduction to health anion function
3.To Cancel HEALTH Model
is displayed on the


HEALTH ON/OFF
FAN
MODE
SWING
TIMER
CLOCK
SET SLEEP
LOCK RESET

Press HEALTH button
remote controller and is displayed on the
display board .
When indoor fan motor is running, it has healthy
process function. (It's available under any mode)
1
0
NOTE:
If the unit which you purchased has healthy function,follow it.If not,please ignore.

Operation
TIMER Operation
You can let unit start or stop automatically at following times: Before you wake up in the
morning, or get back from outside or after you fall asleep at night.
Set Clock correctly before starting Timer operation
TIMER ON/OFF
Power indicator on indoor unit lights up.
(1)After unit start, select your desired operation mode.
Operation mode will be displayed on LCD.
(3)Timer setting
Press HOUR / button.
Every time the button is pressed, time increases 10 min.
If button is kept depressed, time will change quickly.
Every time the button is pressed, time decreases 10 min.
If button is kept depressed, time will change quickly. Time
will be shown on LCD. It can be adjusted within 24 hours.
Timer mode indicator on indoor unit lights up.
(4)Confirming your setting
After setting correct time, press SET button to confirm, "ON" or "OFF" stops flashing.
Time displayed: Unit starts or stops at x hour x min. (TIMER ON or TIMER OFF).
To cancel TIMER mode
Just press TIMER button several times until TIMER mode disappears.
Hints
After replacing batteries or a power failure happens, Time setting should be reset.
Remote controller possesses memory function, when use TIMER mode next time, just
press SET button after mode selecting if timer setting is the same as previous one.
TIMER
Every time the button is pressed, display changes as follows:
Select your desired TIMER mode (TIMER ON or
TIMER ON TIMER OFF TIMER ON-OFF
blank
N12:00
PM
12:00
AM 12:00
PM 12:00
AM
TIMER ON-OFF
ON OFF
ON/OFF
FAN
MODE
TIMER
CLOCK
SET SLEEP
LOCK RESET



SWING

ON OFF ON OFF
(2)TIMER mode selection
PressTIMER button to change TIMER mode.
OFF), ON or OFF will flash.
HEALTH
11

TIMER ON-OFF
Operation
TIMER ON-OFF
To cancel TIMER mode
(1)After unit start, select your desired operation mode
Operation mode will be displayed on LCD.
(3)Time setting for TIMER ON
If button is kept depressed, time will change quickly.
Every time the button is pressed, time decreases 10 min.
If button is kept depressed, time will change quickly.
Every time the button is pressed, time increases 10 min.
It can be adjusted within 24 hours.
Time will be shown on LCD.
AM refers to morning and PM to afternoon
Press HOUR button.
(4) Time confirming for TIMER ON
After time setting, press TIMER button to confirm.
"ON" stops blinking, While "OFF" starts blinking.
Time displayed: Unit starts at x hour x min.
(5)Time setting for TIMER OFF
Follow the same procedures in "Time setting for TIMER ON".
(6) Time confirming for TIMER OFF
After time setting, press SET button to confirm, "OFF" stops flashing
Time displayed: Unit stops at X hour X min.
Just press TIMER button several times until TIMER mode disappears.
Every time the button is pressed, display changes as follows:
TIMER ON TIMER OFF TIMER ON-OFF
blank
N12:00
PM
12:00
AM 12:00
PM 12:00
AM
TIMER ON-OFF
ON OFF ON OFF ON OFF ON/OFF
FAN
MODE
TIMER
CLOCK
SET SLEEP
LOCK RESET




SWING

(2) Press TIMER button to change TIMER mode.
Select TIMER ON-OFF. "ON" will flash.
1
2
HEALTH

Comfortable SLEEP
Operation
Before going to bed,you can simply press the
SLEEP button and unit will operate in SLEEP
mode and bring you a sound sleep.
Use of SLEEP function
After the unit starts, set the operation status,
then press SLEEP button before which the
clock must be adjusted and time being set.
Operation
ON/OFF
FAN
MODE
TIMER
CLOCK
SET SLEEP
LOCK RESET
SWING
Operation Mode
1. In COOL,DRY mode
1 hours after SLEEP mode starts, temp. will
become 1OC higher than temp. setting. After
another 1 hours, temp. rises by 1OC further.
The unit will run for further 6 hours then stops
.
Temp. is higher than temp. setting so that room
temperature won't be too Iow for your sleep.
SLEEP operation starts
SLEEP operation stops
Approx.6hrs
1 hr Rises 1OC
Rises1OC
Temp.setting Unit stop
In COOL, DRY mode
1 hr
Power Failure Resume Function
If the unit is started for the first time, the
compressor will not start running unless 3
minutes have elapsed. When the power
resumes after power failure, the unit will run
automatically, and 3 minutes later the
compressor starts running.
3. In AUTO mode
The unit operates in corresponding sleep
mode adapted to the automatically selected
operation mode.
4. In FAN mode
It has no SLEEP function.
When TIMER function is set,the quiet sleeping
function can't be set up .After the sleeping
function is set up,if user resets TIMER function,
the sleeping function will be cancelled; the
machine will be in the state of timing-on,if the
two modes are set up at the same time ,either
of their operation time is ended first ,the unit
will stop automatically,and the other mode will
5.
Note to the power failure resume:
press the sleep button ten times in five
seconds and enter this function after hearing
four sounds.And press the sleep button ten
times within five seconds and leave this
function after hearing two sounds.
When quiet sleeping function is set to 8 hours,
the quiet sleeping time can not be adjusted.
2. In HEAT mode
1 hours after SLEEP mode starts, temp will
become 2
OC lower than temp.setting. After
another 1 hours, temp decrease by 2 C
O
further. After more another 3 hours, temp.
rises by 1 C further. The unit will run for
O
SLEEP
operation starts SLEEP
operation stops
1 hr
1 hr
3 hrs
3 hrs
Rises 1
O
C
Temp.setting Unit stop
In HEAT mode
Decreases 2
O
C
Decreases 2
O
C
further 3 hours then stops. Temp. is lower
than temp. setting so that room temperature
won't be too high for your sleep.
13
be cancelled.

Emergency Operation:
Pi Pi
Emergency operation and test operation
Operation
Use this operation only when the remote controller is defective or lost.
When the emergency operation switch is pressed, the " Pi "sound is
heard once, which means the start of this operation.
temperature is below 16o
C, do not use it in the
Test operation:
Use this switch in the test operation when the room
normal operation.
operation starts with the air flow speed "Hi".
Continue to press the test operation switch for more
than 5 seconds. After you hear the "Pi" sound twice,
release your finger from the switch: the cooling
Removal of the restriction of emergency or test operation:
Pi
When the remote controller is manipulated, it gets the system back to the
normal operation mode.
Press the emergency operation switch once more, or manipulate through the
remote controller; the "Pi" sound, the emergency or test operation is terminated.
In this operation, the system automatically selects the operation
modes, cooling or heating, according to the room temperature:
It is impossible to change the settings of temp.and fan
speed,It is also not possible to operate in timer or dry mode.
Test operation switch is the same as emergency switch.
Room
temperature Designated
temperature
Timer
mode Fan
speed
Operation
mode
Above 23oC
Below 23oC 23
oC
26oC
No
AUTO
AUTO
COOL
HEAT
Heating when the room temperature at the start of operation is below 23oC
If an air conditioner is a model for both cooling and heating.
Cooling when the room temperature at the start of operation is above 23oC.
No
14

For Smart Use of The Air Conditioner
Setting of proper room
temperature
Close doors and windows
during operation
If the unit is not to be used
for a long time, turn off the
power supply main switch.
Use the timer effectively
Use the louvers effectively
Do not block the air inlet
or outlet
Maintenance
Proper
temperature
During cooling operation
prevent the penetration of
direct sunlight with
curtain or blind
OFF
15

For Smart Use of The Air Conditioner
WARNING
Air Filter cleaning
Open the inlet grille by pulling it upward.
Remove the filter.
Clean the filter.
Attach the filter.
Close the inlet grille.
Push up the filter's center tab slightly until it is released
from the stopper, and remove the filter downward.
Use a vacuum cleaner to remove dust, or wash the filter with
water.After washing, dry the filter completely in the shade.
Attach the filter correctly so that the "FRONT" indication is
facing to the front.Make sure that the filter is completely
fixed behind the stopper.If the right and left filters are not
attached correctly, that may cause defects.
Remote Controller
Do not use the following for cleaning
Do not use water wipe the controller with a
dry cloth.Do not use glass cleaner or chemical
cloth.
Gasoline,benzine, thinner or cleanser may
damage the coating of the unit.
Hot water over 40OC(104OF) may cause
discoloring or deformation.
Wipe the air conditioner by using a soft and
dry cloth.For serious stains,use a neutral
detergent diluted with water.Wring the water
out of the cloth before wiping.then wipe off
the detergent completely.
Indoor Body
Before maintenance,be sure to turn off the system and the circuit breaker.
Maintenance
Once every
two weeks
16

17
Maintenance
1.Open the lnlet Grille
2.Detach the standard air filter
3.Attach Air Purifying Filter
4.Attach the standard air filter
(Necessary installation)
5.Close the Inlet Grille
Close the Grille surely
Slide the knob slightly upward to release the
filter, then withdraw it.
Put air purifying filter appliances into the
right and left filter frames.
Detach old Air Purifying Filter
Replacement of Air Purifying Filter
NOTE:
The photocatalyst air purifying filter will be solarized in fixed time. In normal family,
it will be solarized every 6 months.
Prop up the inlet grille by using a small device named
grille-support which located in the right side of the ind-
oor unit.
ATTENTION:
The white side of the photocatalyst air purifying filter face outside,
andtheblacksidefacetheunit.
The green side of the bacteria-killing medium air purifying filter face outside,
and the white side face the unit.
Please keep the bacteria-killing medium air purifying filter in the cool and dry conditions
avoid long time directly sunshine when you stop using it,or its ability of sterilization will
be reduced.
The bacteria-killing medium air purifying filter will be used for a long time,no need for
replacement. But in the period of using them ,you should remove the dust frequently
by using vacuum cleaner or flaping them lightly,otherwise ,its performance will be
affected.

Trouble shooting
Before asking for service, check the following first.
Normal
Performance
inspection
Noise is heard
Phenomenon Cause or check points
The system does not restart
immediately.
Smells are generated.
Mist or steam are blown out.
Multiple
check
Poor cooling
Application temp. range of air conditioner -7oC~43oC.
When unit is stopped, it won't restart
immediately until 3 minutes have elapsed
to protect the system.
When the electric plug is pulled out and
reinserted, the protection circuit will work
for 3 minutes to protect the air conditioner.
During unit operation or at stop, a swishing
or gurgling noise may be heard. At first 2-3
minutes after unit start, this noise is more
noticeable. (This noise is generated by
refrigerant flowing in the system.)
During unit operation, a cracking noise may
be heard. This noise is generated by the
casing expanding or shrinking because of
temperature changes
Should there be a big noise from air flow in
unit operation, air filter may be too dirty.
This is because the system circulates smells
from the interior air such as the smell of
furniture, paint, cigarettes.
During COOL or DRY operation, indoor unit
may blow out mist. This is due to the sudden
cooling of indoor air.
Is power plug inserted?
Is there a power failure?
Is fuse blownout?
Is the air filter dirty? Normally it should be
cleaned every 15 days.
Are there any obstacles before inlet and outlet?
Is temperature set correctly?
Are there some doors or windows left open?
Is there any direct sunlight through the
curtain)
window during the cooling operation?(Use
Are there too much heat sources or too many
people in the room during cooling operation?
In dry mode, fan
speed can’t be changed.
In DRY mode, when room temperature becom-
es lower than temp.setting+2oC,unit will run
intermittently at LOW speed regardless of FAN
setting.
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