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Air conditioner
User & installation manual
AW**CGHLAWKNTC
rof uoy knahT• purchasing this Samsung air conditioner.
erofeB• operating this unit, please read this manual carefully and retain it for future reference.
AW07CGHLAWKNTC
AW09CGHLAWKNTC
AW12CGHLAWKNTC
Installation & Assembly Instructions
Front panel cleaning and drying
Appearance cleaning
Introduction to Refrigerants R32 3
7
10
9
9
11
12
14
15
15
16
16
16
16
16
17
9K
12K
18K
24K
Introduction to Refrigerants R32
The refrigerants used for air conditioners are environmentally friendly hydrocarbons R32. This kind of erant is
combustible and odorless. Moreover, it can burn and explode under certain condition. However, there will be
no risk of burning and explosion if you comply with the following table to install your air conditioner in a room
with an appropriate area and use it correctly.
Compared with ordinary refrigerants, Refrigerant R32 is environmentally friendly and does not destroy the
ozone sphere and its value of greenhouse effect is also very low.
1. Information on servicing:
1) Checks to the area
Prior to beginning work on systems containing flammable refrigerants, safety checks are necessary to ensure
that the risk of ignition is minimized. For repair to the refrigerating system, the following precautions shall be
complied with prior to conducting work on the system.
2) Work procedure
Work shall be undertaken under a controlled procedure so as to minimize the risk of a flammable gas or vapor
being present while the work is being performed.
3) General work area
All maintenance staff and others working in the local area shall be instructed on the nature of work being
carried out. Work in confined spaces shall be avoided. The area around the workspace shall be sectioned off.
Ensure that the conditions within the area have been made safe by control of flammable material
4) Checking for presence of refrigerant
The area shall be checked with an appropriate refrigerant detector prior to and during work, to ensure the
technician is aware of potentially flammable atmospheres. Ensure that the leak detection equipment being
used is suitable for use with flammable refrigerants, i.e. non-sparking, adequately sealed or intrinsically safe.
5) Presence of fire extinguisher
If any hot work is to be conducted on the refrigeration equipment or any associated parts, appropriate fire
extinguishing equipment shall be available to hand. Have a dry powder or CO 2 fire extinguisher adjacent to
the charging area.
6) No ignition sources
No person carrying out work in relation to a refrigeration system which involves exposing any pipe work shall
use any sources of ignition in such a manner that it may lead to the risk of fire or explosion. All possible ignition
sources, including cigarette smoking, should be kept sufficiently far away from the site of installation, repairing,
removing and disposal, during which refrigerant can possibly be released to the surrounding space. Prior to
work taking place, the area around the equipment is to be surveyed to make sure that there are no flammable
hazards or ignition risks. No Smoking signs shall be displayed.
7) Ventilated area
Ensure that the area is in the open or that it is adequately ventilated before breaking into the system or
conducting any hot work. A degree of ventilation shall continue during the period that the work is carried out.
The ventilation should safely disperse any released refrigerant and preferably expel it externally into the
atmosphere.
8) Checks to the refrigeration equipment
Where electrical components are being changed, they shall be fit for the purpose and to the correct specifica-
tion. At all times the manufacturer's maintenance and service guidelines shall be followed. If in doubt consult
the manufacturer's technical department for assistance.
Room area requests for air conditioner with Refrigerant R32
R32
Refrigerant Capacity(Btu) Room Area
2
Above 4m
2
Above 4m
2
Above 15m
2
Above 25m
3
The following checks shall be applied to installations using flammable refrigerants:
-- The charge size is in accordance with the room size within which the refrigerant containing parts are
installed;
-- The ventilation machinery and outlets are operating adequately and are not obstructed;
-- If an indirect refrigerating circuit is being used, the secondary circuit shall be checked for the presence of
refrigerant;
-- Marking to the equipment continues to be visible and legible. Markings and signs that are illegible shall be
corrected;
-- Refrigeration pipe or components are installed in a position where they are unlikely to be exposed to any
substance which may corrode refrigerant containing components, unless the components are constructed of
materials which are inherently resistant to being corroded or are suitably protected against being so corroded.
9) Checks to electrical devices
Repair and maintenance to electrical components shall include initial safety checks and component inspection
procedures. If a fault exists that could compromise safety, then no electrical supply shall be connected to the
circuit until it is satisfactorily dealt with. If the fault cannot be corrected immediately but it is necessary to
continue operation, an adequate temporary solution shall be used. This shall be reported to the owner of the
equipment so all parties are advised. Initial safety checks shall include:
-- That capacitors are discharged: this shall be done in a safe manner to avoid possibility of sparking;
-- That there no live electrical components and wiring are exposed while charging, recovering or purging the
system;
-- That there is continuity of earth bonding.
2. Repairs to sealed components
1) During repairs to sealed components, all electrical supplies shall be disconnected from the equipment being
worked upon prior to any removal of sealed covers, etc. If it is absolutely necessary to have an electrical supply
to equipment during servicing, then a permanently operating form of leak detection shall be located at the most
critical point to warn of a potentially hazardous situation.
2) Particular attention shall be paid to the following to ensure that by working on electrical components, the
casing is not altered in such a way that the level of protection is affected. This shall include damage to cables,
excessive number of connections, terminals not made to original specification, damage to seals, incorrect
fitting of glands, etc. Ensure that apparatus is mounted securely. Ensure that seals or sealing materials have
not degraded such that they no longer serve the purpose of preventing the ingress of flammable atmospheres.
Replacement parts shall be in accordance with the manufacturer's specifications.
NOTE: The use of silicon sealant may inhibit the effectiveness of some types of leak detection equipment.
Intrinsically safe components do not have to be isolated prior to working on them.
3. Repair to intrinsically safe components
Do not apply any permanent inductive or capacitance loads to the circuit without ensuring that this will not
exceed the permissible voltage and current permitted for the equipment in use. Intrinsically safe components
are the only types that can be worked on while live in the presence of a flammable atmosphere. The test
apparatus shall be at the correct rating. Replace components only with parts specified by the manufacturer.
Other parts may result in the ignition of refrigerant in the atmosphere from a leak.
4. Cabling
Check that cabling will not be subject to wear, corrosion, excessive pressure, vibration, sharp edges or any
other adverse environmental effects. The check shall also take into account the effects of aging or continual
vibration from sources such as compressors or fans.
5. Detection of flammable refrigerants
Under no circumstances shall potential sources of ignition be used in the searching for or detection of refrige
ant leaks. A halide torch (or any other detector using a naked flame) shall not be used.
6. Leak detection methods
The following leak detection methods are deemed acceptable for systems containing flammable refrigerants.
Electronic leak detectors shall be used to detect flammable refrigerants, but the sensitivity may not be
adequate, or may need re-calibration. (Detection equipment shall be calibrated in a refrigerant-free area.)
Ensure that the detector is not a potential source of ignition and is suitable for the refrigerant used. Leak
detection equipment shall be set at a percentage of the LFL of the refrigerant and shall be calibrated to the
refrigerant employed and the appropriate percentage of gas (25% maximum) is confirmed. Leak detection
fluids are suitable for use with most refrigerants but the use of detergents containing chlorine shall be avoided
4
as the chlorine may react with the refrigerant and corrode the copper pipe-work. If a leak is suspected, all
naked flames shall be removed/ extinguished. If a leakage of refrigerant is found which requires brazing, all of
the refrigerant shall be recovered from the system, or isolated (by means of shut off valves) in a part of the
system remote from the leak. Oxygen free nitrogen (OFN) shall then be purged through the system both before
and during the brazing process.
7. Removal and evacuation
When breaking into the refrigerant circuit to make repairs or for any other purpose conventional procedures
shall be used. However, it is important that best practice is followed since inflammability is a consideration. The
following procedure shall be adhered to:
-- Remove refrigerant;
-- Purge the circuit with inert gas;
-- Evacuate;
-- Purge again with inert gas;
-- Open the circuit by cutting or brazing.
The refrigerant charge shall be recovered into the correct recovery cylinders. The system shall be flushed with
OFN to render the unit safe. This process may need to be repeated several times. Compressed air or oxygen
shall not be used for this task. Flushing shall be achieved by breaking the vacuum in the system with OFN and
continuing to fill until the working pressure is achieved, then venting to atmosphere, and finally pulling down to
a vacuum. This process shall be repeated until no refrigerant is within the system. When the final OFN charge
is used, the system shall be vented down to atmospheric pressure to enable work to take place. This operation
is absolutely vital if brazing operations on the pipe-work are to take place. Ensure that the outlet for the vacuum
pump is not close to any ignition sources and there is ventilation available.
8. Decommissioning
Before carrying out this procedure, it is essential that the technician is completely familiar with the equipment
and all its detail. It is recommended good practice that all refrigerants are recovered safely. Prior to the task
being carried out, an oil and refrigerant sample shall be taken in case analysis is required prior to re-use of
reclaimed refrigerant. It is essential that electrical power is available before the task is commenced.
a) Become familiar with the equipment and its operation.
b) Isolate system electrically.
c) Before attempting the procedure, ensure that:
. mechanical handling equipment is available, if required, for handling refrigerant cylinders;
. all personal protective equipment is available and being used correctly;
. the recovery process is supervised at all times by a competent person;
. recovery equipment and cylinders conform to the appropriate standards.
d) Pump down refrigerant system, if possible.
e) If a vacuum is not possible, make a manifold so that refrigerant can be removed from various parts of the
system.
F) Make sure that cylinder is situated on the scales before recovery takes place.
g) Start the recovery machine and operate in accordance with manufacturer's instructions.
h) Do not overfill cylinders. (No more than 80 % volume liquid charge).
i) Do not exceed the maximum working pressure of the cylinder, even temporarily.
J) When the cylinders have been filled correctly and the process completed, make sure that the cylinders and
the equipment are removed from site promptly and all isolation valves on the equipment are closed off.
K) Recovered refrigerant shall not be charged into another refrigeration system unless it has been cleaned and
checked.
9. Labeling
Equipment shall be labeled stating that it has been de-commissioned and emptied of refrigerant. The label
shall be dated and signed. Ensure that there are labels on the equipment stating the equipment contains
flammable refrigerant.
10. Recovery
When removing refrigerant from a system, either for servicing or decommissioning, it is recommended good
practice that all refrigerants are removed safely. When transferring refrigerant into cylinders, ensure that only
appropriate refrigerant recovery cylinders are employed. Ensure that the correct number of cylinders for
holding the total system charge are available. All cylinders to be used are designated for the recovered refriger-
ant and labeled for that refrigerant (i.e. Special cylinders for the recovery of refrigerant). Cylinders shall be
5
complete with pressure-relief valve and associated shut-off valves in good working order. Empty recovery
cylinders are evacuated and, if possible, cooled before recovery occurs. The recovery equipment shall be in
good working order with a set of instructions concerning the equipment that is at hand and shall be suitable for
the recovery of all appropriate refrigerants including, when applicable, flammable refrigerants. In addition, a set
of calibrated weighing scales shall be available and in good working order. Hoses shall be complete with
leak-free disconnect couplings and in good condition. Before using the recovery machine, check that it is in
satisfactory working order, has been properly maintained and that any associated electrical components are
sealed to prevent ignition in the event of a refrigerant release. Consult manufacturer if in doubt. The recovered
refrigerant shall be returned to the refrigerant supplier in the correct recover cylinder, and the relevant waste
transfer note arranged. Do not mix refrigerants in recovery units and especially not in cylinders. If compressors
or compressor oils are to be removed, ensure that they have been evacuated to an acceptable level to make
certain that flammable refrigerant does not remain within the lubricant. The evacuation process shall be carried
out prior to returning the compressor to the suppliers. Only electric heating to the compressor body shall be
employed to accelerate this process. When oil is drained from a system, it shall be carried out safely.
Important Considerations
1. The air conditioner must be installed by professional personnel and the Installation manual is used only for
the professional installation personnel! The installation specifications should be subject to our after-sale
service regulations.
2. When filling the combustible refrigerant, any of your rude operations may cause serious injury or injuries to
human body and objects.
3. A leak test must be done after the installation completed.
4. It is a must to do the safety inspection before maintaining or repairing an air conditioner using combustible
refrigerant in order to ensure that the fire risk is reduced to minimum.
5. It is necessary to operate the machine under a controlled procedure in order to ensure that any risk arising
from the combustible gas or vapor during the operation is reduced to minimum.
6. Requirements for the total weight of filled refrigerant and the area of a room to be equipped with an air
conditioner (are shown as in the following Tables GG.1 and GG.2)
6
Please read the manual before installation, using, maintenance.
Do not use means to accelerate the defrosting process or to clean, other than those recommended by
the manufacturer.
Do not pierce or burn the appliance.
The appliance shall be stored in a room without continuous operating sources (for example: open
flames, an operating ignition gas appliance or an operating electric heater.)
Please contact the nearest after-sale service center when maintenance is necessary. At the time of
maintenance, the maintenance personnel must strictly comply with the Operation Manual provided by
the corresponding manufacturer and any non-professional is prohibited to maintain the air conditioner.
The handling, installation, storage, servicing and disposal must comply with the provisions of gasrelaed
national laws and regulations, and also national wiring regulation.
It is necessary to clear away the refrigerant in the system when maintaining or scrapping an air
conditioner.
Be aware that refrigerants may not contain an odor.
This appliance is not intended for use by persons (including children) with reduced physical, sensory or
mental capabilities, or supervision or instruction concerning use of the appliance by a person responble
for their safety.
Children should be supervised to ensure that they do not play with the appliance.
Unit operation limits: Outdoor side 61~110(16~43), 80%RH; indoor side 61~90(16~32),
80%RH.
7
Warnings
.
Failure to follow these instructions may lead to incorrect operation, causing harm and damage.
indications:
8
9
3
3
4
4
10
Please note that:
1. The installation site should be in a well-ventilated condition.
2. The sites for installing and maintaining an air conditioner using Refrigerant R32 should be free from open
fire or welding, smoking, drying oven or any other heat source higher than 548 which easily produces open fire.
3. When installing an air conditioner, it is necessary to take appropriate anti-static measures such as wear
antistatic clothing and/or gloves.
4. It is necessary to choose the site convenient for installation or maintenance wherein the air inlets and outlets
of the indoor and outdoor units should be not surrounded by obstacles or close to any heat source or combusti-
ble and/or explosive environment.
5. If the indoor unit suffers refrigerant leak during the installation, all the personnel should go out till the refriger-
ant leaks completely for 15 minutes. If the product is damaged, it is a must to carry such damaged product back
to the maintenance station and it is prohibited to weld the refrigerant pipe or conduct other operations on the
user's site.
6. It is necessary to choose the place where the inlet and outlet air of the indoor unit is even.
7. It is necessary to avoid the places where there are other electrical products, power switch plugs and sockets,
kitchen cabinet, bed, sofa and other valuables right under the lines on two sides of the indoor unit, and also
prevent mechanical damage from occurring.
1. Site Safety
Open Flames Prohibited Ven la ry
2. Operation Safety
Mind Sta e ty Don`t use mobile phone
3. Installation Safety
Refrigerant Leak Detector
Appropriate Installation Location
The left picture is the schematic diagram of a refrigerant leak detector.
Open Flames Prohibited
Installation & Assembly Instructions
Before installing the appliance, you must read the manual carefully to get the safety
information and notes.
When filling the combustible refrigerant, any of your rude operations may cause serious
injury or injuries to human body or bodies and object or objects.
A leak test must be done after the installation is completed.
It is a must to do the safety inspection before maintaining or repairing an air conditioner
using combustible refrigerant in order to ensure that the fire risk is reduced to minimum.
It is necessary to operate the machine under a controlled procedure in order to ensure that
any risk arising from the combustible gas or vapor during the operation is reduced to
minimum.
Requirements for the total weight of filled refrigerant and the area of a room to be equipped
with an air conditioner.
1
12
3. Use these buttons on the
control panel and remote to increase or decrease
the Set Temperature or Timer.
Temperature range: 61O
F~88O
F(16O
C~31O
C)
Press the mode button to cycle
through the various modes: Cool, Dry, Fan and
Auto.
Cool Mode: The cooling function allows the air
conditioner to cool the room and at the same time
reduces Air humidify. Press the MODE button to
activate the cooling function. To optimize the
function of the air conditioner, adjust the
temperature and the speed by pressing the button
indicated.
Dry Mode: This function reduces the humidity of
the air to make the room more comfortable. Press
MODE button to set the DRY mode. An automatic
function of alternating cooling cycles and air fan
is activated.
Fan Mode: The conditioner works in only
ventilation. Press MODE button to set the FAN
mode. With pressing FAN SPEED button the
speed changes in the following sequence: Hi, Med
and Lo in FAN mode. The remote control also
stories the speed that was set in the previous
mode of operation.
Auto Mode: In AUTO mode the unit automatically
chooses the fan speed and the mode of operation
In this mode the fan speed and the temperature
are set automatically according to the room
temperature (tested by the temperature sensor
which is incorporated in the indoor unit.).
1. Without timer setting,the
operation mode is Cooling,Dry, Fan and Auto,and
the set temperature will be displayed.
Time will be displayed under timer setting.
Digital Display:
2. Mode Button:
1
2 64 75 3
9 8
and Button:
Press the SLEEP button, all of the
display lights will turn off after a while, but the
Sleep light is always on. In SLEEP mode, the air-
conditioner will automatically adjust the temperature
to make the room more comfortable durning the
night.
4. Sleep Button:
Control Panel
6. Turn the air conditioner on and
off.
Power Button:
7. When the Filter Check light is off,
it is useless to press the Filter Check button. When
the Filter Check light is on, it can turn off the light
by pressing the Filter Check button. After the
fan motor works for 500 total hours, the Filter
Check light will turn on to remind the user to clean
the filter.
Filter Button:
Use these buttons on the control
panel and remote to set the Timer.
Timer Off: The timed stop is programmed by
pressing TIMER button. Set the rest time by
pressing the button or until the rest
time displayed is to your demand then press
TIMER button again.
Timer On: When the unit is off, press TIMER
button at the first time, set the temperature with
pressing the button or . Press TIMER
button at the second time, set the rest time with
pressing the button or . Press TIMER
button at the third time, confirm the setting, then
the rest time to next automatical switching-on
could be read on the display of the machine.
Note: It can be set to automatically turn off or on in
0.5-24 hours. Each press of the
buttons will increase or decrease the timer. The
Timer can be set in 0.5 hours increment below 10
hours and 1 hour increment for 10 hours or above.
The SET light will turn on while setting.
To cancel the setted function, press the TIMER
button again.
8. Timer Button:
Press the FAN SPEED button
to choose the fan speed options. You can choose
Hi, Med, Lo or auto speed in COOL mode and
choose Hi, Med, Lo in FAN mode.
9. Fan Speed Button:
When the unit is in ECO mode, the light
will turn on. In ECO mode, the unit will turn off
once the room is cooled to the user set
temperature. The unit will turn back on when the
room temperature rises above the user set
temperature. Before the compressor starts, the
fan motor will run for a while, then it will stop for
a while, and will repeat to provide a much
more comfortable feeling and save energy.
5. Eco:
10. The louvers will allow you to
direct the air flow Left or Right throughout the room
as needed.
Move the Center handle from side to side until the
desired Left/Right direction is obtained.
Directional Louvers:
Handle
horizontal tabair deflector
Control Panel
13
Remote controller
Fan Only:
Press the FAN SPEED button to
choose the fan speed options. You can choose
Hi, Med, Lo or auto speed in COOL mode and
choose Hi, Med, Lo in FAN mode.
7. Fan Speed:
To press the DISPLAY button, it can
switch off/on all lights or LED display.
8. Display:
Use these buttons on the control panel
and remote to set the Timer.
Timer Off: The timed stop is programmed by
pressing TIMER button. Set the rest time by
pressing the button or until the rest
time displayed is to your demand then press
TIMER button again.
Timer On: When the unit is off, press TIMER
button at the first time, set the temperature with
pressing the button or . Press TIMER
button at the second time, set the rest time with
pressing the button or . Press TIMER
button at the third time, confirm the setting, then
the rest time to next automatical switching-on
could be read on the display of the machine.
Note:
It can be set to automatically turn off or on
in 0.5-24 hours. Each press of the
buttons will increase or decrease the timer. The
Timer can be set in 0.5 hours increment below
10 hours and 1 hour increment for 10 hours or
above. The SET light will turn on while setting.
To cancel the set function, press the TIMER
button again.
5. Timer:
In AUTO mode the unit automatically
chooses the mode of operation. In this mode the
temperature will be set automatically according to
the room temperature (tested by the temperature
sensor which is incorporated in the indoor unit.).
6. Auto Mode:
1.
Turn the air conditioner on and off.
Power:
2.
Press the COOL button to COOL mode.
Cool:
and :3.
Use these buttons on the control
panel and remote to increase or decrease the
Set Temperature or Timer. Temperature range:
61O
F~88O
F(16O
C~31O
C)
1
4
5
6
3
3
7
8
10
9
2
When the unit is in ECO mode, the light
will turn on. In ECO mode, the unit will turn off
once the room is cooled to the user set temperature.
The unit will turn back on when the room
temperature rises above the user set temperature.
Before the compressor starts, the fan motor will
run for a while, then it will stop for a while, and will
repeat to provide a much more comfortable feeling
and save energy.
Press the Fan Only button to FAN
ONLY mode.
9.
10.
Eco:
Press the SLEEP button, all of the
display lights will turn off after a while, but the
Sleep light is always on. In SLEEP mode, the
air conditioner will automatically adjust the
temperature to make the room more
comfortable during the night.
4. Sleep:
14
5K/6K
7K/9K 472 x 338 x 396
406 × 306 × 390
12K 502 x 372 x 546
15
16
Remove the filter by pulling down on the indents of the
filter door on the front of the unit.
Please soak the soft cloth in warm water. Be sure
to wring it out and wipe it.
If the dust on the front panel cannot be removed
well, please wash it with water after separation.
Appearance cleaning
Note: Please do not wipe with alkaline detergent.
Please do not use sulfuric acid, hydrochloric acid or
organic solvents (tin, kerosene, acetone, etc.) to wipe
the surface or stick stickers, etc.The surface may be
damaged.
Please remove the front panel (Grille).
Method: Put both hands on both sides of the panel
at the same time, press the remote control panel
with both thumbs to open the air inlet grille, and
then extract the air inlet grille upwards to complete
the disassembly of the air inlet grille.
Please clean the dust or foreign matter on the panel
with water or soft cloth. If the dust on the panel can't
be removed well, please wash it with water after
separation. If the foreign matter in the groove and
hole can't be removed well, please gently wipe them
with a soft brush. If water is used for cleaning,
please thoroughly dry the front panel, and then
combine it with the product.
Front panel cleaning and drying
Before calling for service, review this list. It may save you time and expense. This list includes common
occurrences that are not the result of defective workman-ship or materials in this appliance.
Solution
Air conditioner
does not start
Wall plug disconnected. Push plug firmly into wall outlet.
House fuse blown or circuit breaker tripped. Replace fuse with time delay type or
reset circuit breaker.
Plug Current Device Tripped. Press the RESET button.
Problem
Air from unit does
not feel cold
enough
Reset to a Lower temperature.
Thermostat set too cold for night-time cooling. To defrost the coil, set to FAN ONLY
mode. Then, set temperature to a Higher setting.
Temperature sensing element touching cold coil, located behind air filter. Straighten
tube away from coil.
Air filter may be dirty. Clean filter. Refer to Care and Cleaning section. To defrost,
set to FAN ONLY mode.
Dirty air filter- air restricted. Clean air filter. Refer to Care and Cleaning section.
Unit recently turned on in hot room. Allow additional time to remove Stored heat from
walls, ceiling, floor and furniture.
Control is OFF. Turn Control ON and set to desired setting.
Air conditioner
cooling, but room
is too warm- ice
forming on cooling
coil behind
decorative front.
Air conditioner
cooling, but room
is too warm- NO
ice forming on
cooling coil behind
decorative front.
Temperature is set too High, set temperature to a Lower setting.
Air directional louvers positioned improperly. Position louvers for better air distribution.
Front of units is blocked by drapes, blinds, furniture, etc. - restricts air distribution.
Clear blockage in front of unit.
Doors, windows, registers, etc. Open- cold air escapes. Close doors, windows, registers.
Compressor shut-off by changing modes. Wait approximately 3 minutes and listen for
compressor to restart when set in the COOL mode.
Air conditioner turns on
and off rapidly
Noise when unit is
cooling
Water dripping
INSIDE when
unit is cooling.
Improper installation. Tilt air conditioner slightly to the outside to allow water drainage.
Refer to installation instructions - check with installer.
Dirty air filter- air restricted. Clean air filter.
Air movement sound. This is normal . If too loud, set to a slower FAN setting.
Outside temperature extremely hot. Set FAN speed to a Higher setting to bring air past
cooling coils more frequently.
Window vibration - poor installation. Refer to installation instructions or check with installer.
17
Error codes
Water dripping
OUTSIDE when
unit is cooling.
Unit removing large quantity of moisture from humid room. This is normal during
excessively humid days.
Remote Sensing
Deactivating
Prematurely
(some models)
Remote control not located within range. Place remote control within 20 feet & 180 ,
radius of the front of the unit.
Remote control signal obstructed. Remove obstruction.
Room too cold
Type of failure Display of LED
Set temperature too low. Increase set temperature.
The failure of room temperature sensor
E1/E2
1),
when it is abnormal the sensor should be replaced.
2To check whether there is short circuit or open circuit in the wire of the sensor, and whether the plug is connected
well, whether there is welding off or rosin joint on the PCB, if there is any, it should be repaired.
3When the 1 and 2 are both normal, then the components or integrated circuit is damaged, the PCB should be
replaced.
The failure of indoor coil pipe temperature sensor
E1
E2
Solution
Problem
18
/