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Service Manual 33
Operation
Display Function
1. Heating Model
2. Cooling Model
• Cooling, Soft Dry, Fan, Heating
• Cooling, Soft Dry, Fan
• Sleep Mode
• Sleep Mode
• Timer Mode
• Timer Mode
• Hot-start, Defrost
• PLASMA Mode
• PLASMA Mode
• Telephone Control Mode
• Telephone Control Mode
Operation Indicator
Timer Indicator
Sleep Timer Indicator
Defrost Indicator
PLASMA Indicator
Telephone control
Indicator
Indicator
Telephone control
Indicator
Indicator
Operation Indicator
Timer Indicator
Sleep Timer Indicator
Compressor on Indicator
Compressor on Indicator
PLASMA
PLASMA
OUTDOOR
Self-diagnosis Function
3sec
3sec
3sec
(once)
3sec
3sec
(twice)
3sec
(5times)
Error
Code
1
2
5
Error Display LED
(Indoor body operation LED)
Error contents
• Indoor room temperature
thermistor open/short
• Indoor pipe temperature
thermistor open/short.
• Outdoor pipe temperature
thermistor open/short.
• Poor communication.
• Indoor Thermistor
assembly check
• Outdoor Thermistor
assembly check
• Communication line/circuit
check
SVC check point
34 Room Air Conditioner
Operation
Remote Control Operations
START/STOP BUTTON
Operation starts when this button is pressed and stops
when the button is pressed again.
Operation starts when this button is pressed and stops
when the button is pressed again.
OPERATION MODE SELECTION BUTTON
Used to select the operation mode.
Used to select the operation mode.
ROOM TEMPERATURE SETTING BUTTONS
Used to select the room temperature.
Used to select the room temperature.
INDOOR FAN SPEED SELECTOR
Used to select fan speed in four steps
low, medium, high and CHAOS.
Used to select fan speed in four steps
low, medium, high and CHAOS.
JET COOL
Used to start or stop the speed
cooling. (Speed cooling operates
super high fan speed in cooling mode.)
Used to start or stop the speed
cooling. (Speed cooling operates
super high fan speed in cooling mode.)
CHAOS SWING BUTTON
Used to stop or start louver movement and set the
desired up/down airflow direction.
Used to stop or start louver movement and set the
desired up/down airflow direction.
ON/OFF TIMER BUTTONS
Used to set the time of starting and stopping operation.
Used to set the time of starting and stopping operation.
TIME SETTING BUTTONS
Used to adjust the time.
Used to adjust the time.
TIMER SET/CANCEL BUTTONS
Used to set the timer when the desired time is obtained
and to cancel the Timer operation.
Used to set the timer when the desired time is obtained
and to cancel the Timer operation.
SLEEP MODE AUTO BUTTON
Used to set Sleep Mode Auto operation.
Used to set Sleep Mode Auto operation.
AIR CIRCULATION BUTTON
Used to circulate the room air without cooling or heat-
ing.
Used to circulate the room air without cooling or heat-
ing.
ROOM TEMPERATURE CHECKING BUTTON
Used to check the room temperature.
Used to check the room temperature.
PLASMA(OPTION)
Used to start or stop the plasma-purification function.
Used to start or stop the plasma-purification function.
RESET BUTTON
Used prior to resetting time or after replacing batteries.
Used prior to resetting time or after replacing batteries.
HORIZONTAL AIRFLOW DIRECTION CONTROL
BUTTON (NOT ON ALL MODELS)
Used to set the desired horizontal airflow direction.
BUTTON (NOT ON ALL MODELS)
Used to set the desired horizontal airflow direction.
ON
OFF
PLASMA
SET
CANCEL
6
1
3
5
4
Cooling Operation
Auto Operation
Healthy Dehumidification Operation
Flip-up door
(opened)
(opened)
Heating Operation
Signal transmitter
10
11
12
13
14
15
7
8
9
2
• Cooling Model(
), Heat Pump Model(
)
Remote Control
The remote control transmits the signals to the system.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Operation Mode
Service Manual 35
Operation
ON
OFF
CANCEL
SET
1
3
5
4
9
10
12
14
16
7
2
8
13
15
11
6
Cooling Operation
Auto Operation
Healthy Dehumidification Operation
Flip-up door
(opened)
(opened)
Heating Operation
Signal transmitter
• Cooling Model(
), Heat Pump Model(
)
Operation Mode
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Remote Control
Signal transmitter
Transmits the signals
to the room air conditioner.
START/STOP BUTTON
Operation starts when this button is pressed and
stops when the button is pressed again.
Operation starts when this button is pressed and
stops when the button is pressed again.
OPERATION MODE SELECTION BUTTON
Used to select the operation mode.
Used to select the operation mode.
ROOM TEMPERATURE SETTING BUTTONS
Used to select the room temperature.
Used to select the room temperature.
INDOOR FAN SPEED SELECTOR
Used to select fan speed in four steps
low, medium, high and CHAOS.
Used to select fan speed in four steps
low, medium, high and CHAOS.
JET COOL
Used to start or stop the speed
cooling. (Speed cooling operates
super high fan speed in cooling mode.)
Used to start or stop the speed
cooling. (Speed cooling operates
super high fan speed in cooling mode.)
CHAOS SWING BUTTON
Used to stop or start louver movement and set the
desired up/down airflow direction.
Used to stop or start louver movement and set the
desired up/down airflow direction.
ON/OFF TIMER BUTTONS
Used to set the time of starting and stopping opera-
tion. (See page 13)
Used to set the time of starting and stopping opera-
tion. (See page 13)
TIME SETTING BUTTONS
Used to adjust the time.
Used to adjust the time.
TIMER SET/CANCEL BUTTON
Used to set the timer when the desired time is
obtained and to cancel the Timer operation.
Used to set the timer when the desired time is
obtained and to cancel the Timer operation.
SLEEP MODE AUTO BUTTON
Used to set Sleep Mode Auto operation.
Used to set Sleep Mode Auto operation.
AIR CIRCULATION BUTTON
Used to circulate the room air without cooling or
heating.
Used to circulate the room air without cooling or
heating.
ROOM TEMPERATURE CHECKING BUTTON
Used to check the room temperature.
Used to check the room temperature.
PLASMA(OPTIONAL)
Used to start or stop the plasma-purification func-
tion.
Used to start or stop the plasma-purification func-
tion.
HORIZONTAL AIRFLOW DIRECTION CONTROL
BUTTON
(NOT ON ALL MODELS)
Used to set the desired horizontal airflow direction.
BUTTON
(NOT ON ALL MODELS)
Used to set the desired horizontal airflow direction.
RESET BUTTON
Used prior to resetting time or after replacing batter-
ies.
Used prior to resetting time or after replacing batter-
ies.
2nd F Button
Used prior to using modes printed in blue at the
bottom of buttons.
Used prior to using modes printed in blue at the
bottom of buttons.
Remote Control Operations
36 Room Air Conditioner
Disassembly
Disassembly
Indoor Unit
Warning :
Disconnect the unit from power supply before making
any checks.
Be sure the power switch is set to “OFF”.
Disconnect the unit from power supply before making
any checks.
Be sure the power switch is set to “OFF”.
To remove the Grille from the Chassis.
• Set the up-and-down air discharge louver to open
• Set the up-and-down air discharge louver to open
position (horizontally) by finger pressure.
• Remove the securing screws.
• To remove the Grille, pull the lower left and right
• To remove the Grille, pull the lower left and right
side of the grille toward you (slightly tilted) and lift it
straight upward.
straight upward.
1. Before removing the control box, be sure to
take out the wire screwed at the other end.
Display
P.C.B
Conductor
P.C.B
Conductor
Step Motor
Conductor
Conductor
Earth
Conductor
Conductor
Motor
Conductor
Conductor
Sensor
Conductor
Conductor
Earth
Conductor
Conductor
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