LG LWG0760AHG_AHN_AHE Service Manual ▷ View online
—4—
1.4 FEATURES
• Designed for cooling or heating.
• Powerful and quiet cooling.
• Slide-in and slide-out chassis for the simple
• Powerful and quiet cooling.
• Slide-in and slide-out chassis for the simple
installation and service.
• Reversible inlet grille.
1.5 CONTROL LOCATIONS
1.5.1 HEAT PUMP MODEL WITH ROTARY TYPE
• VENTILATION
The ventilation lever must be in the CLOSE position
in order to maintain the best cooling conditions.
When a fresh air is necessary in the room, set the
ventilation lever to the OPEN position.
The damper is opened and room air is exhausted.
in order to maintain the best cooling conditions.
When a fresh air is necessary in the room, set the
ventilation lever to the OPEN position.
The damper is opened and room air is exhausted.
NOTE: Before using the ventilation feature,
make the lever, as shown. First, pull down
part
part
£
to horizontal line with part
£
.
• HEATER LAMP
When the unit sets heating operation condition, the
green lamp is lighted.
When the frost settles on the heat exchanger of the
outside, defrosting is made automatically and the
green lamp is unlighted. The until it may hiss and the
fan motor will stop for 1 to 10 minutes.
This should not be regarded as trouble. After
defrosting, the heating operation begins again.
green lamp is lighted.
When the frost settles on the heat exchanger of the
outside, defrosting is made automatically and the
green lamp is unlighted. The until it may hiss and the
fan motor will stop for 1 to 10 minutes.
This should not be regarded as trouble. After
defrosting, the heating operation begins again.
• THERMOSTAT
Turn the thermostat control to the desired setting.
The central position is a normal setting for average
conditions. You can change this setting, if
necessary, in accordance with your temperature
preference.
The thermostat automatically controls cooling or
heating, but the fan runs continuously whenever the
air conditioner is in operation. If the room is
too warm, turn the thermostat control clockwise. If
the room is too cool, turn the themostat control
counterclockwise.
The central position is a normal setting for average
conditions. You can change this setting, if
necessary, in accordance with your temperature
preference.
The thermostat automatically controls cooling or
heating, but the fan runs continuously whenever the
air conditioner is in operation. If the room is
too warm, turn the thermostat control clockwise. If
the room is too cool, turn the themostat control
counterclockwise.
• OPERATION
OFF
( O ) : Turns the air conditioner off.
LOW FAN
( ) : Permits the low fan speed
operation without cooling (heating).
LOW COOL ( ) : Permits cooling with the low
fan speed operation.
HIGH COOL ( ) : Permits cooling with the high
fan speed operation.
LOW HEAT ( ) : Permits heating with the low
fan speed operation.
HIGH HEAT ( ) : Permits heating with the high
fan speed operation.
• Side air-intake, side cooled-air discharge.
• Built in adjustable THERMOSTAT.
• Washable one-touch filter.
• Compact size.
• Built in adjustable THERMOSTAT.
• Washable one-touch filter.
• Compact size.
Part A
Part B
VENT
CLOSE
OPEN
Heater
WARMER
COOLER
Wait Three Minutes
Before Restarting
—5—
TEMPERATURE SETTING
• This button can automatically control the temperature of the room.
The temperature can be set within a range of 60
The temperature can be set within a range of 60
°
F to 86
°
F by 1
°
F.(16˚C to 30˚C by 1˚C).
FAN SPEED
• Everytime you push this button it is set as follows. {High(F2) Low(F1) High(F2)...}.
FAN SPEED
• Everytime you push this button it is set as follows.
{High(F2)
{High(F2)
Low(F1)
High(F2)...}.
POWER
• To turn the air conditioner ON, push the button. To turn the air conditioner OFF, push the button again.
• This button takes priority over any other buttons.
• When you fist turn on, High Cool mode and 19˚C are set automatically(If Indoor Temp. not less than 21˚C),
however High Heat mode and 23˚C set (If Indoor Temp. less than 21˚C).
• This button takes priority over any other buttons.
• When you fist turn on, High Cool mode and 19˚C are set automatically(If Indoor Temp. not less than 21˚C),
however High Heat mode and 23˚C set (If Indoor Temp. less than 21˚C).
MODE
• Everytime you push this button, it will toggle between Cool, Fan and Heat.
ON/OFF TIMER
- STOPPING OPERATION
• Everytime you push this button, when the air conditioner is operating, timer is set as follows.
(1Hour 2Hours 3Hours 4Hours 5Hours 6Hours 7Hours 8Hours 9Hours
10Hours 11Hours 12Hours Cancel)
• The Setting Temperature will be raised by 2
• Everytime you push this button, when the air conditioner is operating, timer is set as follows.
(1Hour 2Hours 3Hours 4Hours 5Hours 6Hours 7Hours 8Hours 9Hours
10Hours 11Hours 12Hours Cancel)
• The Setting Temperature will be raised by 2
°
F(1
°
C) 30min. later and by 2
°
F(1
°
C) after another 30 min.
- STARTING OPERATION
• Everytime you push this button, when the air conditioner is not operating, timer is set as follow.
(1Hour 2Hours 3Hours 4Hours 5Hours 6Hours 7Hours 8Hours 9Hours
10Hours 11Hours 12Hours Cancel)
• Everytime you push this button, when the air conditioner is not operating, timer is set as follow.
(1Hour 2Hours 3Hours 4Hours 5Hours 6Hours 7Hours 8Hours 9Hours
10Hours 11Hours 12Hours Cancel)
REMOTE CONTROL SIGNAL RECEIVER
MODE
• Select Cooling or Fan mode Heating with this button.
POWER
• To turn the air conditioner ON, push the button.
To turn the air conditioner OFF, push the button again.
• This button takes priority over any other buttons.
• When you fist turn on, High Cool mode and 19˚C are set
automatically(If Indoor Temp. not less than 21˚C),
however High Heat mode and 23˚C set (If Indoor Temp.
less than 21˚C).
To turn the air conditioner OFF, push the button again.
• This button takes priority over any other buttons.
• When you fist turn on, High Cool mode and 19˚C are set
automatically(If Indoor Temp. not less than 21˚C),
however High Heat mode and 23˚C set (If Indoor Temp.
less than 21˚C).
TEMPERATURE SETTING
• This button can automatically control the temperature
of the room. The temperature can be set within a range
of 60
of the room. The temperature can be set within a range
of 60
°
F to 86
°
F by 1
°
F.(16˚C to 30˚C by 1˚C).
AUTO RESTART SWITCH
In failure of electric power, if the switch is set to "ON",
the unit runs as previous setting operation when
power returns.
the unit runs as previous setting operation when
power returns.
ON/OFF TIMER
• Everytime you push this button, timer is set as follows.
(1Hour 2Hours 3Hours 4Hours 5Hours 6Hours
7Hours 8Hours 9Hours 10Hours 11Hours 12Hours Cancel)
• The Setting Temperature will be raised by 2
(1Hour 2Hours 3Hours 4Hours 5Hours 6Hours
7Hours 8Hours 9Hours 10Hours 11Hours 12Hours Cancel)
• The Setting Temperature will be raised by 2
°
F(1˚C) 30min.
later and by 2
°
F after another 30 min.
1.5.2 HEAT PUMP MODEL WITH REMOTE CONTROL AND TOUCH TYPE
• DISPLAY
• REMOTE CONTROLLER
Precaution: The Remote Controller will not function properly if strong light strikes the sensor window of the air
conditioner or if there are obstacles between the Remote Controller and the air conditioner.
—6—
2.1 MECHANICAL PARTS
2.1.1 FRONT GRILLE
1. Open the lnlet grille upward or downward.
2. Remove the screw which fastens the front grille.
3. Pull the front grille from the right side.
4. Remove the front grille.
5. Re-install the component by referring to the
2. Remove the screw which fastens the front grille.
3. Pull the front grille from the right side.
4. Remove the front grille.
5. Re-install the component by referring to the
removal procedure, above.(See Figure 1)
2.1.2 CABINET
1. After disassembling the FRONT GRILLE, remove
the 2 screws which fasten the cabinet at both
sides.
sides.
2. Remove the 2 screws which fasten the cabinet at
back.
3. Pull the base pan forward. (See Figure 2)
4. Remove the cabinet.
5. Re-install the component by referring to the
4. Remove the cabinet.
5. Re-install the component by referring to the
removal procedure, above.
2.1.3 CONTROL BOX
1. Disconnect the unit from the power source.
2. Remove the front grille. (Refer to section 2.1.1)
3. Remove the cabinet. (Refer to section 2.1.2)
4. Remove the screw which fastens the control box
2. Remove the front grille. (Refer to section 2.1.1)
3. Remove the cabinet. (Refer to section 2.1.2)
4. Remove the screw which fastens the control box
cover.
5. Remove the housing which connects motor wire
in the control box.
6. Remove the 3 leads from the compressor.
(Refer to section 2.3.1)
7.Discharge the capacitor by placing a 20,000
ohmresistor across the capacitor terminals.
8. Remove the 2 screws which fasten the control
box.(See Figure 3)
9. Pull the control box forward completely.
10. Re-install the components by referring to the
removal procedure, above. (See Figure 3)
(Refer to the circuit diagram found on page 24 in
this manual or on the control box.)
(Refer to the circuit diagram found on page 24 in
this manual or on the control box.)
2. DISASSEMBLY INSTRUCTIONS
— Before the following disassembly, POWER SWITCH set to OFF and disconnect the power cord.
Figure 1
Figure 3
Figure 2
—7—
2.2 AIR HANDLING PARTS
2.2.1 AIR GUIDE AND BLOWER
1. Remove the front grille. (Refer to section 2.1.1)
2. Remove the cabinet. (Refer to section 2.1.2)
3. Remove the control box. (Refer to section 2.1.3)
4. Remove the 3 screws which fasten the brace.
5. Remove the brace.
6. Remove the 2 screws which fasten the evaporator.
7. Move the evaporator forward and pulling it upward
slightly. (See Figure 4)
8. Move the evaporator to the left carefully.
9. Pull out the hook of orifice by pushing the tabs and
remove it. (See Figure 5)
10. Remove the clamp with a hand plier which
secures the blower.
11. Remove the blower.
12. Remove the 4 screws which fasten the air guide
12. Remove the 4 screws which fasten the air guide
from the barrier.
13. Move the air guide backward, pulling out from the
base pan.
14. Re-install the components by referring to the
removal procedure, above.
2.2.2 FAN AND SHROUD
1. Remove the cabinet. (Refer to section 2.1.2)
2. Remove the brace (Refer to section 2.2.1)
3. Remove the 3 screws which fasten the condenser.
4. Move the condenser to the left carefully.
5. Remove the clamp which secures the fan.
6. Remove the fan and then pull out the shroud.
(See Figure 6)
7. Re-install by referring to the removal procedure.
Figure 4
Figure 5
Figure 6