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Model
LWG0710PCG LWG0720NCN LWG0720PCG LWG0760ACG_ACP LWG0760BCG LWG0760PCG LWG0760QCG LWG0761ACG_ACE_AAG_PCG_ACP_ACF LWG0761BCE_BCN_BAG LWG0761QAG LWG0820ACG_SAS_NCE LWG0821ACG_LWG0911AAG LWG0960ACG_ACS_ACN_AAG_ACP_ACF LWG0960BCW07LC
Pages
36
Size
1.77 MB
Type
PDF
Document
Service Manual
Brand
Device
Air Conditioner
File
lwg0710pcg-lwg0720ncn-lwg0720pcg-lwg0760acg-acp-lw.zip
Date

LG LWG0710PCG / LWG0720NCN / LWG0720PCG / LWG0760ACG_ACP / LWG0760BCG / LWG0760PCG / LWG0760QCG / LWG0761ACG_ACE_AAG_PCG_ACP_ACF / LWG0761BCE_BCN_BAG / LWG0761QAG / LWG0820ACG_SAS_NCE / LWG0821ACG_LWG0911AAG / LWG0960ACG_ACS_ACN_AAG_ACP_ACF / LWG0960BCW07LC Service Manual ▷ View online

—7—
TEMPERATURE SETTING
• This button can automatically control the temperature 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)
  Select the lower number for lower temperature of the room.
FAN SPEED
• Everytime you push this button it is set as follows. {High(F3) 
 
Low(F1) 
 
Med(F2) 
 
High(F3)...}.
FAN SPEED
• Everytime you push this button it is set as follows.
  {High(F3) 
 
Low(F1) 
 
Med(F2) 
 
High(F3)...}.
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 first turn it on, the air conditioner is on the High cool mode and the temp. at 72
°
F(22˚C).
MODE
• Everytime you push this button, it will toggle between Cool, Fan and Dry.
AUTO SWING
• The vertical louver swings horizontally by the automatic system and stops when you press
  the button again.
ON/OFF TIMER
REMOCON SIGNAL RECEIVER
MODE
• Everytime you push this button, it will toggle
  between Cool, Fan and Dry.
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 first turn it on, the air conditioner is on the
  High cool mode and the temp. at 72
°
F(22˚C)
TEMPERATURE SETTING
• This button can automatically control the temperature
  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)
  Select the lower number for lower temperature of the room.
AUTO SWING
The vertical louver swings horizontally by the automatic
system and stops when you press the button again.
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
°
F(1˚C) 30min. later and by 2
°
F after another 30 min.
• 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.
1
2
3
4
5
6
1
2
3
4
5
6
1
4
5
3
6
2
- 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
°
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)
2. COOLING ONLY MODEL WITH REMOTE CONTROL AND TOUCH TYPE
• DISPLAY
AUTO RESTART
In failure of electric power, the unit runs as previous setting operation when power returns.
—8—
• Check the Fuse.
• Check the wiring diagram.
Is the Trans input power 
the same as specified?
Is the Trans output power
about AC 14V?
Is shorted the Trans. output?
Is output Voltage of IC01D
DC 12V?
Is output Voltage of IC02D
DC 5V?
Is the voltage No.20 of Micom
DC 5V?
Exchange Main PCB Ass'y.
Is the 
connection between
Main and Display 
all right?
Is the reset circuit all right?
(The No.16 of
Micom is 5V.)
• Check the Fuse.
• Check the wiring diagram.
• Check the Main 
  PCB pattern.
• Exchange the Trans.
• Exchange D02D~D05D.
• Exchange IC01D.
• Exchange IC02D.
• Exchange IC01A, C02A.
• Connect connector
  exactly.
• Check the PCB 
  pattern.
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
NO
YES
3. ELECTRICAL PARTS TROUBLESHOOTING GUIDE: 
• MODEL : Micom models
Possible Trouble 1
The unit does not operate.
—9—
4. SCHEMATIC DIAGRAM
4.1 CIRCUIT DIAGRAM
• MODELS : LWG0760ACG, LWG0760ACP, LWG0960ACG, LWG0960AAG, LWG0820ACG,
LWG0821ACG, LWG0720ACG, LWG0761ACG, LWG0761ACE, LWG0761ACP,
LWG0761AAG, KC10WR, LWG0911AAG, LWG0960ACP, LWG0960ACF, LWG0761ACF,
LWG0911AAG, LWG0930AAG, LWC091GSAA0, LWC093GSAA0, LWC076GGAA0
•  MODELS : LWG0760BCG, LWG0960BCG, LWG0761BCE/BCN/BAG,
LWC076GGAB0/GSAA0, LWC096GGAB0, LWC076GEAB0, LWC096GEAB0
BR(YL)
BK
RD
P.T.C
—10—
•  MODELS : LWG0820SAS
•  MODELS : LWG0761PCN
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