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Lg Electronics General Wall Mounted-Inverter Type Manuale Utente

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46 Room Air Conditioner
Part 4   Trouble Shooting 
7. Self-diagnosis Function
■ Error Indicator
• The function is to self-diagnoisis airconditioner and express the troubles identifically if there is any trouble.
• Error mark is ON/OFF for the operation LED of evaporator body in the same manner as the following table.
• If more than two troubles occur simultaneously, primarily the highest trouble fo error code is expressed.
• After error occurrence, if error is released, error LED is also released simultaneously.
• To operate again on the occurrence of error code, be sure to turn off the power and then turn on.
• Having or not of error code is different from Model.
■ 9, 12kBtu/h Model
1 time
1time
3 sec
2 times
2 times
3 sec
4 times
4 times
3 sec
5times
5times
3 sec
6times
6times
3 sec
7times
7times
3 sec
3 sec
3 sec
2 times
3 sec
2 times
3 sec
1time
3 sec
1time
3 sec
1time
3 sec
1
2
4
5
6
7
Error Indicator
Error
Code
Cause of Error
Display
Indoor Outdoor
Indoor
Operation
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
• Indoor Temp. sensor error
  - Sensor open or short  
• Heat Sink sensor error 
 - Sensor open or short
 - Heat Sink temp is over 95
°…
• Communication error  
• Outdoor Temp. sensor error
  - Sensor open or short
• DC Peak error  
• Over current error (CT2)
ON
ON
ON
OFF
SHUT
DOWN
SHUT
DOWN
9times
9times
3 sec
10 times 10 times
3 sec
10
ON
• Outdoor fan lock error
 • D-Pipe TH. is short or open.
  (BLDC fan model only)
OFF
8times
8times
3 sec
8
• Indoor fan lock error
  (BLDC fan model only)
OFF
9
(4 LED Model)