LG AS-H076QGA2_QNA2 / AS-H096QGA2_QNA2 / AS-H126RGA2_RNA2 / LS-C096QLA2 / LS-H096QLA2 / LS-C126RLA2 / LS-H126RGA2_RMA2_RLA2 Service Manual ▷ View online
Service Manual 29
Operation
■
Test operation
•
During the TEST OPERATION, the unit operates in cooling mode at high speed fan, regardless of room tem-
perature and resets in 18±1 minutes.
perature and resets in 18±1 minutes.
•
During test operation, if remote controller signal is received, the unit operates as remote controller sets.
If you want to use this operation, open the front panel upward and Press the power button let it be pressed for
about 3 seconds.
If you want to use this operation, open the front panel upward and Press the power button let it be pressed for
about 3 seconds.
•
If you want to stop the operation, re-press the button.
■
Auto restart
•
In case the power comes on again after a power failure, Auto Restarting Operation is the function to operate
procedures automatically to the previous operating conditions.
procedures automatically to the previous operating conditions.
■
Protection of the evaporator pipe from frosting
• If the indoor pipe temp is below 0°C in 7 min. after the compressor operates without any pause while in cool-
ing cycle operation mode, the compressor and the outdoor fan are turned off in order to protect the indoor
evaporator pipe from frosting.
evaporator pipe from frosting.
• When the indoor pipe temp is 7°C or higher after 3 min. pause of the compressor, the compressor and the
outdoor fan is turned on according to the condition of the room temperature.
■
Buzzer Sounding Operation
• When the appliance-operation key is input by the remote control, the short "beep-beep-" sounds.
• When the appliance-pause key is input by the remote control, the long "beep—" sounds.
• When a key is input by the remote control while the slide switch on the main unit of the appliance is on the
• When the appliance-pause key is input by the remote control, the long "beep—" sounds.
• When a key is input by the remote control while the slide switch on the main unit of the appliance is on the
forced operation position, the error sound "beep-beep-beep-beep-beep-" is made 10 times to indicate that the
remote control signal cannot be received.
remote control signal cannot be received.
30 Room Air Conditioner
Self-diagnosis Function
Operation
Display Function
1. Heating Model
2. Cooling Model
• Cooling, Soft Dry, Fan, Heating
• Cooling, Soft Dry, Fan
• Timer Mode
• Timer Mode
• Hot-start, Deice
Operation Indicator
Timer Indicator
Indoor Unit on Indicator
Indoor Unit on Indicator
Deicer Indicator
Operation Indicator
Timer Indicator
Compressor on Indicator
OUT
DOOR
IN
DOOR
IN
DOOR
3sec
3sec
3sec
(once)
Error
Code
1
Error Display LED
(Indoor body operation LED)
Error contents
• Indoor room temperature
thermistor open/short
• Indoor pipe temperature
thermistor open/short.
• Indoor Thermistor
assembly check
SVC check point
Service Manual 31
Remote Control Operations
The remote control transmits the signals to the system.
Operation
32 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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