- 35 -
Copyright ©2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Troubleshooting
Error codes and LED display table for using Remote controller (table 2)
• Connector failure related to
thermistor
• Connector failure related to
thermistor
• Several transmission lines wired
as multicables
• Transmission lines in too close
vicinity to power line
• Connecting failure of transmission
line
• Longer wiring length of
transmission line than prescribed
( more than 50m)
• Error developed in transmission
between the microprocessor and
the EEPROM.
• ERROR due to the EEPROM
damage.
Checking No.
Details
Possible Causes
Necessary actions
• Check the connection of circuit connector
and lead line connecting connector
• Check the connection of circuit connector
and lead line connecting connector
• With electric wires, place each transmission
line at intervals.
• Wire the transmission line and power line at
more than 50mm intervals.
• Check the connection of transmission line.
• Check the wiring length of transmission line.
• Reassembly the indoor unit Option PCB.
• Replace the indoor unit PCB (Option PCB)
Errors related to
indoor thermistor
Errors related to
outdoor thermistor
Remote controller
communication errors
Indoor unit EEPROM
error
CH1
CH2
CH3
CH9
• Connector failure related to motor • Check the connection of circuit connector
and lead line connecting connector
Error related to supply
and exhaust fan
CH10
Breakdown mode2: failure code is displayed on remote controller.
LED light is on or flickering on the circuit panel of ventilation system.
The failure details are indicated by checking number indicated on air conditioner interlocking controller or on wired
remote controller(LCD-TYPE) and the number of on-and-off(flickering) in LED(red color) on the circuit plate.
Error code
Details display(operation LED/ main body display)
Loading status
CH1
CH01
Turn operation off
CH2
CH02
Turn operation off
CH3
CH03
Turn operation off
CH9
CH9
Turn operation off
CH10
CH10
Turn operation off
0.5 sec
3 sec
wired remote controller
LCD display(screen)
9times
Indoor thermistor
Open/Short
(LED 1)
Outdoor thermistor
Open/Short
(LED 1)
Remote controller
communication
error (LED 1)
Indoor unit
EEPROM error
(LED 1)
Supply and exhaust
motor fan do not
operation(LED 2)
Содержание LZ-H015GBA2
Страница 45: ...P No MFL63279702 FEBRUARY 2010 ...