LG LBNG3061YL Service Manual page 43

n The problem of missing the connector (OUTDOOR MAIN PCB ASSY)
Connectors
CN-POWER
CN-AC
CN-DC
CN-IPM
CN-Gate 1, 2
CN-GND
CN-FAN
CN-TH
CN-COMP
n The problem of missing the connector (SUB PCB ASSY)
Connectors
CN-UVW
CN-IPM
CN-Gate 1, 2
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Only for training and service purposes
Condition
• Malfunctions outdoor unit.
OPEN
• Stop compressor and outdoor fan.
• Malfunctions outdoor unit.
• Stop compressor and outdoor fan.
OPEN
• The operation LED blinks 10 times.
• Malfunctions outdoor unit.
OPEN
• Stop compressor and outdoor fan.
• The operation LED blinks 10 times.
• Malfunctions inverter circuit.
OPEN • Stop compressor and outdoor fan.
• The operation LED blinks 8 times.
• Malfunctions inverter circuit
OPEN
• The operation LED blinks 9 times.
• Malfunctions EMI /EMS
OPEN
OPEN • Malfunctions fan.
OPEN/SHORT • The operation LED blinks twice.
• The LED01K blinks 10 times.
• Continue Comp. operation.
OPEN/SHORT (when the discharge pipe TH opens)
• Stop Comp. operation
(when the discharge pipe TH shorts)
Condition
• Stop compressor.
OPEN
• Malfunctions inverter circuit.
OPEN • Stop compressor and outdoor fan.
• The operation LED blinks 8 times.
• Malfunctions inverter circuit
OPEN
• The operation LED blink 9 times.
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Problem (error mode)
Problem (error mode)
LGE Internal Use Only