LG LS-L1261NL - Outdoor and Sub PCB Connector Issues

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■ The problem of missing the connector (SUB PCB ASSY)
Connectors
CN-UVW
CN-AC
CN-DC
CN-IPM
Condition
OPEN
OPEN
OPEN
OPEN
• Stop compressor.
• Malfunctions outdoor unit.
• Stop compressor and outdoor fan.
• The operation LED blinks 5 times.
• Malfunctions PFC & inverter circuit.
• Stop compressor and outdoor fan.
• Malfunctions outdoor unit.
• Stop compressor and outdoor fan.
• The operation LED blinks 5 times.
Problem (error mode)
■ The problem of missing the connector (OUTDOOR MAIN PCB ASSY)
Connectors
CN-POWER
CN-AC
CN-DC
CN-IPM
CN-GND1,2
CN-4WAY
CN-FAN
CN-OLP
CN-TH
CN-COMP
Condition
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN/SHORT
OPEN/SHORT
OPEN/SHORT
• Malfunctions outdoor unit.
• Stop compressor and outdoor fan.
• The operation LED blinks 5 times.
• Malfunctions outdoor unit.
• Stop compressor and outdoor fan.
• The operation LED blinks 5 times.
• Malfunctions PFC & inverter circuit.
• Stop compressor and outdoor fan.
• Malfunctions EMI /EMS
• Malfunctions 4-WAY valve.
• Malfunctions fan.
• Malfunctions Comp. Motor.
• The operation LED blinks 4 times.
• The LED01K blinks 4 times.
• The operation LED blinks twice.
• The LED01K blinks twice.
• The LED01K blinks 10 times.
• Continue Comp. operation.
(when the discharge pipe TH opens)
• Stop Comp. operation
(when the discharge pipe TH shorts)
• Malfunctions outdoor unit.
• Stop compressor and outdoor fan.
• The operation LED blinks 5 times.
Problem (error mode)