The Problem Of Missing The Connector (Outdoor Main Pcb Assy); The Problem Of Missing The Connector (Sub Pcb Assy) - LG A2UN186FA0 Service Manual

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

The problem of missing the connector (SUB PCB ASSY)

Connectors
CN-UVW
CN-IPM
CN-Gate 1, 2
Condition
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN/SHORT
OPEN/SHORT
Condition
OPEN
OPEN
OPEN
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Problem (error mode)
• Malfunctions outdoor unit.
• Stop compressor and outdoor fan.
• Malfunctions outdoor unit.
• Stop compressor and outdoor fan.
• The operation LED blinks 10 times.
• Malfunctions outdoor unit.
• Stop compressor and outdoor fan.
• The operation LED blinks 10 times.
• Malfunctions inverter circuit.
• Stop compressor and outdoor fan.
• The operation LED blinks 8 times.
• Malfunctions inverter circuit
• The operation LED blinks 9 times.
• Malfunctions EMI /EMS
• Malfunctions fan.
• The operation LED 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)
Problem (error mode)
• Stop compressor.
• Malfunctions inverter circuit.
• Stop compressor and outdoor fan.
• The operation LED blinks 8 times.
• Malfunctions inverter circuit
• The operation LED blink 9 times.