Error No. 106 - LG Multi V5 Service Manual

Please refer to the Safety Precautions on pages 4-7 for more detail to prevent injury or death regarding the operation and service
WARNING
troubleshooting of the Multi V product.
Error No. Description
106
Outdoor unit fan
Master: 1061
PCB IPM error.
Slave 1: 1062
Slave 2: 1063
Is the fan motor
assembly correct?
Yes
Are the fan motor wiring
connections correct?
Yes
Is the power to the
inverter 1 and / or inverter
2 terminals on the main PCB
below 13.5 V DC?
Yes
Are the fan PCB assembly
connections normal?
Yes
Is the fan PCB assembly
correct?
Yes
Recheck power and installation.
Fan motor wire connections.
Details
1. Overload operation (piping is clogged, fan is blocked, EEV is defec-
Outdoor unit fan
2. Outdoor unit fan motor assembly is not correct (coil is disconnected or
IPM overcurrent
protection circuit was
3. Defective fan PCB assembly.
activated.
4. Power supply PCB is not functioning properly: power to the inverter 1
No
Check the outdoor unit fan motor assembly (is it locking up).
1. Check fan motor U,V,W connections.
No
2. Check if fan motor wiring has disconnected.
No
Check power supply to the inverter 1 and inverter 2 terminals on the main PCB
cable between inverter compressor PCB and fan PCB.
1. Check fan PCB connections.
No
2. Check assembly between fan PCB and heatsink.
No
Replace fan PCB assembly.
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tive, refrigerant was overcharged).
has shorted out, insulation has been damaged).
and inverter 2 terminals on the main PCB is below 13.5 V DC.
ERROR CODES

Error No. 106

Causes
187