LG Multi V5 Service Manual

187
Error Codes
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ERROR CODES
Please refer to the Safety Precautions on pages 4-7 for more detail to prevent injury or death regarding the operation and service
troubleshooting of the Multi V product.
WARNING
Error No. 106
Error No. Description Details Causes
106
Master: 1061
Slave 1: 1062
Slave 2: 1063
Outdoor unit fan
PCB IPM error.
Outdoor unit fan
IPM overcurrent
protection circuit was
activated.
1. Overload operation (piping is clogged, fan is blocked, EEV is defec-
tive, refrigerant was overcharged).
2. Outdoor unit fan motor assembly is not correct (coil is disconnected or
has shorted out, insulation has been damaged).
3. Defective fan PCB assembly.
4. Power supply PCB is not functioning properly: power to the inverter 1
and inverter 2 terminals on the main PCB is below 13.5 V DC.
Is the fan motor
assembly correct?
Check the outdoor unit fan motor assembly (is it locking up).
ĺ5HDVVHPEOHRUUHSODFHLIHUURUVDUHIRXQG
No
Yes
Are the fan motor wiring
connections correct?
No
Recheck power and installation.
1. Check fan motor U,V,W connections.
ĺ5HDVVHPEOHZLULQJLIHUURUVDUHIRXQG
2. Check if fan motor wiring has disconnected.
ĺ5HSODFHRXWGRRUXQLWIDQPRWRULIHUURUVDUHIRXQG
Yes
Are the fan PCB assembly
connections normal?
Yes
No
1. Check fan PCB connections.
ĺ5HDVVHPEOHZLULQJLIHUURUVDUHIRXQG
2. Check assembly between fan PCB and heatsink.
ĺ5HDVVHPEOHKHDWVLQNLIHUURUVDUHIRXQG
Yes
Is the fan PCB assembly
correct?
Replace fan PCB assembly.
No
Fan motor wire connections.
Images here are representative of system components. Actual component appearance depends on
model and system type.
Check power supply to the inverter 1 and inverter 2 terminals on the main PCB
cable between inverter compressor PCB and fan PCB.
ĺ5HFRQQHFWRUUHSODFHZLULQJHWFLIHUURUVDUHIRXQG
Is the power to the
inverter 1 and / or inverter
2 terminals on the main PCB
below 13.5 V DC?
No
Yes

LG Multi V5 Specifications

General

Compressor Type	Inverter Scroll
Refrigerant	R410A
Energy Efficiency	High
Heat Recovery	Available
Smart Diagnosis	Yes
Type	VRF (Variable Refrigerant Flow)
Control	Centralized Control
Power Supply	380-415V / 3Ph / 50Hz