LG Multi V Manual&Nbsp;

Troubleshooting Guide
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Only for training and service purposes
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11
Indoor unit transmission error
Error
No.
Error Type Error Point Main Reasons
Indoor unit doesn’t get sig-
nal from ODU for 3 minutes
continuously
1. Indoor 485 transmission PCB fault
2. After PCB replacing, auto addressing
was not done
■ Error diagnosis and countermeasure flow chart
Yes
No
After Auto addressing,
error code disappears?
Replace indoor unit 485
transmission PCB
No
After ODU main PCB
reset, error code
disappears?
END
Yes

LG Multi V Specifications

General

Type	VRF (Variable Refrigerant Flow)
Compressor Type	Scroll
Refrigerant	R410A
Energy Efficiency	High
Control System	Centralized and individual control options
Indoor Units	Multiple types available (e.g., ceiling cassette, wall-mounted, ducted)