LG ARUV Series Service Manual page 281

Error No. Error Type
140
Excessive rise in outdoor
high pressure
(Sub2)
Error No. Error Type
Outdoor 3 phase power
141
supply problem (Reverse
(Sub2)
phase / phase omission)
Error No. Error Type
142
Transmission error
between outdoor units
(Sub2)
Error No. Error Type
143 (Sub1)
Excessive rise in high
pressure
145 (Sub2)
Error No. Error Type
144 (Sub1)
Excessive drop in low
pressure
146 (Sub2)
Error No. Error Type
147 (Sub1) Low voltage/ High
149 (Sub2) voltage
Error No. Error Type
148 (Sub1)
Outdoor voltage sensing
error
150 (Sub2)
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Only for training and service purposes
Error Point
Compressor Off due to the high
pressure switch in outdoor unit
Error Point
Wrong wiring at outdoor unit
(phase reversal / phase omission )
Error Point
Transmission error between outdoor units
104 (Main outdoor unit is not receiving sub
outdoor unit s signals)
147, 149, 171 (Sub outdoor units are not
receiving main unit signals)
Error Point
Compressor Off due to high pressure
sensor
Error Point
Compressor Off due to low pressure sensor
Error Point
1. Input Voltage in the installation region
= 3phase 380V±10%
2. Single Phase = 220 ±10%
Error Point
Measured value is abnormal (Open/Short)
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Troubleshooting Guide
Main Reasons
Refer to CH24
Main Reasons
Refer to CH54
Main Reasons
Refer to CH104
Main Reasons
Refer to CH34
Main Reasons
Refer to CH35
Main Reasons
Refer to CH25
Main Reasons
Refer to CH49
LGE Internal Use Only