LG ARUV Series Service Manual page 284

Troubleshooting Guide
Error No.
Excessive rise of the constant
152,153
compressor discharge tem-
(Sub3)
perature
Error No.
Outdoor 3 phase power sup-
155(Sub3) ply wiring wrong (Reverse
phase / Phase omission)
Error No.
Transmission error between
156(Sub3)
outdoor units
Error No.
157(Sub3) High pressure sensor error
Error No.
158(Sub3) Low pressure sensor error
Error No.
Outdoor unit air temperature
159(Sub3)
sensor error
Error No.
Compressor suction tempera-
161(Sub3)
ture error
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Only for training and service purposes
Error Type
Constant speed compressor Off due to
the excessive rise in discharge temp
Error Type
Wrong wiring at the outdoor 3
phase(Reverse phase / Phase omis-
sion)
Error Type
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 Type
Abnormal resistance value of sensor
measurement ( Open / Short )
Error Type
Abnormal resistance value of sensor
measurement( Open / Short )
Error Type
Abnormal resistance value of sensor
measurement( Open / Short )
Error Type
Abnormal resistance value of sensor
measurement ( Open / Short )
Error Point
Error Point
Error Point
Error Point
Error Point
Error Point
Error Point
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Main Reasons
Refer to CH33
Main Reasons
Refer to CH54
Main Reasons
Refer to CH104
Main Reasons
Refer to CH43
Main Reasons
Refer to CH42
Main Reasons
Refer to CH44
Main Reasons
Refer to CH46
LGE Internal Use Only