LG ATNH09GRLE2 Svc Manual page 117

4. Trouble Shooting
6.7 Troubleshooting Outdoor Error
CH 29 (Compressor Over Current)
Items for
checking
Checking
power source
Checking
for
over-load
operation
Checking
compressor
Checking
PCBA
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Only for training and service purposes
Checking
Checking
input voltage connection
Checking
Checking
outdoor
devices for
fan operation
shielding
Checking
refrigerant
for over/shorts
Checking
Checking
compressor
compressor
wiring
resistance
Checking
Checking
IPM
connection
unit of IPM
state
- 117 -
Sub-items for
checking
power
state
Checking
pipes
outdoor
for Bending /
blocking
Checking
compressor
phase insulation
resistance
Checking
Compressor
single
current
detection circuit
Checking EEV
for motion
Checking DC
link voltage
LGE Internal Use Only