LG ATNH09GRLE2 Svc Manual page 119

4. Trouble Shooting
6.7 Troubleshooting Outdoor Error
CH 32 (Discharge pipe overheating error of Inverter)
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
input voltage
Checking
Checking
outdoor
devices for
fan operation
shielding
Checking
under/over
charging
with refrigerant
Checking
Checking
compressor
compressor
wiring
resistance
Checking
outset
Temperature
sensor
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Sub-items for
checking
Checking pipe
outdoor
blocking
Checking
compressor
phase insulation
resistance
Checking
the work
of EEV
LGE Internal Use Only