LG General Wall Mounted-Inverter Type Svc Manual page 40

Part 4 Trouble Shooting
2. Check temperature and pressure of refrigeration cycle.
Suction pressure
(Compared with (Compared with
the normal value) the normal value)
Higher
Lower
NOTICE
1. The suction pressure is usually 8.5~9.5 kg/cm
2. The temperature can be measured by attaching the thermometer to the low pressure tubing and wrap it with
putty.
40 Room Air Conditioner
Temperature
High Defective compressor
Normal Excessive amount of
refrigerant
Insufficient amount of
Higher refrigerant(Leakage)
Clogging
Cause of Trouble
. g at normal condition.
2
Description
Current is low.
High pressure does not quickly
rise at the beginning of operation.
Current is low.