LG CT12 NR2 - Page 117

- 117 -
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4. Trouble Shooting
Items for
checking
Sub-items for
checking
Checking
power source
Checking
for
over-load
operation
Checking
compressor
Checking
PCBA
Checking
input voltage
Checking
outdoor
devices for
shielding
Checking
refrigerant
for over/shorts
Checking
compressor
wiring
Checking
power
connection
state
Checking
outdoor
fan operation
Checking
compressor
phase
resistance
Checking
pipes
for Bending /
blocking
Checking
compressor
insulation
resistance
Checking EEV
for motion
Ⲽ$IFDLGPS"$_7
Ⲽ3FGFSUPQBHF
Ⲽ.BOJGPMEHBVHF
Ⲽ3FGFSUPQBHF
Ⲽ3FGFSUPQBHF
Ⲽ3FGFSUPQBHF
Ⲽ3FGFSUPQBHF
'MPXPGUSPVCMFEJBHOPTJT
Checking
IPM
connection
state
Checking
single
unit of IPM
Checking
Compressor
current
detection circuit
Checking DC
link voltage
Ⲽ$IFDLJOHTDSFXT
GPSOPDPOOFDUJPOPS
VOGBTUFOJOH
Ⲽ3FGFSUPQBHFⲼ3FGFSUPQBHF Ⲽ3FGFSUPQBHF
6.7 Troubleshooting Outdoor Error
CH 29 (Compressor Over Current)