8-3 TROUBLESHOOTING
- 41 -
PROBLEM
INDICATED BY
CHECK
CHECKING METHOD
CAUSE
SOLUTION
POWER
SOURCE is
poor.
COOLING is
poor.
1. The whole
2. DISPLAY LED
NO COOLING.
FREEZER
TEMPERATURE
is incorrect
1. FREEZER/
REFRIGERATOR.
2. If LAMP is dim.
3. The connection of the
MAIN PWB
CONNECTOR.
1. If the COMPRESSOR
operate.
2. If refrigerant is leaking.
1. If FAN MOTOR
operates.
2. If DEFROSTING is
normal.
3. If SENSOR is normal.
4. Door Line contact.
Check if
FREEZER/REFRIGERA
TOR DOOR IS OPEN
and check display.
Check visually.
Check connection of
CONNECTOR.
USE TEST MODE1
(forced COOLING).
If less than 7 minutes
pass after compressor
shuts off, don’t press the
KEY and wait.
Measure the amount of
frost sticking on
EVAPORATOR and the
surface temperature of
the condenser pipe.
USE TEST MODE1
(forced COOLING).
Check the amount of frost
sticking on the
EVAPORATOR .
of the Refrigerator
SENSOR.
Check the seal when the
door is closed.
POWER SOURCE is
poor.
Applied voltage error.
CONNECTOR
connection is poor.
TRANS FUSE is open.
COMPRESSOR locked
or blocked.
OLP, PTC is poor.
COMPRESSOR RELAY
is poor.
THE CONNECTING
WIRE is poor.
Refrigerant leakage.
FAN MOTOR is poor.
CONNECTING WIRE is
poor.
DEFROSTING is poor.
SENSOR RESISTANCE
is poor.
Door liner damaged.
Replace Main PWB
Replace
Main PWB
Reconnect
CONNECTOR
Replace
Main PWB
Replace OLP, PTC.
Replace MAIN PWB.
Check the connection of
the black wire of the
MAIN PWB
CONNECTOR (CON3).
Replace the leaking part
and replace any lost
refrigerant.
Replace the FAN
MOTOR.
Certify the MOTOR and
the connection of the
black wire of the MAIN
PWB CONNECTOR
(CON4).
See DEFROSTING is
poor.
Replace SENSOR.
Replace door liner.
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