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PROBLEM
INDICATED BY
CHECK
CHECKING METHOD
CAUSE
SOLUTION
COOLING is
poor.
DEFROSTIN
G is poor.
If
REFRIGERATOR
TEMPERATURE
is too low.
NO
DEFROSTING.
1. If FREEZER
TEMPERATURE is
normal.
2. If amount of cool air
from FAN MOTOR is
sufficient.
3. Door Line contact.
1. If HEATER emits heat.
2. If DRAIN PIPE is
blocked.
3. If ice remains after
DEFROSTING.
Check is FREEZER
TEMPERATURE is too
low.
Make sure that the
amount and speed of cool
air are sufficient by
touching the check
supplied on the
REFRIGERATOR.
Check door seal when
door is closed.
USE TEST MODE3
(forced DEFROSTING).
Check DRAIN PIPE.
Make sure that
DEFROST SENSOR is
connected.
Make sure that
FREEZER
/REFRIGERATOR
DOOR is closed.
FAN MOTOR is poor.
Passage of cool air is
blocked.
EVA frozen.
Door liner damaged.
HEATER disconnection.
TEMPERATURE FUSE
disconnection.
Connection is poor.
DEFROST-SENSOR is
poor.
HEATER RELAY is poor.
DRAIN PIPE is blocked.
Connection is poor.
DOOR does not close
properly.
Make sure the DOOR
isattached.
Replace FAN MOTOR.
Remove impurities.
See DEFROSTING is
poor.
Replace Door liner.
Replace HEATER.
Replace
TEMPERATURE FUSE.
Check EVAPORATOR
connection and wire of
MAIN PWB
CONNECTOR.
Replace DEFROST-
SENSOR.
Replace RY3 of MAIN
PWB.
Remove ice and
impurities.
Check HEATER PLATE
resistance.
Reassemble the
DEFROST-SENSOR.
Reassemble DOOR.
Replace GASKET.
Summary of Contents for LRFD21855ST
Page 11: ...5 CIRCUIT DIAGRAM 11 ...
