LG GR-B197GVQ Service Manual page 77

2-3.
Temperature
T R O U B L E D I A G N O S I S
- 7 7 -
Problems Causes Checks Measures Remarks
High Poor cool air circulation due to faulty
-
Lock
----
Check resistance with
a
-
Replace fan motor.
temperature
fan motor. tester.
in the freezer
0 Ω:
short.
compartment. ∞Ω: cut.
-
Reconnect and reinsert.
-
Rotate
rotor manually
and check
rotation.
-
Wire is cut.
-
Bad terminal
contact:
Check
-
Maintain clearance and
remove
ice
terminal
visually. (Repair
and/or
replace
shroud if fan
-
Fan constraint.
--
Fan shroud is constrained
by
shroud
contact: Confirm deformation).
visually.
--
Fan
icing:
Confirm
visually.
Faulty fan motor due to faulty door
-
Iced button (faulty) operation:
-
Confirm icing
causes
and repair.
switch operation. Press button to check
-
Replace door switch.
-
Faulty
button pressure and
contact:
Press button
to
check
operation.
-
Door
cannot
press door switch
-
Door sag: fix door.
button: Check visually.
-
Door liner bent:replace door
or
attach sheets.
Bad radiation conditions in
-
Check the clearance between the
-
Keep
clearance between
-Thefanmaybe
compressor
compartment.
refrigerator and wall (50
mm
in refrigerator and walls (minimum broken if cleaning
minimum). 50 mm). performs while the
-
Check dust
on
the
grill
in
-
Remove dust and contaminants
refrigerator
is
on.
compressor
compartment.
from
grill
for easy heat radiation.
-
Check dust
on
the coils condenser.
-
Remove the dust with
vacuum
cleaner from the coils condenser
while the refrigerator is off.