LG GR-B197GVQ Service Manual page 82

2-6.
Icing
T R O U B L E D I A G N O S I S
- 8 2 -
Problems Causes Checks Measures Remarks
Icing in the 1) Bad circulation of cool air.
-
Check the food is stored properly
-
Be acquainted with how to
use.
-
Check the defrost
refrigerator
-
Clogged intake
port
in the (check discharge and intake
port
-
Sealing
on
connecting
parts.
related
parts
if problem
compartment.
refrigerator
compartment. are
clogged).
-
Check the damper and replace is caused by faulty
-
Damper icing.
-
Sealing is not good.
-
Check icing
on
the surface of it if it has defects. defrosting.
-
Pipe icing.
-
Too much food is stored and clogs baffle and cool air path (pipe) after
-
Check defrost. (After forced
-
Discharging the discharge
port.
dissembling the container box. defrosting,
check ice in the
pipe icing.
-
Bad
defrosting.
-
Check
icing at
intake
ports
of
evaporator
and
pipes.)
freezer and
refrigerator
compartment.
2) Faulty door
or
refrigerator
-
Check gasket attached conditions.
-
Correct the gasket attachment
-
Replacement should
compartment.
-
Check door assembly conditions. conditions and replace it. be done when it
-
Faulty gasket.
-
Door assembly and replacement. cannot be repaired.
-
Faulty assembly.
3) Overcooling
in the
refrigerator
-
Check
refrigerator compartment
-
Replace faulty parts.
compartment.
is overcooled
(when
button
-
Faulty damper in the
refrigerator pressed
on
weak).
compartment.
-
Check
parts are
faulty.
-
Faulty MICOM (faulty sensor)
4)
Bad
defrosting
-
Check frost
on
the
evaporator
-
Check
parts
related
to defrosting.
-
Moisture does
not
freeze
-
Heater wire is
cut.
after
dissembling
shroud and fan
-
Check
defrosting. (Check
ice
on
the
on
the
evaporator
but
-
Defective defrost
sensor.
grille. evaporator
and
pipe.)
can
be sucked into the
-
Defrosing cycle.
-
Check ice
on
intake
port
of freezer
refrigerator,
where
and refrigerator
compartment.
it condenses and freezes.
This interferes with cold
air circulation and
sublimation of he ice.
5)
Customers
are
not
familiar with
-
Check food interferes with door
-
Be
acquainted
with how
to
use.
this machine.
closing.
-
Door opens.
-
Check ice
on
the
ceilings.
-
High temperature, high
moisture,
and
high
load.