LG LRSC26980TT Service Manual - Page 79

Icing

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TROUBLE DIAGNOSIS - 79 - 16. Icing Problems Causes Checks Measures Remarks Icing in the 1) Bad circulation of cool air. - Check the food is stored properly refrigerator - Clogged intake port in the (check discharge and intake port compartment. refrigerator compartment. are clogged). - Damper icing. - Sealing is not good. - Check icing on the surface of - Pipe icing. - Too much food is stored and clogs baffle and cool air path (pipe) after - Discharging the discharge port. dissembling the container box. pipe icing. - Bad defrosting. - Check icing at intake ports of freezer and refrigerator compartment. - Be acquainted with how to use. - Sealing on connecting parts. - Check the damper and replace it if it has defects. - Check defrost. (After forced defrosting, check ice in the evaporator and pipes.) - Check the defrost related parts if problem is caused by faulty defrosting. 2) Faulty door or refrigerator compartment. - Faulty gasket. - Faulty assembly. - Check gasket attached conditions. - Check door assembly conditions. - Correct the gasket attachment conditions and replace it. - Door assembly and replacement. - Replacement should be done when it cannot be repaired. 3) Overcooling in the refrigerator compartment. - Faulty damper in the refrigerator compartment. - Faulty MICOM (faulty sensor) - Check refrigerator compartment is overcooled (when button pressed on weak). - Check parts are faulty. - Replace faulty parts. 4) Bad defrosting - Heater wire is cut. - Defective defrost sensor. - Defrosing cycle. - Check frost on the evaporator after dissembling shroud and fan grille. - Check ice on intake port of freezer and refrigerator compartment. - Check parts related to defrosting. - Moisture does not freeze - Check defrosting. (Check ice on the on the evaporator but evaporator and pipe.) can be sucked into the refrigerator, where it condenses and freezes. This interferes with cold air circulation and sublimation of the ice. 5) Customers are not familiar with this machine. - Door opens. - High temperature, high moisture, and high load. - Check food interferes with door closing. - Check ice on the ceilings. - Be acquainted with how to use.

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16. Icing
TROUBLE DIAGNOSIS
- 79 -
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 it
and refrigerator compartment.
condenses and freezes.
This interferes with cold
air circulation and
sublimation of the 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.