2-6. Icing
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.
- 57 -
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