LG GR-B197DVCA, Service Manual

Page: 103 / 119

4-3. Odor and Frost
TROUBLE DIAGNOSIS
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Problems Checks and Measures
Odor in the refrigerator compartment.
■
Explain the basic principles of food odor.
• Each food has its own peculiar odor. Therefore it is impossible to prevent or
avoid food odor completely when food is stored in the completely sealed
refrigerator compartment. Deodorizer can absorb some portions of the odor but
not completely. The intensity of odor depends on refrigerator conditions and
environments.
■
Check the temperature control button and set at “strong”.
• Clean inside of the refrigerator with detergent and remove moisture. Dry inside
the refrigerator by opening the door for about 3 or 4 hours and then set the
temperature control button at “strong”.
Frost in the freezer compartment
■
Explain the basic principles of frost formation.
• The main causes for frosting:
- Door was left open.
- Air penetration through the gasket
- Too frequent door opening. (parties. etc.)
- Hot foods are stored before they are cooled down. The temperature of freezer
is -19°C. if temperature is set at “MID”. If hot air comes into the refrigerator,
fine frost forms as cold air mixes with hot air. If this happens quite often, much
frost forms inside of the refrigerator. If the door is left open in Summer, ice may
form inside of the refrigerator.
Frost in ice tray.
■
Explain basic principles of frost formation.
• When ice tray with full of water is put into a freezer compartment, the water
evaporates. If cool air fan operates, the moisture attached to the jaw (protruded
part) of ice mold shall freeze and form frost. If warm water was put into the ice
mold, the situation will become worse.