Problem Diagnosis Chart - LG LTNS16121V /00 Service Manual

5.8 PROBLEM DIAGNOSIS CHART

PROBLEM
Freezing is not possible
Freezing is poor (not
enough).
Freezing is not
efficient.
Food in refrigerator
compartment is freezing.
Humidity or ice are
inside refrigerator
compartment.
Humidity is formed
in cabinet (refrigerator
exterior).
There are abnormal
noises.
Door closing is not
easy.
Ice and food have an
unpleasant odor.
For other possible problems, make reference to the next points in order to solve problems:
Check if humidity is
formed in freezer
compartment
Check the
refrigeration system
CHECK POINTS
¿Is the power cord unplugged from the outlet?
Check if the power switch is set to OFF.
Check if switch fuse has short circuit.
Measure the voltage of power outlet.
Check if the refrigerator is placed so close to the wall.
Check if the refrigerator is placed so close to the stove,
gas oven and sunlight.
¿Is the ambient temperature high or the door is closed?
Check if hot foods have been recently stored.
¿Was the door continuously open or was not properly
closed?
Ambient temperature is too low (10° C)..
¿Is there food placed in the cooling air outlet?
Check if the temperature control is set in 3.
¿Is liquid food storage?
Hot food was placed inside the refrigerator.
The door was continuously opened or it's not properly
closed
If the humidity and the ambient temperature are high.
There's a gap between the door gasket and the cabinet.
¿Is the unit placed over a firm and even surface?
¿Is there any unnecessary object placed in the back side
of the refrigerator?
Check if the drip tray is not firmly fixed.
Check if the compressor cover is properly is in its
correct position.
Check if the door gasket is clean.
¿Is the appliance placed on proper floor conditions?
¿Is there a big amount of food inside the refrigerator?
Check if the inside of the unit is dirty.
Foods with a strong odor were not properly wrapped.
It smells like plastic.
The cycle is not
working
Plug to the outlet.
Set power switch in ON position.
Replace with a normal fuse.
If the voltage is low, report this condition with your
electrical company.
Leave a clearance of 10 cm between refrigerator and
walls.
Place your refrigerator away from heat sources.
Decrease temperature in the room.
Storage the food when is already cold.
Do not open the door so often and close it firmly.
For a cooler freezer you must set the temperature in
a position between 2-3 and set the refrigerator control
in position 7.
Place the food in the high-temperature section
(front part).
Set the control in 2.
Seal the food with vinyl wrap.
Store food when is already cold.
Do not open the door so often and close it firmly.
Wipe moisture with a dry cloth. It will disappear
in low temperature and humidity.
Repair the gap by changing the door gasket.
Adjust the leveling screws and place it in a firm place.
Remove the objects.
Fix the tray in its original position.
Place the cover in its original position.
Clean door gasket.
Place over firm door and adjust the leveling screws.
Check that the food is not blocking the doors.
Clean the inside of the unit.
Wrap all the foods with a strong odor.
New products usually smell like plastic, but this
condition disappears 2 weeks later.
Not defrosting
22
SOLUTION
Replace the components
of the defrosting circuit
Repair the cycle