Samsung RT53 Service Manual page 68

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REFERENCE INFORMATION
Descriptions of symptoms
● What is the solution for the
compressor noises?
● During the comp start-up, iron
friction noises occur.
What causes them?
● What can be checked when the
unit sends out noises?
● Why is the food melt even
though the display of the freezer
compartment shows -20°C?
● Why is the fridge compartment
not cool? (Not a defect)
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Check Points
For old refrigerators
Dust could get built-up in the
machine compartment. Then, its
ventilation would get restricted
which makes the refrigerator
overheated resulting in the increase
of the noise level.
As the vibration proof rubbers get
hardened, noises generate during
the comp operation.
(The noise level is quite high.)
→ Replace the vibration proof
rubbers.
The reciprocation piston could get worn out or inner components could
get dislocated.
1. Check its symptoms and patterns.
2. Check if the unit is installed on a firm and leveled floor.
3. Check if the unit is installed close to the customer's living area.
4. Check if the panel on the machine compartment hits on the rear wall
and the unit has enough clearance with the rear wall.
5. Check if the refrigerant pipes are shaped as normal.
Check the compartment
temperature with a thermometer.
Advise customers to adjust its temperature level to one or two step
higher. For example, when the ambient temperature is low such as in
winter (especially, when you use it in the morning with the door not being
opened or closed during the night), the compartment temperature could
get increased by 1~2℃ So, advise customers to shift its temperature leve
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Samsung 34648123
Refrigerador WD856UH
Corrective Measures
Explain it to customers and let
them clean dust or any other
foreign substances in the machine
compartment.
Explain it to customers and let
them clean dust or any other
foreign substances in the machine
compartment.
If it is considered to be low cooling
When the BLDC motor fan does no
rotate because its restriction is not
picked up. When the evap-orator
is frozen-up (defrost it) Temp
detection error according to the
characteristic change of the ther-
mistor (set the compartment tem-
perature or replace the thermistor)