Descriptions of symptoms Check Points Corrective Measures
▶ What is the solution for the
compressor noises?
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.
Explain it to customers and let
them clean dust or any other
foreign substances in the
machine compartment.
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 compressor is dislocated
due to impact during its
transportation such as
moving-in. → Check if it’s
dislocated when it is more
noisy after moving-in.
▶ During the comp start-up, iron
friction noises occur.
What causes them?
The reciprocation piston could get worn out or inner components could
get dislocated.
▶ What can be checked when the
unit sends out noises?
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.
To do list
4. Check the installation status
4-4. Q&A
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