8.7 RELIABILITY FAULTS:

NOISE WHEN DOORS OPEN AND CLOSE

CHECK AND TEST 1

Step 1

Check to verify whether door and shelves are
in normal position,
and whether there is abnormal friction between food packages and appliance walls.

DIAGNOSIS 1



CHECK AND TEST 2

Step 1

Listen carefully to detect whether noise is coming from top, middle, or bottom hinge.

Step 2

Listen carefully to detect
whether noise comes
from bottom hinge.

Step 3

Use a small brush to add
Vaseline to hinge pins
and hinge holes.
Open and close door
several times.

DIAGNOSIS 2




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