8.7 RELIABILITY

      FAULTS LIST:

NOISE WHEN DOOR 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 comes
from top 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