Freezer room lamp doesn’t work
1
Check the Refrigerator door switch.
Does it feel sticky?
Yes
No
Change the
Door S/W
2
Check the door S/W resistance.
Is it correct compared with table?
No
Yes
Change the
Door S/W
Door S/W
3
Check the PCB Voltage.
Is
CON
3
19
th
pin ~
20
th
pin
voltage
12V?
No
Yes
Change the
PCB
6
Explain to customer
4
Check the LED Lamp voltage.
Is it 0~2V? (While door closed)
No
Yes
Change the
Door S/W
5
Check the LED Lamp voltage.
Is it 12V? (While door open)
No
Yes
Change the
LED Lamp
INSPECTION
POINT
DOOR
Voltage [V]
CON8
1
9
th
pin ~
20
th
pin
Close
0~2V
Open
12V
Resistance [Ω]
Door S/W
Door Close
0
-
64
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