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Refrigerator room lamp doesn't work
1
Check the Freezer door switch.
Does it feel sticky?
No
2
Check the door S/W resistance.
Is it correct compared with table?
Normal
Door S/W
Door Close
Yes
3
Check the PCB Voltage.
Is CON7 7th pin ~ 8th pin
voltage 12V?
INSPECTION
POINT
CON7
7
th
pin ~ 8
th
pin
Yes
Change the
Yes
Door S/W
Change the
No
Door S/W
Door S/W
Resistance [Ω]
Infinity
0
Change the
No
PCB
CON7
DOOR
Voltage [V]
0~2V
Close
Open
12V
4
Check the LED Lamp voltage.
Is it 0~2V? (While door closed)
Yes
5
Check the LED Lamp voltage.
Is it 12V? (While door open)
Yes
6
Explain to customer
Change the
No
Door S/W
Change the
No
LED Lamp
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