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Poor cooling in Fresh food section
1
Check the sensor resistance.
7
Explain to customer
2
Reset the unit and
Input Test1 Mode
(Push the button 1 time)
3
Open the fresh food door and
Check the air flow D amper?
No
Yes
Check the
dampe
r
Go to 5
4
Check the air temperature.
Is it cold?
No
Yes
Check the
Compressor
and sealed
system
5
Check the Fan Motor voltage
Is Fan Motor voltage 8~14V?
Yes
Replace
Main PCB
No
6
Check the Fan Motor voltage
Is Fan Feed Back voltage 0V, 5V?
No
Change the
motor
Yes
Go to 7
CON6
R1SNR
5
th
pin ~ 6
th
pin
Resistance [Ω]
23ºF / -5ºC
38k
32ºF / 0ºC
30k
41ºF / 5ºC
24k
50ºF / 10ºC
19.5k
59ºF / 15ºC
16k
CON6
CON8
CON8
TEST MODE 1
Voltage [V]
CON8
18
th
pin ~ 22
th
pin
Not 0V, 5V
TEST MODE 1
Voltage [V]
CON8
18
th
pin ~ 20
th
pin
8~14V
92