Samsung Electronics
Troubleshooting
12-8
12-3-3 Outdoor discharge temp. sensor error(OPEN/SHORT)
Reoperation
after connect to
connector PCB
Outdoor heat exchanger
temp. is defective(replace)
PCB and sensor are normal.
To perform the test
operation by use of K2
Yes
No
Yes
Check the out temp.
sensor is normal or not by use of out
data display part
➞
Check the temp. data is
normal or not after pressing K4 1 times.
At this time, is occurred the difference
between the out temp. and data?
Reoperation after PCB replacement
Does the outdoor discharge
temp. sensor connected to PCB?
(CN42)
At this time, Is largely
deviate the resistance value from
side table value?
Measure the resistance value
between two terminals after separating
the outdoor discharge temp.
sensor connector from PCB
Temp.
(˚C)
130
120
100
80
60
25
20
10
0
Resistance
(k
Ω
)
8.9
11.2
18.5
32
59
200
242
362
553
No
No
Yes
Outdoor unit display
Indoor unit display
How to determine
Reason of error
(Outdoor discharge temp. sensor OPEN/SHORT error)
(Operation)
(Timer)
(Airflow)
(Filter)
Disconnection and short of outdoor discharger temp. sensor
Disconnection or leak of Applied sensor
24524(1)_1 56/10/3 7:10 PM Page 4-45
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