Samsung FH052EAMT - Page 26

25Samsung Electronics
Control Specification & Troubleshooting
5-3-2 Outdoor heat exchanger temperature sensor error(OPEN/SHORT)
Temperature
(˚C)
70
60
50
40
30
20
10
0
-10
Resistance
(kΩ)
2.2
3.0
4.2
5.8
8.3
12.1
18.0
27.3
43.0
Reoperation
after connection to
connector PCB
Outdoor heat exchanger
temperature self badness
(exchange)
PCB and sensor are
normal.
Yes
Yes
Yes
To check the out temperature
sensor is normal or not by use of
out data display part
➞ To check the temperature data is
normal or not after pressing K4 2 times.
At this time, is occurred the difference
between the out temperature and data?
Reoperation after PCB exchange
Is not separated the out
heat exchanger temperature sensor
connector from PCB?(CN41)
At this time, Is not largely
deviate the resistance value from side
table value?
Yes
To measure the resistance value
between two terminals after separating
the out heat exchanger temperature
sensor connector from PCB
Outdoor unit display
Indoor unit display
How to determine
Reason of error
Er → t2 (Outdoor heat exchanger temperature sensor error(OPEN/SHORT)
(Operation) (Timer) (Airflow) (Filter)
Disconnection and short of outdoor heat exchanger temperature sensor
Disconnection or leak of Applied sensor
No
No
No
DB98_14413A(1)_1** 10/9/03 5:41 PM Page 25