Samsung FH052EAMT - Page 27

Samsung Electronics26
Control Specification & Troubleshooting
5-3-3 Outdoor discharge temperature sensor error(OPEN/SHORT)
Re-operation
after connection to
connector PCB
Outdoor heat exchanger
temperature self badness
(exchange)
PCB and sensor are normal.
To perform the test
operation by use of K2
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 1 times.
At this time, is occurred the difference
between the out temperature and data?
Re-operation after PCB exchange
Is not separated the outdoor
discharge temperature sensor connector
from PCB?(CN42)
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 outdoor discharge temperature
sensor connector from PCB
Temperature
(˚C)
130
120
100
80
60
25
20
10
0
-10
Resistance
(kΩ)
8.9
11.2
18.5
32
59
200
242
362
553
Outdoor unit display
Indoor unit display
How to determine
Reason of error
Er → t3 (Outdoor discharge temperature sensor OPEN/SHORT error)
(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 26