Samsung FH052EAMT Service Manual page 27

Control Specification & Troubleshooting
5-3-3 Outdoor discharge temperature sensor error(OPEN/SHORT)
Outdoor unit display
Indoor unit display
How to determine
Reason of error
Is not separated the outdoor
discharge temperature sensor connector
from PCB?(CN42)
To measure the resistance value
between two terminals after separating
the outdoor discharge temperature
sensor connector from PCB
At this time, Is not largely
deviate the resistance value from
side table value?
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
26
Er → t3 (Outdoor discharge temperature sensor OPEN/SHORT error)
(Operation) (Timer)
Disconnection and short of outdoor heat exchanger temperature sensor
Disconnection or leak of Applied sensor
Yes
Yes
Yes
Yes
(Airflow) (Filter)
No
Re-operation
after connection to
connector PCB
No
Outdoor heat exchanger
temperature self badness
(exchange)
No
PCB and sensor are normal.
To perform the test
operation by use of K2
Temperature Resistance
(˚C) (kΩ)
130 8.9
120 11.2
100 18.5
80 32
60 59
25 200
20 242
10 362
0 553
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Samsung Electronics