Samsung FH052EAMT Service Manual page 26

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