Samsung AM072/096/120/144FXVAFH, Service Manual

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Troubleshooting
Samsung Electronics 4-49
4-4-18 Cond Out Temperature Sensor Error (Open/Short)
∙ Disconnection or breakdown of relevant sensor.
∙ Refer to the judgment method below.
Indoorunit display
Judgment Method
Cause of problem
Outdoor unit display
1. How to check
Yes
Is the COND OUT
sensor connector (CN43) connected
to PCB?
Did the resistance
value significantly stray from the following
temperature table?
After separating the outdoor Cond Out
sensor connector from the PCB, measure the
resistance value between the two terminals.
Restart operation after replace the PCB
Restart operation after connecting
the connector to the PCB.
Replace this part as it is the defective of the
outdoor Cond Out sensor itself.
Yes
No
No
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
Resistance value measure part
COND
COND
Duct, Cassette (1/2 Way),Console, Celing Cassette (4/Mini4 Way) Wall-mounted (NeoForte)
Operation Defrost Timer Fan Filter/MPI Operation Defrost Timer Filter Operation Timer Turbo 24
℃
27
℃
◑ × × ◑
×
◑
×
◑ × ◑ × × ◑ ×
※ ● : ON ◑ : Flash × : OFF