Samsung AM072BXV Series, Service Manual

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Samsung Electronics 98
Troubleshooting
4-3-18 Cond Out Temperature Sensor Error (Open/Short)
1. Cause of problem
Yes
Is the COND OUT
sensor connector (CN43) connected
to PBA?
Did the resistance
value significantly stray from the following
temperature table?
After separating the outdoor Cond Out sensor
connector from the PBA, measure the
resistance value between the two terminals.
Restart operation after replace the PBA.
Restart operation after connecting
the connector to the PBA.
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
Outdoor unit
display
Indoorunit
display
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
Judgment
Method
- Detect according to temperature detected with the cond-out temperature thermistor.
Cause of
problem
- Cond-out temperature sensor is defective. (open/short)
4-3 Appropriate Measures for Different Symptom (cont.)
OUT
CN43(5.6)
Resistance value measure part
COND