Cond Out Temperature Sensor Error (Open/Short) - Samsung AM080FX A Series Service Manual

Troubleshooting
4-3 Appropriate Measures for Different Symptom (cont.)

4-3-18 Cond Out Temperature Sensor Error (Open/Short)

Outdoor unit
display
Duct, Cassette (1/2 Way),Console, Celing
Operation Defrost Timer Fan
Indoorunit
display
◑
※ ●: ON ◑: Flash ×: OFF
Judgment
- Detect according to temperature detected with the cond-out temperature thermistor.
Method
Cause of
- Cond-out temperature sensor is defective. (open/short)
problem
1. Cause of problem
sensor connector (CN43) connected
After separating the outdoor Cond Out sensor
connector from the PBA, measure the
resistance value between the two terminals.
value significantly stray from the following
temperature table?
Restart operation after replace the PBA.
Samsung Electronics
Filter/
MPI
× × ◑ ×
Is the COND OUT
to PBA?
Yes
Did the resistance
Yes
Cassette (4/Mini4 Way)
Operation Defrost Timer Filter Operation Timer Turbo 24℃
◑ × ◑
No
Restart operation after connecting
the connector to the PBA.
Resistance value measure part
COND
CN43 (5, 6)
No
Replace this part as it is the defective of
the outdoor Cond Out sensor itself.
Wall-mounted (NeoForte)
× ◑ × ×
Temperature (°C)
70
60
50
40
30
20
10
0
-10
27℃
◑ ×
COND
Resistance (KΩ)
2.2
3.0
4.2
5.8
8.3
12.1
18.0
27.3
43.0
173