Outdoor Temperature Sensor Error - Samsung AM080FXWANR Service Manual

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

4-3-17 Outdoor Temperature Sensor Error

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 outdoor-ambient temperature thermistor.
Method
Cause of
- Outdoor temperature sensor is defective. (open/short)
problem
1. Cause of problem
Is the outdoor
temperature sensor connector (CN43)
connected to PBA?
After separating the outdoor temperature
sensor connector from the PBA, measure
the resistance value between the terminals.
Did the resistance
value significantly stray from the following
temperature table?
Restart operation after replace the PBA
Samsung Electronics
Filter/
Operation Defrost Timer Filter Operation Timer Turbo 24℃
MPI
× × ◑ ×
Yes
Yes
Cassette (4/Mini4 Way)
◑ × ◑ ×
No
Restart operation after connecting
the connector to the PBA.
Resistance value measure part
OUT
CN43 (7, 8)
No
Replace this since it is the defective of
the outdoor temperature sensor itself.
Wall-mounted (NeoForte)
◑ × × ◑
NOTE1
Temperature(°C) Resistance(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
27℃
×
OUT
100