Outdoor Temperature Sensor Error - Samsung AM072/096/120/144FXVAFH Service Manual

Troubleshooting

4-4-17 Outdoor Temperature Sensor Error

Outdoor unit display
Operation Defrost
Indoorunit display
◑
※ ● : ON ◑ : Flash × : OFF
Judgment Method ∙ Refer to the judgment method below.
Cause of problem
∙ Outdoor temperature sensor Open/Short is defective.
1. How to check
temperature sensor connector (CN43)
connected to PCB?
After separating the outdoor temperature sensor
connector from the PCB, measure the resistance
value between the terminals.
value significantly stray from the following
temperature table?
Restart operation after replace the PCB
4-48
Duct, Cassette (1/2 Way),Console, Celing
Timer Fan Filter/MPI Operation Defrost
× × ◑
×
Is the outdoor
Yes
Did the resistance
Yes
Cassette (4/Mini4 Way)
Timer Filter Operation
◑ ◑ ×
×
No
Restart operation after connecting
the connector to the PCB.
Resistance value measure part
OUT
No
Replace this since it is the defective of
the outdoor temperature sensor itself.
Wall-mounted (NeoForte)
Timer Turbo 24℃ 27℃
◑ × × ◑ ×
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
Samsung Electronics
OUT