Cond Out Temperature Sensor Error (Open/Short) - Samsung AM080 XV Series Service Manual

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

Outdoor unit
display
Duct, Cassette (1/2 Way),Console, Celing
Operation Defrost Timer Fan Filter/MPI Operation Defrost Timer Filter Operation Timer Turbo 24℃
Indoorunit
display
◑
※ ●: ON ◑: Flash ×: OFF
Judgment
∙ Refer to the judgment method below.
Method
Cause of
∙ Disconnection or breakdown of relevant sensor.
problem
1. Cause of problem
Is the COND OUT
sensor connector (CN43) connected
to PCB?
After separating the outdoor Cond Out sensor
connector from the PCB, measure the
resistance value between the two terminals.
Did the resistance
value significantly stray from the following
temperature table?
Restart operation after replace the PCB.
Samsung Electronics
× × ◑ ×
Yes
Yes
Cassette (4/Mini4 Way)
◑ × ◑ ×
No
Restart operation after connecting
the connector to the PCB.
Resistance value measure part
COND
CN43 (5, 6)
No
Replace this part as it is the defective of
the outdoor Cond Out sensor itself.
Troubleshooting
Wall-mounted (NeoForte)
◑ × ×
COND
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℃
◑ ×
4-35