Samsung AM072FXVAFH series - Compressor Discharge or Top 1;2 Temperature Sensor Error

Troubleshooting
Samsung Electronics 4-53
4-4-20 Compressor Discharge or Top 1/2 Temperature sensor error
Outdoor unit display
(Compressor 1 Discharge) (Compressor 2 Discharge)
(Compressor 1 Top) (Compressor 2 Top)
Indoorunit display
Judgment Method
 Refer to the judgment method below.
Cause of problem
 Compressor Discharge or Top Temperature sensor defective. (Open/Short)
Duct, Cassette (1/2 Way),Console, Celing Cassette (4/Mini4 Way) Wall-mounted (NeoForte)
Operation
Defrost TimerFan Filter/MPI
Operation
Defrost Timer Filter
Operation
TimerTurbo
◑××◑×◑×◑×◑×◑
※ ● : ON ◑ : Flash ×: OFF
1.
How to check
Yes
Compressor
discharge or Top temperature sensor
connector (CN43, CN45)
connected to PCB?
Is the resistor value matching with
“NOTE1” table?
After separating the Compressor Discharge or
Top Temperature sensor connector from the PCB,
measure the resistance value between
the two terminals.
Restart operation after replace the PCB
Restart operation after connecting
the connector to PCB
Replace this part as it is the defective o
f the
Compressor Discharge or
Top Temperature sensor itself.
Yes
No
No
Resistance value
measure part
Resistance value
measure part
TOP1 TOP2
TOP2
NOTE1
Temperature(°C) Resistance(K)
130
120
100
80
60
25
20
10
0
8.9
11.2
18.5
32.0
59.0
200.0
242.0
362.0
553.0
TOP1