Suction Temperature Sensor Error (Open/Short) - Samsung AM072FXVAFH series Service Manual

4-4-25 Suction Temperature sensor error (Open/Short)

Outdoor unit display
Indoorunit display
Judgment Method
∙ Refer to the judgment method below.
Cause of problem ∙ Disconnection or breakdown of relevant sensor. (More than 4.5V or 0.5V less than)
1. How to check
Outdoor unit suction
sensor connector (CN44) connected
Separate the connector of the Outdoor Suction
sensor from the PCB and measure the resistance
value between the 2 terminals.
Is the resistor value matching with
"NOTE1" table?
Restart operation after replace the PCB
Samsung Electronics
Duct, Cassette (1/2 Way),Console, Celing
Operation Defrost Timer Fan
× × ◑ ◑
※ ● : ON ◑ : Flash ×: OFF
to PCB?
Yes
Yes
Cassette (4/Mini4 Way)
Filter/MPI Operation Defrost Timer
◑ ◑ ◑
×
No
Restart operation after connecting
the connector to PCB
Resistance value measure part
SUCT
No
Replace this part as it is the defective of the
Outdoor Suction sensor itself.
Wall-mounted (NeoForte)
Filter Operation Timer Turbo
◑ ● ◑ ◑
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
Troubleshooting
SUCT
4-63