Evi Out Temperature Sensor Error (Open/Short) - Samsung AM072/096/120/144FXVAFH Service Manual

Troubleshooting

4-4-28 EVI Out Temperature sensor error (Open/Short)

Outdoor unit display
Operation Defrost
Indoorunit display
×
※ ● : ON ◑ : Flash × : OFF
Judgment Method
∙ Refer to the judgment method below.
Cause of problem
∙ Disconnection or breakdown of relevant sensor.
1. How to check
Outdoor EVI OUT sensor
connector (CN44) connected to PCB?
Separate the connector of the Outdoor EVI Out
Temperature 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
4-68
Duct, Cassette (1/2 Way),Console, Celing
Timer Fan Filter/MPI Operation Defrost
× ◑ ◑ ◑
Yes
Resistance value measure part
EVI-OUT
CN44 (5,6)
Yes
Cassette (4/Mini4 Way) Wall-mounted (NeoForte)
Timer Filter Operation
◑ ◑ ◑ ●
×
No
Restart operation after connecting
the connector to PCB
Temperature(°C)
-10
No
Replace this part as it is the defective of the
Outdoor EVI Out Temperature sensor itself.
Timer Turbo
◑ ◑
EVI-OUT
NOTE1
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
43.0
Samsung Electronics