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

4-4-27 EVI In 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
sensor connector (CN44) connected
Separate the connector of the Outdoor EVI In
Temperature sensor from the PCB and measure
the resistance value between the 2 terminals.
Is the resistor value matching with
Restart operation after replace the PCB
Samsung Electronics
Duct, Cassette (1/2 Way),Console, Celing
Timer Fan Filter/MPI Operation Defrost
× ◑ ◑ ◑
Outdoor EVI IN
to PCB?
Yes
Resistance value measure part
"NOTE1" table?
Yes
Cassette (4/Mini4 Way) Wall-mounted (NeoForte)
Timer Filter Operation
◑ ◑ ◑ ●
×
No
Restart operation after connecting
the connector to PCB
Temperature(°C)
EVI-IN
CN44 (3,4)
No
Replace this part as it is the defective of the
Outdoor EVI In Temperature sensor itself.
Troubleshooting
Timer Turbo
◑ ◑
EVI-IN
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
-10 43.0
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