Samsung AM080FXWANR, Service Manual, Page: 114 / 295

Troubleshooting
Samsung Electronics 111
4-3-27 EVI In Temperature sensor error (Open/Short)
1. Cause of problem
Outdoor EVI IN
sensor connector (CN44) connected
to PBA?
Is the resistor value matching with
“NOTE1” table?
Separate the connector of the Outdoor EVI In
Temperature sensor from the PBA and measure
the resistance value between the 2 terminals.
Restart operation after replace the PBA
Restart operation after connecting
the connector to PBA
Replace this part as it is the defective of the
Outdoor EVI In Temperature sensor itself.
No
No
Yes
Yes
Resistance value measure part
EVI-IN
EVI-IN
CN44 (3, 4)
NOTE1
Temperature(°C) Resistance(KΩ)
70
60
50
40
30
20
10
0
-10
2.2
3.0
4.2
5.8
8.3
12.1
18.0
27.3
43.0
Outdoor unit
display
Indoorunit
display
Duct, Cassette (1/2 Way),Console, Celing Cassette (4/Mini4 Way) Wall-mounted (NeoForte)
Operation Defrost Timer Fan Filter/MPI Operation Defrost Timer Filter Operation Timer Turbo
× × ◑ ◑ ◑ × ◑ ◑ ◑ ● ◑ ◑
※ ● : ON ◑ : Flash ×: OFF
Judgment
Method
∙ Detect according to temperature detected with the EVI-In pipe temperature thermistor.
Cause of
problem
∙ EVI-In temperature sensor is defective. (open/short)
4-3 Appropriate Measures for Different Symptom (cont.)