Evi In Temperature Sensor Error (Open/Short) - Samsung AM072BXV Series Service Manual

Troubleshooting
4-3 Appropriate Measures for Different Symptom (cont.)
4-3-27

EVI In Temperature sensor error (Open/Short)

Outdoor unit
display
Duct, Cassette (1/2 Way),Console, Celing
Operation
Indoorunit
display
×
※ ● : ON ◑ : Flash ×: OFF
Judgment
• Detect according to temperature detected with the EVI-In pipe temperature thermistor.
Method
Cause of
• EVI-In temperature sensor is defective. (open/short)
problem
1. Cause of problem
sensor connector (CN44) connected
Separate the connector of the Outdoor EVI In
Temperature sensor from the PBA and measure
the resistance value between the 2 terminals.
Is the resistor value matching with
Restart operation after replace the PBA
Samsung Electronics
Defrost Timer Fan Filter/MPI
× ◑ ◑
Outdoor EVI IN
to PBA?
Yes
"NOTE1" table?
Yes
Cassette (4/Mini4 Way)
Operation Defrost
◑ × ◑
No
Restart operation after connecting
the connector to PBA
Resistance value measure part
EVI IN
CN44 (3, 4)
No
Replace this part as it is the defective of the
Outdoor EVI In Temperature sensor itself.
Wall-mounted (NeoForte)
Timer Filter Operation
◑ ◑ ●
EVI IN
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
Timer Turbo
◑ ◑
108