Samsung DVM S ECO BIG Series Service Manual page 69

■ Error on EVI (ESC) IN temperature sensor (Short or open). (E-321)
Outdoor unit Display
Indoor unit Display
Judgement Method
Cause of problem
Did the connector for
the EVI In Temperature
sensor break away
from the PCB?
Separate the connector of the Outdoor EVI In
Temperature sensor from the PCB and measure
the resistance value between the 2 terminals.
Did the resistance
value significantly stray
from the following
temperature table?
Restart operation after replace the PCB
Samsung Electronics
Duct, Cassette (1 / 2Way), Console, Ceiling
Operation
◑
Cassette (4Way / Mini 4Way)
Operation
◑
Duct, Cassette (1/2 Way), Console, Ceiling
Operation
◑
• Refer the next page
• Disconnection or breakdown of relevant sensor.
Yes
Yes
E-321
Defrost Timer
×
×
Defrost Timer
◑
×
Timer Turbo
× ×
※ ● ◑
: ON : Flash ×: OFF
No
Restart operation after connecting the connector
to PCB
No
Replace this part as it is the defective of the
outdoor EVI in temperature sensor itself.
Temperature(°C)
70
60
50
40
30
20
10
0
-10
Troubleshooting
Fan Filter / MPI
◑
×
Filter
×
24°C 27°C
◑
×
Resistance(KΩ)
2.2
3.0
4.2
5.8
8.3
12.1
18.0
27.3
43.0
4-27