Samsung AR18HSFNBWKNEU Service Manual page 87

10-2-8 Outdoor Discharge temperature sensor error
Indoor display
3-LED DISPLAY
LED1 LED2
Outdoor display
LED ON LED BLINKING
1. Checklist :
1) Is the sensor connected correctly?
2) Is the sensor placed correctly?
3) Does the both terminal of sensor satisfy the resistance value in accordance with temperature?
4) Is the resistance value of sensor connection pull-up correct?
2. Troubleshooting procedure
Is the sensor connector("A")
connected correctly in accordance
Is the sensor resistance value
"B" 200kohm±3% at the room temperature
Connect the sensor to PBA connector
Is the connection of power cable
supply power and measure the voltage of "B"in the
and communication cable normal?
Below 0.5Vdc or Over 4.5Vdc?
Micom error or connector check
Exchange the Outdoor PBA
Samsung Electronics
LED3
LED OFF
with a color?
YES
of 25
YES
connector
NO
YES
7-SEG DISPLAY
E251
Outdoor Discharge temperature sensor error
NO
Reconnect the sensor connector.
NO
Sensor Replace
Sensor resistance value : 20
YES
Exchange the Outdoor PBA
DESCRIPTION
Outdoor Discharge temperature
sensor error
MODEL "A"
ALL CN251
- 242kohm
30 - 166ohm
35 - 138ohm
40 - 115kohm
"B"
CN251 #3-#4
10-9