Samsung AR18HSFSHWKXCV - 10-2-6 Outdoor temperature sensor error

Samsung Electronics 10-7
10-2-6 Outdoor temperature sensor error
Indoor display
3-LED DISPLAY
7-SEG DISPLAY
DESCRIPTION
LED1 LED2 LED3
E221 Outdoor temperature sensor error
◎
{
◎
Outdoor display
◎
{
◎
Outdoor temperature sensor error
O
LED ON
◎
LED BLINKING
{
LED OFF
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
YES
Exchange the Outdoor PBA
YES
Exchange the Outdoor PBA
NO
NO
NO
Is the sensor resistance value
"B" 10kohm±3 at the room temperature
of 25ఁ
Is the sensor connector("A") connected
correctly in accordance with a color?
YES
YES
Is the connection of power cable
and communication cable normal?
Sensor Replace
Sensor resistance value : 20ఁ - 12.09kohm
30ఁ - 8.31kohm
35ఁ- 6.94kohm
40ఁ - 5.83kkohm
Reconnect the sensor connector.
Connect the sensor to PBA connector
supply power and measure the voltage of
"B"in the connector
Below 0.5Vdc or Over 4.5Vdc?
Micom error or connector check
MODEL "A" "B"
AR12(09)HSFSHWK CN251 CN251 #1-#2
AR18HSFSHWK CN502 CN502 #1-#2
AR24HSFSHWK CN43 CN43 #1-#2