76
SAMSUNG ELECTRONICS
9-2-4 Outdoor temperature sensor error
Indoor display
7 SEG DISPLAY DESCRIPTION
C221 Outdoor temperature sensor error
Outdoor display
Outdoor temperature sensor error
: LAMP ON : LAMP OFF : LAMP BLINK
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 resistance value
"B" 10kohm±3%at theroomtemperature
of 25
Is the sensor connector("A") connected
correctly in accordance with a color?
YES
YES
Connectthe sensor to PBA connector
supply power and measure the voltage of
"B"in the connector
NO
NO
Reconnect the sensor connector.
Sensor Replace
Sensor resistance value : 20
- 12.09kohm
30 - 8.31kohm
35 - 6.94kohm
40 - 5.83kkohm
Below 0.5Vdc or Over 4.5Vdc?
YES
NO
Exchange the Outdoor PBA
YES
Exchange the Outdoor PBA
Micom error or connector check
Model "A" "B"
All CN251 CN251 #1-#2
To Next Page
Loading...