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9-2-5 Outdoor Cond temperature sensor error
Indoor display
7-SEG DISPLAY
C231
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
with a color?
YES
Is the sensor resistance value
"B" 10kohm±3% at the room temperature
of 25 ℃ ?
YES
Connect the sensor to PBA connector supply
power and measure the voltage of "B"
communication cable
Below 0.5Vdc or Over 4.5Vdc?
NO
Micom error or connector check
YES
Exchange the Outdoor PBA
DESCRIPTION
Outdoor Cond temperature sensor error
LED OFF
Outdoor Cond temperature sensor error
Model
ALL
NO
Reconnect the sensor connector.
NO
Sensor Replace
Sensor resistance value : 20 - 12.09kohm
YES
Exchange the Outdoor PBA
53
"A"
"B"
CN251
CN251 #5-#6
30 - 8.31kohm
35 - 6.94kohm
40 - 5.83kohm
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