Table of Contents
Advertisement
10-2-4 Outdoor 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 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"in the
connector
Below 0.5Vdc or Over 4.5Vdc?
NO
Micom error or connector check
YES
Exchange the Outdoor PBA
7-SEG DISPLAY
LED3
◎
E221
◎
LED OFF
NO
NO
YES
96
DESCRIPTION
Outdoor temperature sensor error
Outdoor temperature sensor error
Model
ALL
CN251
Reconnect the sensor connector.
Sensor Replace
Sensor resistance value : 20 - 12.09 kohm
30 - 8.31 kohm
35 - 6.94 kohm
40 - 5.83 kohm
Exchange the Outdoor PBA
"A"
"B"
CN251 #1-#2
- Quick Links:
- Installing the Air Conditioner
- Indoor Unit
Hide quick links:
Advertisement
Table of Contents
