12-4
Is the sensor resistance value #3-
#4
10kohm±3% at the room
temperature
of 25℃
Detachthe assembled sensor from the PBA
sensor connector and measure the sensor
resistance with ohmmeter(tester)
Sensor Replace
Sensorresistance value : 20℃ - 12.09kohm
35℃ - 6.94kohm
40℃ - 5.83kohm
Below 0.5V or Over 4.5V?
Connectthe sensor to PBA connector (4piin)
supply power and measure the voltage of #3-#4
in the connector
Exchange the indoor PBA
NO
YES
NO
YES
Micomerror or connector check
Exchange the indoor PBA
YES
Indoor Eva-in temp sensor
error
1.Checklist :
1) Is the indoor units temperature sensor connected correctly?
2) Is the sensor placed correctly?
3) Does the both terminal of sensor satisfy the resistance value in accordance with temperature?