
9-13
CHECKING FLOW CHART BY FAILURE
Is the Connector
disconnected or loose?
1. Sensor connection
2. CN31 of Main PCB
No
Yes
Unplug the unit
Sensing Fail, F1, F2?
Yes
Reconnect
or adjust the
connection
1
Is the resistance of
thermistor normal?
Check:
Pins 4 and 5 of CN31 wiring in main PCB
Normal- approximately 1.09k
Ω
at 25˚C
Replace the
defective
Thermistor
2
CN31
Sensor
connection
CN31
No