Panasonic CS-PS9JKT Service Manual page 58

14.4.15 F11 (Indoor Pipe Temperature Sensor Abnormality)
Malfunction Decision Conditions
•
When cooling operation, when indoor pipe temperature or indoor heat exchanger temperature sensor is above
45°C
Malfunction Caused
•
Faulty connector connection.
•
Faulty indoor pipe temperature sensor.
•
Faulty indoor main PCB.
Troubleshooting
When abnormality indication starts again
Check the indoor pipe temperature sensor connection.
Does it cable connection loose or connector broken?
Check the indoor pipe temperature characteristic.
Does it conform to specification?
•
Replace the indoor main PCB
Sensor (Thermistor)
Characteristics
70
1 Pipe temp. Sensor
60
2 Intake Air Temp. Sensor
50
1
40
2
30
20
10
0
-10 0 10 20
Temperature (ºC)
NO
YES
30 40 50
For safety reason and to prevent
component breakdown, always switch
off the power before remove and
connect the component.
YES
•
Correct loose or broken cable / connector
NO
•
Replace the indoor pipe temperature
sensor
The problem still occur after replacing the
sensor.
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