Panasonic S-50PY2E5A - Page 585

5-29
5
F04 Compressor Discharge Temperature Sensor (TD) Trouble
Error Detection Method
Error Diagnosis
It is judged an error based on the criteria listed below.
Open circuit or Short circuit
•
1.
2.
Sensor connector is connected to PC board properly.1-1
Sensor is correctly installed at holder side.1-2
1-2
Reconnect and check
Replace sensor
Correct and see what
happens.
1-3
Yes
No
1
Sensor
2
PC board
3
Operating
status
Yes
No
Resistance between connector pins on PC board is less than
1 k ohm
2-1
Replace PC board
2-2
Yes
No
Peripheral temperature of outdoor unit is over 46°C.3-1
Check noise.3-3
Correct
3-2
Yes
No
Tends to have insufficient refrigerant charge in the system.3-2
Adjust the amount
of refrigerant
3-3
Yes
No
Abnormal temperature exists even after replacing PC board.2-2
3-1
See what happens.
Yes
No
Abnormal temperature exists even after replacing sensor.1-3
2-1
See what happens.
Yes
No
SM830231-02Single欧州.indb29SM830231-02Single欧州.indb29 2014/09/1115:44:102014/09/1115:44:10