Discharge Thermistor Error
OK
OK
DC
P1
THERMISTOR
(PIPE )
THERMISTOR
(DIS.PIPE.)
BLACK
BLACK
BLACK
BLACK
4 3 2 1
4 3 2 1
Discharge temperature thermistor
Discharge temperature thermistor short detected
Discharge thermistor open detected
1. Connector connection failure, open
2. Thermistor failure
3. Main PCB failure
Check Point 1 : Check the connector connection and cable open
Connector connection state check
Cable open check
Check Point 2 : Check the thermistor
Thermistor characteristics check (Disconnect the thermistor from the PCB and check.)
* For the thermistor characteristics, refer to the "Service Parts Information 8".
Check Point 3 : Check voltage of Main PCB (DC5.0V)
Main PCB P1 :3-4 voltage value =5V
Remove the thermistor from Main PCB, check the voltage.
If the voltage does not appear, replace Main PCB,
and execute the check operation again.
02-22
Trouble shooting 21
Detective Actuators:
Detective details:
OUTDOOR UNIT Error Method:
Forecast of Cause :
Indicate or Display:
Error code : 71
Outdoor unit : No indication
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