Discharge Thermistor Error
OK
OK
DC
P1
THERMISTOR
(PIPE )
THERMISTOR
(DIS.PIPE.)
BLACK
BLACK
BLACK
BLACK
4321
4321
Discharge temperature thermistor
Discharge temperature thermistor short or 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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