Fujitsu AO G18KATA Series Service Instruction

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.
02-23
Trouble shooting 22
Detective Actuators: Detective details:
OUTDOOR UNIT Error Method:
Forecast of Cause :
Indicate or Display:
Error code : 71 Outdoor unit : No indication

Fujitsu AO G18KATA Series Specifications

General

Brand	Fujitsu
Model	AO G18KATA Series
Category	Air Conditioner
Language	English