Fujitsu AOYG45LAT8 - Suction Gas Thermistor Error

Suction Gas Thermistor Error
OK
DC
CN66
BLACK
BLA
C
K
1 2 3
1 2 3
Suction gas temperature thermistor
Suction gas temperature thermistor short or open detected
1. Connector connection defective, open
2. Thermistor failure3. Main PCB failure
OK
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 5".
Check Point 3 : Check voltage of Main PCB (DC5.0V)
Main PCB (CN66:1-3) voltage value = 5V
Remove the thermistor from Main PCB, check the voltage.
Suction gas temperature thermistor (CN66:1-3)
Indoor Unit : Operation LED 7 times Flash, Timer LED 5 Times Flash,
Economy LED Continuous Flash.
Outdoor Unit : E. 75. 1
Error Code : 75
If the voltage does not appear, replace Main PCB, and execute
the check operation.
THERMISTOR
(SUC. TEMP)
Trouble shooting 21
Indicate or Display:
Detective Actuators:
Detective details:
OUTDOOR UNIT Error Method:
Forecast of Cause :
02-37