Fujitsu AIRSTAGE V-II - Compressor Temp Sensor 1 Error

Compressor Temp Sensor 1 Error
DC
CN141
THERMISTOR (COMP SHELL1)
THERMISTOR (DIS.TEMP.2)
THERMISTOR (DIS.TEMP.1)
BLA
C
K
BLA
C
K
BLACK BLACK BLACK BLACK
1 2 3 4 5 6
1 2 3 4 5 6
Compressor temperature thermistor 1
Compressor temperature thermistor 1 short detected
Compressor thermistor 1 open detected after compressor 1 operated
continuously for 5 minutes or more
1. Connector connection defective, open
2. Thermistor defective
3. Main PCB defective
OK
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 22".
Check Point 3 : Check voltage of Main PCB (DC5.0V)
Main PCB (CN141:5-6) voltage value = 5V
Remove the thermistor from Main PCB, check the voltage.
Compressor temperature sensor 1 (CN141:5-6)
Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash,
Filter LED Continuous Flash.
Outdoor Unit : E. 72. 1
Error Code : 72
If the voltage does not appear, replace Main PCB and set up orignal address.
( Refer to 06-03 page Main PCB removal.)
04-36
Trouble shooting 28
Indicate or Display:
Detective Actuators:
Detective details:
OUTDOOR UNIT Error Method:
Forecast of Cause :