Fujitsu Airstage J-II - Sub-Cool Heat EX. Gas Inlet Temp Sensor Error

Sub-cool Heat EX. Gas Inlet
Temp Sensor Error
OK
DC
CN142
B
L
A
C
K
B
L
A
C
K
BLA
CK
BLA
CK
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
B
L
A
C
K
B
L
A
C
K
Sub-cooling heat exchanger gas inlet
temperature thermistor
Sub-cooling heat exchanger gas inlet temperature thermistor short or
open detected
1. Connector connection defective, open
2. Thermistor defective
3. Main PCB defective
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 (CN142:5-6) voltage value = 5V
Remove the thermistor from Main PCB, check the voltage.
Sub-cooling heat exchanger gas inlet temperature sensor (CN142:5-6)
Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash,
Filter LED Continuous Flash.
Outdoor Unit : E. 82. 1
Error Code : 82
04-37
THERMISTOR (SC.INT.GAS) < TH 8 >
THERMISTOR
(SC.EXT.GAS)
THERMISTOR
(SC.EXT.LIQ)
Trouble shooting 27
Indicate or Display:
Detective Actuators:
Detective details:
OUTDOOR UNIT Error Method:
Forecast of Cause :