Fujitsu Airstage J-II, Service Manual

Page: 100 / 209

Sub-cool Heat EX. Gas Inlet
Temp Sensor Error
OK
DC
CN142
B
LA
C
K
B
LA
C
K
B
LA
C
K
B
LA
C
K
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
B
LA
C
K
B
LA
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
TH
ER
M
IS
TO
R
(S
C
.IN
T.
G
A
S)
<
TH
8
>
TH
E
R
M
IS
TO
R
(S
C
.E
X
T.
G
A
S
)
TH
E
R
M
IS
TO
R
(S
C
.E
X
T.
LI
Q
)
Trouble shooting 27
Indicate or Display:
Detective Actuators:
Detective details:
OUTDOOR UNIT Error Method:
Forecast of Cause :