Fujitsu AIRSTAGE V-II, Service Manual

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Discharge Temp Sensor 1 Error
OK
OK
DC
CN141
TH
E
R
M
IS
TO
R
(C
O
M
P
S
H
E
LL
1)
TH
E
R
M
IS
TO
R
(D
IS
.T
E
M
P
.2
)
TH
ER
M
IS
TO
R
(D
IS
.T
EM
P.
1)
B
LA
C
K
B
LA
C
K
B
LA
C
K
B
LA
C
K
B
LA
C
K
B
LA
C
K
1 2 3 4 5 6
1 2 3 4 5 6
Discharge temperature thermistor 1
Discharge temperature thermistor 1 short detected
Discharge 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
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 (CN141:1-2) voltage value = 5V
Remove the thermistor from Main PCB, check the voltage.
If the voltage does not appear, replace Main PCB and set up orignal address.
(Refer to 06-03 page Main PCB removal.)
Discharge temperature sensor 1 (CN141:1-2)
Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash,
Filter LED Continuous Flash.
Outdoor Unit : E. 71. 1
Error Code : 71
04-34
Trouble shooting 26 Indicate or Display:
Detective Actuators: Detective details:
OUTDOOR UNIT Error Method:
Forecast of Cause :