Fujitsu AB*30LBAG series, Инструкция по эксплуатации

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Trouble shooting 6
INDOOR UNIT
OUTDOOR UNIT Error Method:
Indicate or Display:
Outdoor Unit : LED 4 times blink
Detective Actuators: Detective details:
Forecast of Cause :
Check Point 2 :
Check Point 3 :
OK OK
OK OK
TH
E
R
M
IS
TO
R
(D
IS
C
H
A
R
G
E
)
TH
E
R
M
IS
TO
R
(P
IP
E
)
TH
ER
M
IS
TO
R
(O
U
TD
O
O
R
)
TH
E
R
M
IS
TO
R
(C
O
M
P
R
E
S
S
O
R
)
TH
E
R
M
IS
TO
R
(H
E
A
T
S
IN
K
)
B
R
O
W
N
B
LA
C
K
B
LA
C
K
B
LU
E
B
R
O
W
N
CN21 CN22 CN23 CN26 CN25
1 2 1 2 1 2 1 2 1 2
30°C
12.6 20.7 26.9 35.2 46.6 62.3 115 Resistance Value (k )
20°C
16.1
15°C 10°C 5°C 0°C -20°C -10°C -5°C
Temperature
3.45 2.36 1.65 Resistance Value (k )
50°C 60°C 70°C
5.18 7.97
40°C
Temperature
Outdoor Temperature Sensor Error
Outdoor Unit Main PCB Circuit
Outdoor Temperature Thermistor
When Outdoor Temperature Thermistor open or short-circuit is
detected at power ON or while running the compressor.
1. Connector connection failure 2.Thermistor failure 3. Main PCB failure
Check Point 1 : Check connection of Connector
Check if connector is removed.
Check erroneous connection.
Check if thermistor cable is open.
>>Upon correcting the removed connector or mis-wiring, reset the power.
Check Point 2 : Remove connector and check Thermistor resistance value
Thermistor Characteristics (Approx. value)
If Thermistor is either open or shorted, replace it and reset the power.
Check Point 3 : Check voltage of Main PCB (DC5.0V)
Make sure circuit diagram of outdoor unit and check terminal voltage at Thermistor (DC5.0V)
If the voltage does not appear, replace Main PCB.
07-07
Indoor Unit : Operation LED: Blink, Timer LED: 4 times blink,
Vertical swing LED: OFF