En-18
9.4. Checklist
Check description
Check method
Criteria
1
High and low pressure values
are normal.
Check it with a pres-
sure gauge.
Cooling: low pressure ap-
prox. 0.8 MPa
Heating: high pressure
approx. 3.0 MPa
2
Drain water is discharged
smoothly through the drain
hose.
Check it by pouring
water.
―
3
Indoor and outdoor unit fans
are operating.
Check them visually.
―
4
Compressor operates after the
indoor unit operates.
Check the operating
sound.
―
5
Difference between inlet and
outlet temperatures is normal.
Measure the inlet and
outlet temperatures.
Temperature difference
10 degrees
6
Error is not displayed.
Check the 7 segment
display.
Error blinking or no error
code display
10. LED STATUS
You can determine the operating status by the lighting up and blinking of the LED display.
Check the status using the table below.
10.1. Normal operation codes
Mode
CODE
DESCRIPTION
Operation
C
L
Cooling
H
t
Heating
o
r
During oil recovery operation
d
F During defrosting operation
P
C During power saving operation
L
n During low noise operation
10.2. Error codes
Mode
CODE
DESCRIPTION
Communica-
tion error
E
1
4.
2 Outdoor unit network communication 2 error
E
1
4.
5 The number of indoor unit shortage
Function setting
error
E
2
2.
1 Indoor unit capacity error
E
2
4.
2 Connection unit number error (Indoor unit)
E
2
6.
1 Indoor unit duplicate address error
E
2
8.
1 Auto address setting error
E
2
8.
4 Signal ampli
fi
er auto address error
Indoor unit
actuator error
E
5
U.
1 Indoor unit miscellaneous error
Outdoor unit
PCB/Electrical
component/
Switch error
E
6
2.
3 Outdoor unit EEPROM access error
E
6
2.
6 Outdoor unit inverters communication error
E
6
2.
8 Outdoor unit EEPROM data corruption error
E
6
3.
1 Outdoor unit inverter error
E
6
7.
2
Outdoor unit inverter PCB power short interruption
error
E
6
8.
2
Outdoor unit rush current limiting resister temp. rise
error (protective operation)
E
6
9.
1
Outdoor unit transmission PCB parallel communica-
tion error
Outdoor unit
sensor error
E
7
1.
1 Outdoor unit discharge temp. thermistor 1 error
E
7
2.
1 Outdoor unit compressor temp. thermistor 1 error
E
7
3.
3 Outdoor unit heat ex. liquid temp. thermistor error
E
7
4.
1 Outside air temp. thermistor error
E
7
5.
1 Outdoor unit suction gas temp. thermistor error
E
7
7.
1 Outdoor unit heat sink temp. thermistor error
E
8
2.
1
Outdoor unit sub-cool heat ex. gas inlet temp. therm-
istor error
E
8
2.
2
Outdoor unit sub-cool heat ex. gas outlet temp.
thermistor error
E
8
3.
2 Outdoor unit liquid pipe temp. thermistor 2 error
E
8
4.
1
Outdoor unit current sensor 1 error
(permanent stop)
E
8
6.
1 Outdoor unit discharge pressure sensor error
E
8
6.
3 Outdoor unit suction pressure sensor error
E
8
6.
4 Outdoor unit high pressure switch 1 error
Outdoor unit
actuator error
E
9
3.
1 Outdoor unit inverter compressor start up error
E
9
4.
1 Outdoor unit trip detection
E
9
5.
5
Outdoor unit compressor motor loss of synchroniza-
tion
E
9
7.
1 Outdoor unit fan motor 1 lock error
E
9
7.
4 Outdoor unit fan motor 1 undervoltage error
E
9
7.
5
Outdoor unit fan motor 1 temperature error
(protective action)
E
9
8.
1 Outdoor unit fan motor 2 lock error
E
9
8.
5
Outdoor unit fan motor 2 temperature error
(protective action)
E
9
A.
1 Outdoor unit coil 1 (expansion valve 1) error
E
9
A.
2 Outdoor unit coil 2 (expansion valve 2) error
Refrigerant
system error
E
A
1.
1
Outdoor unit discharge temperature 1 error (perma-
nent stop)
E
A
3.
1 Outdoor unit compressor 1 temperature error
E
A
4.
1 Outdoor unit high pressure error
E
A
4.
2 Outdoor unit high pressure protective action 1
E
A
5.
1 Outdoor unit low pressure error
E
A
C.
4 Outdoor unit heat sink temperature error
7 segment LED indicator:
,,
,
,
,
,
,
,
,
,
,
t:
L:
7:
H:
J:
6:
A:
C:
E:
F:
,
,
,
d:
n:
o:
r:
,
,
,
,
,
9:
P:
U:
S:
8:
,
,
,
,
5:
3:
4:
1:
2:
,
0:
11. INFORMATION
Main contents of label
Item
Detail
1. Model name
Model name
2. Serial number
Serial number
3. Electric characteristics
Phase, rated voltage, and frequency
4. Weight
Product weight
5. Capacity
Cooling/heating capacity under cooling/heating
condition (refer to item 15)
6. Current
Electric current during cooling/heating operation
under cooling/heating condition (refer to item 15)
7. Input power
Input during cooling/heating operation under cool-
ing/heating condition (refer to item 15)
8. Max. Current
Maximum electric current (temperature condition is
max. cooling condition [refer to item 16])
9. Air circulation
Air circulation
10. Noise level
Noise level
11. Refrigerant
Refrigerant type and initial charging amount
12. Max. pressure (HP/LP)
Means pressure of High Pressure side/Low Pres-
sure side
13. Protection
Protection level against dust and water
14. Working temperature
Working temperature
15. Condition
of
cooling/heating
Dry-bulb temperature and wet-bulb temperature
under standard cooling/heating condition
16. Condition of max. cooling
Dry-bulb temperature and wet-bulb temperature at
maximum electric current and input
17. Manufacture year
Manufacture year
18. Origin
Origin country
19. Manufacturer
Manufacturer
FUJITSU GENERAL LIMITED
Address: 3-3-17, Suenaga, Takatsu-ku, Kawasaki
213-8502, Japan
9380545170_IM.indb 18
9380545170_IM.indb 18
5/19/2016 2:23:18 PM
5/19/2016 2:23:18 PM
