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