Fujitsu ajy144lalh коды ошибок

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9. 3.

Check description

High and low pressure

1

values are normal.

Drain water is dis-

2

charged smoothly

through the drain hose.

Indoor and outdoor unit

3

fans are operating.

Compressor operates after

4

the indoor unit operates.

Difference between inlet

5

and outlet temperatures

is normal.

6

Error is not displayed

10.

LED Status

You can determine the operating status by the lighting up and blinking of the 7 seg-

ment LED indicator.

Check the status using the table below.

10. 1.

Normal operation mode

Mode

Code

C L

Cooling

H

t

Heating

o

r During oil recovery operation

Operation

d

F During defrosting operation

P C During peak cut operation

L

n During low noise operation

S n During setting of snowfall mode

10. 2.

Error codes

Mode

Code

E 1 3. 1 Communication error between outdoor units

E 1 4. 1 Outdoor unit network communication 1 error

Communication error

E 1 4. 2 Outdoor unit network communication 2 error

E 1 4. 5 The number of indoor unit shortage

E 2 8. 1 Auto address setting error

Function setting error

E 2 8. 4 Signal amplifi er auto address error

Indoor unit actuator error E 5 U. 1 Indoor unit miscellaneous 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

E 6 3. 1 Outdoor unit inverter error

Outdoor unit PCB/Elec-

trical component/ Switch

E 6 7. 2

error

E 6 8. 1 Outdoor unit magnetic relay error

E 6 8. 2

E 6 9. 1

E 7 1. 1 Outdoor unit discharge temp. thermistor 1 error

E 7 1. 2 Outdoor unit discharge temp. thermistor 2 error

E 7 2. 1 Outdoor unit compressor temp. thermistor 1 error

E 7 2. 2 Outdoor unit compressor temp. thermistor 2 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 sensor

E 8 2. 1

error

E 8 2. 2

E 8 3. 1 Outdoor unit liquid pipe temp. thermistor 1 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

E 8 6. 5 Outdoor unit high pressure switch 2 error

En-23

Check method

Criteria

Cooling: low pressure ap-

Check it with a

prox. 0.8 MPa

pressure gauge.

Heating: high pressure ap-

prox. 3.0 MPa

Check it by pour-

―

ing water.

Check them visu-

―

ally.

Check the operat-

―

ing sound.

Measure the inlet

Temperature difference 10

and outlet temper-

degrees

atures.

Check the 7

Error blinking or no error

segment LED

code display

indicator

Description

Description

Outdoor unit inverter PCB power short interruption

error

Outdoor unit rush current limiting resister temp. rise

error (protective operation)

Outdoor unit transmission PCB parallel

communication error

Outdoor unit sub-cool heat ex. gas inlet temp. therm-

istor error

Outdoor unit sub-cool heat ex. gas outlet temp.

thermistor error

E 9 2. 1 Outdoor unit compressor 2 error

E 9 2. 2 Outdoor unit compressor 2 current value error

E 9 3. 1 Outdoor unit inverter compressor start up error

E 9 4. 1 Outdoor unit trip detection

Outdoor unit actuator

E 9 5. 5 Outdoor unit compressor motor loss of synchronization

error

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

E 9 U. 2 Outdoor slave unit error

E A 1. 1

E A 2. 1

E A 3. 1 Outdoor unit compressor 1 temperature error

E A 3. 2 Outdoor unit compressor 2 temperature error

Refrigerant system error

E A 4. 1 Outdoor unit high pressure error

E A 4. 2 Outdoor unit high pressure protective action 1

E A 4. 3 Outdoor unit high pressure protective action 2

E A 5. 1 Outdoor unit low pressure error

E A C. 4 Outdoor unit heat sink temperature error

7 segment LED indicator:

Outdoor unit fan motor 1 temperature error (protective

action)

Outdoor unit discharge temperature 1 error (perma-

nent stop)

Outdoor unit discharge temperature 2 error (perma-

nent stop)