Error Code; In The Event Of An Error; Error Location Display; Error Code Display - Fujitsu AOU45RLXFZ Installation Manual

10. ERROR CODE

• If an error occurs, the LED will light up to display the error location and the error code.

10. 1. In the event of an error

• The error LED fl ashes quickly.
POWER ERROR
MODE
A B
blink
(High-speed)

10. 2. Error location display

• LEDs A to F of MONITOR light up and display the error location. In the case of an
overall error, LEDs A to F of MONITOR do not light up.
Example) Coil error in indoor unit B
POWER ERROR
MODE
A B
blink
(High-speed)

10. 3. Error code display

• While the error is occurring, please briefl y press SW1. The error code is displayed.
Example) Coil error (Error cord = 9A.1)
POWER ERROR
MODE
A B
[A(10)]
Blink
(High-speed) (9-blink)
Display mode
LED on:
LED off:
Blink:
(0.5s Light on
/ 0.5s Light off)
Number
of blinking: ( )
For MONITOR
(A and B)
A: 10-Blink
C: 11-Blink
F: 12-Blink
J: 13-Blink
P: 14-Blink
U: 15-Blink
MONITOR
C D E F
MONITOR
C D E F
MONITOR
C D E F
1
C D E F
1
2
3
4
5
6
7
8
9
A
C
F
J
P
U
Error code
11.3 Serial communication error
11.4 Serial communication error during operation
16.5 Communication error between controller and outdoor unit
22.1 Indoor unit capacity error
5U.1 Indoor unit error
62.1 PCB model information error
62.3 EEPROM access error
62.8 EEPROM data corruption error
63.1 Inverter error
65.3 IPM error (Trip terminal L error)
71.1 Discharge temp. sensor error
72.1 Compressor temp. sensor error
73.2 Heat ex. middle temp. sensor error
73.3 Heat ex. liquid temp. sensor error
74.1 Outdoor temp. sensor error
75.1 Suction gas temp. sensor error
76.1
Valve sensor error
76.2
77.1 Heat sink temp. sensor error
84.1 Current sensor 1 error (stoppage permanently)
86.1 Discharge pressure sensor error
94.1 Trip detection
95.1 Compressor motor control error (stoppage permanently)
97.3 Fan motor 1 error (Duty error)
98.3 Fan motor 2 error (Duty error)
99.1 4-way valve error
9A.1 Coil 1 (expansion valve 1) error
A1.1 Discharge temperature 1 error (stoppage permanently)
A3.1 Compressor 1 temperature error

11. PUMP DOWN

During the pump down operation, make sure that compressor is off before you remove
the refrigerant piping. Do not remove the connection pipe while the compressor is in
operation with valve open. This may cause abnormal pressure in the refrigeration cycle
that leads to breakage and even injury.
PUMP DOWN OPERATION
When moving or discarding the air conditioner, in order to consider the environment and
avoid the discharge of refrigerant to the atmosphere, please pump down according to the
following procedure.
(1) Connect the pressure gauge to the charging port.
(2) Change the DIP switch on the board (SET1-2) to ON*1
SET1
ON
*Be sure the power supply is
1 2 3 4
*1: DIP switch
(SET1-2)
Error type
WARNING
disconnected on the breaker
is turned off when changing
the DIP switch.
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