AOU45RLXFZ Installation Manual

En-18
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.
FEDC
MONITOR
ERROR
BA
POWER
MODE
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
FEDC
MONITOR
ERROR
BA
POWER
MODE
Blink
(High-speed)
10. 3. Error code display
• While the error is occurring, please briefl y press SW1. The error code is displayed.
FEDC
MONITOR
ERROR
BA
POWER
MODE
[A(10)] 1
Blink
(High-speed)
[A (10 times)]
Example) Coil error (Error cord = 9A.1)
F
1
2
3
4
5
6
7
8
9
A
C
F
J
P
U
EDC
For MONITOR
(A and B)
Display mode
LED on:
LED off:
Blink:
(0.5s Light on
/ 0.5s Light off)
Number
of blinking: ( )
A: 10 times
C: 11 times
F: 12 times
J: 13 times
P: 14 times
U: 15 times
(9 times)
Error code Error type
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
86.4 High pressure switch 1 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
WARNING
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
*Be sure the power supply is
disconnected on the breaker
is turned off when changing
the DIP switch.
*1: DIP switch
(SET1-2)
ON
1 2 3 4
SET1
9380545101-06_IM_3L.indb 189380545101-06_IM_3L.indb 18 2018/6/20 14:01:532018/6/20 14:01:53