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Check method
On the wired remote controller, central control remote controller and the interface P.C. Board of the outdoor unit (I/F), a check display LCD (Remote controller) or 7-segment display (on the outdoor interface P.C. Board) to display the operation
is provided. Therefore the operation status can be known. Using this self-diagnosis function, a trouble or position with error of the air conditioner can be found as shown in the table below.
Check code list
The following list shows each check code. Find the check contents from the list according to part to be checked.
In case of check from indoor remote controller: See "Wired remote controller display" in the list.
In case of check from outdoor unit: See "Outdoor unit 7-segment display" in the list.
In case of check from indoor unit with a wireless remote controller: See "Sensor block display of receiving unit" in the list.
Check code
Outdoor unit 7-segment display
Wired remote
controller display
E01
–
E02
–
E03
–
E04
–
E06
E06
No. of indoor units in which sensor has been normally received
–
E07
E08
E08
Duplicated indoor unit addresses
E09
–
E10
–
E11
–
01: Indoor/Outdoor units communication
E12
E12
02: Outdoor/Outdoor units communication
E15
E15
00: Capacity over
E16
E16
01: No. of connected units
E17
–
E18
–
00: Header is not detected
E19
E19
02: Two or more header units
01: Outdoor unit of other line connected
E20
E20
02: Indoor unit of other line connected
E23
E23
E25
E25
E26
E26
No. of outdoor units which received signal normally
E28
E28
Detected outdoor unit number
E31
E31
*1 Inverter quantity information
F01
–
F02
–
F03
–
F04
F04
F05
F05
01: TE1 sensor
F06
F06
02: TE2 sensor
03: TE3 sensor
51-EN
Sensor block display of receiving unit
Auxiliary code
Operation
–
–
–
–
[
[
–
[
–
–
–
–
[
[
–
–
[
[
–
[
–
[
[
[
[
–
–
–
–
–
Wireless remote controller
Timer
Ready
Flash
Communication trouble between indoor unit and remote controller
[
[
(Detected at remote controller side)
Remote controller transmission trouble
[
[
Communication trouble between indoor unit and remote controller
[
[
(Detected at indoor unit side)
Communication circuit trouble between indoor / outdoor unit
[
(Detected at indoor unit side)
Decrease of No. of indoor units
[
Communication circuit trouble between indoor / outdoor unit
[
(Detected at outdoor unit side)
Duplicated indoor unit addresses
[
[
Duplicated master remote controllers
[
[
Communication trouble between indoor unit MCU
[
[
Communication trouble between Application control kit and indoor unit
[
[
Automatic address start trouble
[
[
No indoor unit during automatic addressing
[
Capacity over / No. of connected indoor units
[
Communication trouble between indoor unit and Flow Selector unit
[
[
Communication trouble between header and follower units Indoor unit
[
[
Outdoor header units quantity trouble
[
Other line connected during automatic address
[
Sending trouble in communication between outdoor units
[
Trouble in number of heat storage units (trouble with reception)
Duplicated follower outdoor addresses
[
Decrease of No. of connected outdoor units
[
Follower outdoor unit trouble
[
Inverter communication trouble
[
ALT
Indoor unit TCJ sensor trouble
[
ALT
Indoor unit TC2 sensor trouble
[
ALT
Indoor unit TC1 sensor trouble
[
ALT
TD1 sensor trouble
\
ALT
TD2 sensor trouble
\
ALT
TE1,TE2 or TE3 sensor trouble
\
– 26 –
: Lighting,
: Flashing,
\
ALT: Flashing is alternately when there are two flashing LED.
SIM: Simultaneous flashing when there are two flashing LED.
Inverter: Compressor / Fan inverter P.C. Board
I/F: Interface P.C. Board
Check code name
Judging device
Remote controller
Remote controller
Indoor unit • I/F
Remote controller
Application control kit
: Goes off
[
Indoor unit
Indoor unit
I/F
I/F
Indoor unit
Indoor unit
I/F
I/F
I/F
Indoor unit
Indoor unit
I/F
I/F
I/F
I/F
I/F
I/F
EN
I/F
Indoor unit
Indoor unit
FR
Indoor unit
I/F
I/F
ES
I/F
52-EN
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