Installation manual

High Wall Type
Installation Manual
–27–
 Check codes and parts to be checked
Check method
On the remote control (Wired remote control, Central control remote control) and the interface P.C. board
of the outdoor unit (I/F), a check display LCD (Remote control) or 7-segment display (on the outdoor
interface P.C. board) to display the operation is provided. Therefore the operation status can be known.
With 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.
• To check from indoor remote control: See “Wired remote control display” in the list.
• To check from outdoor unit: See “Outdoor 7-segment display” in the list.
• To check from indoor unit with a wireless remote control: See “Sensor block display of receiving unit” in
the list.
IPDU : Intelligent Power Drive Unit
: Lighting, : Flashing, : Goes off
ALT. : Flashing is alternately when there are two flashing LED.
SIM : Simultaneous flashing when there are two flashing LED.
Check code Wireless remote control
Check code name
Judging
device
Wired
remote
control
display
Outdoor 7-segment display
Sensor block display of
receiving unit
Auxiliary code
Operation Timer Ready Flash
E01 — —
Communication error between indoor and
remote control
(Detected at remote control side)
Remote control
E02 — — Remote control transmission error Remote control
E03 — —
Communication error between indoor and
remote control (Detected at indoor side)
Indoor
E04 — —
Communication circuit error between
indoor/outdoor (Detected at indoor side)
Indoor
E06 E06
No. of indoor units in which
sensor has been normally
received
Decrease of No. of indoor units I/F
—E07 —
Communication circuit error between
indoor/outdoor (Detected at outdoor side)
I/F
E08 E08 Duplicated indoor addresses Duplicated indoor addresses Indoor / I/F
E09 — — Duplicated header remote controls Remote control
E10 — —
Communication error between indoor
MCU
Indoor
E12 E12
01: Indoor/Outdoor
communication
02: Communication between
outdoor units
Automatic address start error I/F
E15 E15 —
Indoor is nothing during automatic
addressing
I/F
E16 E16
00: Capacity over
01 ~:No. of connected units
Capacity over / No. of connected indoor
units
I/F
E18 — —
Communication error between indoor
units
Indoor
E19 E19
00: Header is nothing
02: Two or more header units
Outdoor header units quantity error I/F
E20 E20
01: Outdoor of other line
connected
02: Indoor of other line
connected
Other line connected during automatic
address
I/F
E23 E23 —
Sending error in communication between
outdoor units
I/F
E25 E25 — Duplicated follower outdoor addresses I/F
E26 E26
No. of outdoor units which
received signal normally
Decrease of No. of connected outdoor
units
I/F
27-EN