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SMMS High-Wall Type
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 AI-NET central control remote controller: See "AI-NET central control 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
Wired
Outdoor unit 7-
remote
segment display
controller
Auxiliary code
display
E01
—
E02
—
E03
—
E04
—
No. of indoor
units in which
E06
E06
sensor has been
normally
received
—
E07
Duplicated
E08
E08
indoor unit
addresses
ALT: Flashing is alternately when there are two flashing LED.
SIM: Simultaneous flashing when there are two flashing LED.
Wireless remote controller
AI-NET
central
control
Operation
display
—
—
—
—
—
97
—
04
04
—
—
96
: Lighting,
IPDU: Intelligent Power Drive Unit
Sensor block display of
receiving unit
Timer
Ready
Flash
100
FILE NO. SVM-16045
Installation Manual
: Flashing,
: Goes off
AI-NET: Artificial Intelligence
Check code
Judging
name
device
Communication
error between
indoor unit and
Remote
remote controller
controller
(Detected at
remote controller
side)
Remote controller
Remote
transmission error
controller
Communication
error between
indoor unit and
Indoor unit
remote controller
(Detected at
indoor unit side)
Communication
circuit error
between indoor /
Indoor unit
outdoor unit
(Detected at
indoor unit side)
Decrease of No. of
I/F
indoor units
Communication
circuit error
between indoor /
I/F
outdoor unit
(Detected at
outdoor unit side)
Duplicated indoor
Indoor unit •
unit addresses
I/F
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Troubleshooting
