Toshiba MMU-AP0072WH1 Installation Manual page 31

SMMS 2-way Air Discharge Cassette 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 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 —
No. of indoor units in which sensor has been
E06 E06
normally received
— E07
Duplicated indoor unit addrsses
E08 E08
E09 —
E10 —
01:
E12 E12
02:
E15 E15
00:
E16 E16
01 ~: No. of connected units
E18 —
00:
E19 E19
02:
EN-59
Auxiliary code Operation
—
—
—
—
—
—
—
Indoor/Outdoor units communication
Outdoor/Outdoor units communication
—
Capacity over
—
No header
Two or more header units
Wireless remote controller
Sensor block display of receiving unit
Timer Ready Flash
30
ALT : Flashing is alternately when there are two flashing LED.
SIM : Simultaneous flashing when there are two flashing LED.
Check code name
Communication error between indoor unit and remote controller
(Detected at remote controller side)
Remote controller transmission error
Communication error between indoor unit and remote controller
(Detected at indoor unit side)
Communication circuit error between indoor/outdoor unit (Detected at
indoor unit side)
Decrease of No. of indoor units
Communication circuit error between indoor/outdoor unit (Detected at
outdoor unit side)
Duplicated indoor unit addresses
Duplicated master remote controllers
Communication error between indoor unit MCU
Automatic address start error
No indoor unit during automatic addressing
Capacity over / No. of connected indoor units
Communication error between header and follower units
Outdoor header units quantity error
Installation Manual
: Lighting, : Flashing, : Goes off
IPDU: Intelligent Power Drive Unit
Judging device
Remote controller
Remote controller
Indoor unit
Indoor unit
I/F
I/F
Indoor unit •
I/F
Remote controller
Indoor unit
I/F
I/F
I/F
Indoor unit
I/F
EN-60