Toshiba MMD-AP0074SPH-E Installation Manual page 23

SMMS Slim Duct 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
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
E08 E08 Duplicated indoor unit addresses
E09 —
E10 —
01:Indoor / Outdoor units communication
E12 E12
02:Outdoor / Outdoor units communication
E15 E15
00:Capacity over
E16 E16
01 ~:No. of connected units
E18 —
00:No header
E19 E19
02:Two or more header units
01:Outdoor unit of other line connected
E20 E20
02:Indoor unit of other line connected
02:No header unit
E21 E21
00:Multiple number of header units
E22 E22
E23 E23
E25 E25
No. of outdoor units which received signal
E26 E26
normally
E28 E28 Detected outdoor unit number
E31 E31 Number of IPDU (*1)
43-EN
Installation Manual
AI-NET central
control display
Auxiliary code Operation
— —
— —
— 97
— 04
04
— —
96
— 99
— CF
42
— 42
89
— 97, 99
96
42
42
— 42
— 15
— 15
15
d2
CF
SMMS Slim Duct Type
Wireless remote controller
Sensor block display of receiving unit
Timer Ready Flash
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 MC
Automatic address start error
No indoor unit during automatic addressing
Capacity over / No. of connected indoor units
Communication error between header and follower units Indoor unit
Outdoor header units quantity error
Other line connected during automatic address
Error in number of heat storage master units
Reduction in number of heat storage units
Sending error in communication between outdoor units
Error in number of heat storage units (trouble with reception)
Duplicated follower outdoor addresses
Decrease of No. of connected outdoor units
Follower outdoor unit error
IPDU communication error
– 22 –
Installation Manual
: Lighting, : Flashing,
AI-NET: Artificial Intelligence
IPDU: Intelligent Power Drive Unit
ALT: Flashing is alternately when there are two flashing LED.
SIM: Simultaneous flashing when there are two flashing LED.
Check code name Judging device
Remote controller
Remote controller
Remote controller
: Goes off
Indoor unit
Indoor unit
I/F
I/F
Indoor unit • I/F
Indoor unit
I/F
I/F
I/F
Indoor unit
I/F
I/F
I/F
I/F
I/F
I/F
I/F
I/F EN
I/F
44-EN