Check Code List - Toshiba MML-AP0071BH Installation Manual

9
TROUBLESHOOTING
Check method
On the remote controller (Main 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 "Main remote controller display" in the list.
• In case of check from outdoor unit: See "Outdoor 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 wireless remote controller: See "Sensor block display of receiving unit" in the list.
Check code
Main
Outdoor 7-segment display
remote
controller
display
Auxiliary code
E01 —
E02 —
E03 —
E04 —
No. of indoor units in which
E06 E06 sensor has been normally
received
— E07
E08 E08 Duplicated indoor addresses
E09 —
E10 —
01: Indoor/Outdoor
communication
E12 E12
02: Communication between
outdoor units
E15 E15
00: Capacity over
E16 E16
~
01 :No. of connected units
E18 —
00: Header is nothing
E19 E19
02: Two or more header units
01: Outdoor of other line
connected
E20 E20
02: Indoor of other line
connected
E23 E23
E25 E25
No. of outdoor units which
E26 E26
received signal normally
E28 E28 Detected outdoor unit number
01: IPDU1 error
02: IPDU2 error
03: IPDU1, 2 error
E31 E31 04: Fan IPDU error
05: IPDU + Fan IPDU error
06: IPDU2 + Fan IPDU error
07: All IPDU error
Terminology
AI-NET central
control display
— —
— —
— 97
— 04
04
— —
96
— 99
— CF
42
— 42
89
— 97, 99
96
42
— 15
— 15
15
d2
CF
AI-NET : Artificial Intelligence.
IPDU : Intelligent Power Drive Unit
¡
¤
: Lighting, : Flashing,
ALT. : Flashing is alternately when there are two flashing LED.
SIM : Simultaneous flashing when there are two flashing LED.
Wireless remote controller
Sensor block display
of receiving unit
Operation Timer Ready Flash
Communication error between indoor and
l l
¤
remote controller
(Detected at remote controller side)
l l
¤
Remote controller transmission error
l l Communication error between indoor and
¤
remote controller (Detected at indoor side)
l l
Communication circuit error between indoor/
¤
outdoor (Detected at indoor side)
l l
¤
Decrease of No. of indoor units
l l
Communication circuit error between indoor/
¤
outdoor (Detected at outdoor side)
l l
¤
Duplicated indoor addresses
l l
¤
Duplicated main remote controllers
l l
¤
Communication error between indoor MCU
l l
¤
Automatic address start error
l l
¤
Indoor is nothing during automatic addressing
l l
¤
Capacity over / No. of connected indoor units
l l
¤
Communication error between indoor units
l l
¤
Outdoor header units quantity error
l l Other line connected during automatic
¤
address
l l
Sending error in communication between
¤
outdoor units
l l
¤
Duplicated follower outdoor addresses
l l
¤
Decrease of No. of connected outdoor units
l l
¤
Follower outdoor unit error
l l
¤
IPDU communication error
17
l
: Goes off
Check code name Judging device
Remote controller
Remote controller
Indoor
Indoor
I/F
I/F
Indoor / I/F
Remote controller
Indoor
I/F
I/F
I/F
Indoor
I/F
I/F
I/F
I/F
I/F
I/F
I/F