Toshiba MMK-AP0073HP1-E1 Service Manual page 76

7-2. Check Method
On the remote controller (Main remote controller, Central control remote controller) and the interface P .C. board of
the outdoor unit, 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 trouble of the air conditioner can be found as shown in the table below.
7-2-1. 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 TCC-LINK central control remote controller:
See "TCC-LINK central control display" in the list.
• However connection with AI-NET central control is disabled for the wall type (3 series).
• 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 Sub code
E01 —
E02 —
E03 —
E04 —
No. of indoor units in which sensor
E06 E06
has been normally received
— E07
E08 E08 Duplicated indoor addresses
E09 —
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: No header unit
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
E26 No. of outdoor units which
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
AI-NET
central control
display
— —
— —
— 97
— 04
04
— —
96
— 99
42
— 42
89
— 97, 99
96
42
— 15
— 15
15
d2
CF
IPDU: Intelligent Power Drive Unit
: Flashing, l : Goes off
¤
¡ : Lighting,
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
Ready Timer Operation
Flash
l l Communication error between indoor and remote
¤
controller (Detected at remote controller side)
l l
¤
Sending error of remote controller
l l Communication error between indoor and remote
¤
controller (Detected at indoor side)
l l Communication circuit error between indoor and
¤
outdoor (Detected at indoor side)
l l
¤
Decrease of No. of indoor units
l l Communication circuit error of indoor and outdoor
¤
(Detected at outdoor side)
l l ¤
Duplicated indoor addresses
l l
¤
Duplicated master remote controllers
l l ¤
Automatic address start error
l l
¤
No indoor automatic address
l l
¤
No. of connected indoor units / Capacity over
l l
¤ Communication error between indoor header and
follower 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 error
¤ l l
IPDU communication error
76
FILE NO. SVM-16046
Check code name
Judging
device
Remote
controller
Remote
controller
Indoor
Indoor
I/F
I/F
Indoor/I/F
Remote
controller
I/F
I/F
I/F
Indoor
I/F
I/F
I/F
I/F
I/F
I/F
I/F