Toshiba MMY-MAP0804HT8(Z)(ZG)-E Service Manual page 187

Check code
Outdoor 7-segment display
Main
remote
Check
Sub-code
controller
code
L03 – –
L04 L04 –
L05 – –
No. of priority
indoor units
L06 L06
L07 – –
L08 L08 –
L09 – –
L10 L10 –
L20 – –
L28 L28 –
Location
AI-NET central
of Description
control
detection
remote
controller
Indoor Duplicated
unit indoor header
unit
96
I/F Duplicated
outdoor line
96
address
I/F Duplicated
priority indoor
unit (as
96
displayed on
priority indoor
unit)
I/F Duplicated
priority indoor
unit (as
96 displayed on
indoor unit other
than priority
indoor unit)
Indoor Connection of
unit group control
99 cable to stand-
alone indoor
unit
Indoor Indoor group /
unit addresses not
set
99
Indoor Indoor capacity
46 unit not set
I/F Outdoor
capacity not set
88
AI-NET Duplicated
Indoor central control
98 unit address
I/F Too many
outdoor units
connected
46
Error detection
System status
condition(s)
Stop of There is more than one
corresponding header unit in group.
unit
All stop There is duplication in line
address setting for outdoor
units belonging to different
refrigerant piping systems.
All stop More than one indoor unit
has been set up as priority
indoor unit.
All stop More than one indoor unit
have been set up as priority
indoor unit.
Stop of There is at least one stand-
corresponding alone indoor unit to which
unit group control cable is
connected.
Stop of Address setting has not been
corresponding performed for indoor units.
unit
Stop of Capacity setting has not been
corresponding performed for indoor unit.
unit
All stop Jumper wire provided on P.C.
board for servicing I/F P.C.
board has not been removed
as required for given model.
All stop There is duplication in central
control address setting.
All stop There are more than four
outdoor units.
186
Check items (locations)
• Check indoor addresses.
• Check for any change
made to remote controller
connection (group/
individual) since indoor
address setting.
• Check line addresses.
• Check display on priority
indoor unit.
• Check displays on priority
indoor unit and outdoor
unit.
• Check indoor addresses.
• Check indoor addresses.
Note:
This code is displayed
when power is turned on
for the first time after
installation.
Set indoor capacity. (DN =
11)
Check model setting of P.C.
board for servicing outdoor
I/F P.C. board.
• Check central control
addresses.
• Check network adaptor
P.C. board (applicable to
AI-NET).
• Check No. of outdoor units
connected (Only up to 4
units per system allowed).
• Check communication
lines between outdoor
units.
• Check for defect in outdoor
P.C. board (I/F).