Toshiba MMW-AP0481CHQ-E Service Manual page 59

Check code
Outdoor 7-segment display
Main
remote
Check
controller Sub-code
code
L05 — —
No. of priority indoor
units
L06 L06
L07 — —
L08 L08 —
L09 — —
L10 L10 —
01:FS unit (s)
installation trouble
L12 L12
L17 L17 —
Detected indoor
L18 L18
address
L20 — —
01:Duplication of FS
units address
02:Indoor units
L24 L24
operation mode
priority setting
L28 L28 —
Location
Description
of
detection
I/F Duplicated
priority indoor
unit (as displayed
on priority indoor
unit)
I/F Duplicated
priority indoor
unit (as displayed
on indoor unit
other than priority
indoor unit)
Indoor unit Connection of
group control
cable to
stand alone
indoor unit
Indoor unit Indoor group /
addresses not
set
Indoor unit Indoor capacity
not set
I/F Outdoor capacity
not set
I/F FS unit (s)
outside the
application
setting
I/F Incompatible
combination of
outdoor units
FS unit Cooling/heating
selection unit
trouble
Indoor unit Duplicated
central control
address
I/F FS unit(s) setting
trouble
I/F Too many
outdoor units
connected
Check code detection
System status
condition(s)
All stop More than one indoor
units have been set up
as priority indoor unit.
All stop More than one indoor
units have been set up
as priority indoor unit.
Stop of There is at least one
corresponding stand alone indoor unit to
unit which group control cable
is connected.
Stop of Address setting has not
corresponding been performed for
unit indoor units.
Stop of Capacity setting has not
corresponding been performed for
unit indoor 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 Set up other than multi
port type and single port
type (Long piping model)
FS unit (s) to 44HP or
more system
All stop Old model outdoor unit
(prior to 6 series) has
been connected
Stop of Cooling/heating cycle
corresponding trouble resulting from
unit piping trouble is detected
All stop There is duplication in
central control address
setting.
All stop • Address setting has not
been performed for FS
units
• Priority setting has not
been performed for
indoor units
All stop There are more than
three outdoor units.
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Check items (locations)
• 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 outdoor unit model name.
• Check FS unit model name.
• Check restricted installation of
FS unit.
• Check outdoor unit model.
• Check Cooling/Heating FS unit.
• Check set Cooling only setting.
• Check central control addresses.
• Check FS units addres.
• Check indoor units operation mode
priority setting.
• Check outdoor unit 7-segment
monitor.
• Check No. of outdoor units
connected (Only up to 3 units per
system allowed).
• Check communication lines
between outdoor units.
• Check for trouble in outdoor P.C.
board (I/F).