Toshiba Super MMU-AP0091H Service Manual page 142

Check code
Main Outdoor 7-segment display
remote
Check code Sub-code
controller
L03 — —
L04 L04 —
L05 — —
L06 L06 No. of indoor units with
priority
— —
L07
L08 L08 —
L09 — —
L10 L10 —
L20 — —
L28 L28 —
L29 L29 01: IPDU1 error
02: IPDU2 error
03: IPDU1, 2 errors
04: Fan IPDU error
05: IPDU1 +
Fan IPDU error
06: IPDU2 +
Fan IPDU error
07: All IPDU error or
communication error
between IPDU and
I/F P .C. board, or
outdoor I/F P .C. board
error
Detected
AI-NET Check code name
position
central control
remote controller
96 Indoor Duplicated indoor center units
96 I/F Duplicated outdoor line address
96 I/F Duplicated indoor units with priority
(Displayed on indoor unit with priority)
96 I/F Duplicated indoor units with priority
(Displayed on the unit other than
indoor unit with priority)
99 Indoor Group line in individual indoor unit.
99 Indoor Indoor group / address unset
46 Indoor Indoor capacity unset
88 I/F Outdoor capacity unset
98 AI-NET, Duplicated central control addresses
Indoor
46 I/F Quantity over of connected outdoor
units
CF I/F IPDU quantity error
Status Error detection condition
Corresponding There are multiple center units in a
unit only stops. group.
All stop Line address setup is duplicated
against the outdoor unit in different
refrigerant pipe system.
All stop Indoor units with priority were
duplicated.
All stop Indoor units with priority were
duplicated.
Corresponding At least one indoor unit connected
unit only stops. to a group existed in the individual
indoor units.
Corresponding Address was not yet set up.
unit only stops.
Corresponding Indoor unit capacity was unset.
unit only stops.
All stop On the I/F P .C. board for service,
jumper line was not cut according
to the model.
All stop Duplicated central control
addresses
All stop There were more than four outdoor
units.
All stop No. of IPDU units detected when
power was turned on were less.
Check item (position)
• Check indoor address.
• Check the change of remote controller
connection (Group/individual) after indoor
address setup.
• Check line address.
• Check display of indoor unit with priority.
• Check display of indoor unit with priority and
outdoor unit.
• Check indoor address.
• Check indoor address.
Note)
After installation, this code is displayed when
the power is firstly turned on.
Set up indoor capacity. (DN=11)
Check model setup on outdoor I/F P .C. board
A'ssy for service.
• Check central control address.
• Check network adaptor P .C. board.
(In case of AI-NET)
• Check No. of connected outdoor units.
(Max. 4 units per 1 system)
• Check communication line between outdoor
units.
• Check outdoor P .C. board (I/F) error.
• Check model setup for outdoor I/F service
P .C. board.
• Check connection of UART communication
connector.
• Check IPDU, fan IPDU, and I/F P .C. board
error.
Note)
UART: Universal Asynchronous Receiver
Transmitter