Toshiba MMK-AP0073HP1-E1 Service Manual page 81

7-4. Check Code and Check Position Displayed on the Remote Controller and Outdoor Unit
(7-Segment Display of Interface)
Check code
Main
Outdoor 7-segment display
remote
controller Check code Sub-code
E01 — —
E02 — —
E03 — —
E04 — —
E06 E06 No. of indoor units which
received signal normally
— E07 —
E08 E08 Duplicated indoor
addresses
E09 — —
Detected
AI-NET Check code name
position
central control
remote controller
— Remote Communication error between
controller indoor and remote controller
(Detected at remote controller side)
— Remote Remote controller sending error
controller
97 Indoor Communication error between
unit indoor and remote controller
(Detected at indoor side)
4 Indoor Indoor/outdoor communication
unit circuit error
(Detected at indoor side)
4 I/F Decreased number of indoor units
— I/F Indoor/outdoor communication
circuit error
(Detected at outdoor side)
96 Indoor Duplicated indoor addresses
I/F
99 Remote Duplicated master remote
controller controllers
Status Error detection condition
Corresponding Communication interrupted
unit only stops. between indoor P .C. board and
remote controller.
Corresponding Signal could not be sent from
unit only stops. remote controller to indoor unit.
Corresponding No communication from remote
unit only stops. controller (including wireless) and
communication adaptor.
Corresponding Indoor unit does not receive
unit only stops. communication from outdoor unit.
All stop When signal is not sent for a certain
period from the indoor unit which
has been used to send signals,
[E06] is normally displayed.
All stop Transmission from outdoor to indoor
cannot continue for 30 seconds.
All stop Multiple indoor unit address setup
are duplicated.
Corresponding In 2-remote controller control
(including wireless), both are setup
unit only stops.
as master
(Header indoor unit stops and other
indoor unit is operating.)
Check item (position)
• Check remote controller inter-unit wire (A/B).
• Check disconnection, connector contact error.
• Check indoor power supply.
• Check indoor P .C. board error.
• Check remote controller address setup.
(When two remote controllers operate)
• Check remote controller P .C. board.
• Check the communication wire of remote controller:
Exchange remote controller.
• Check remote controller and communication
adaptor wiring.
• Check power-ON order of indoor/outdoor.
• Check indoor address setup.
• Check inter-unit wiring between indoor and outdoor.
• Check outdoor end terminal resistance setup
(SW30-2).
• Check SW02 setup on the wall type P .C. board.
(Should be Bit 1: ON, Bit 2: OFF)
• Check the power supply of indoor unit.
(Power-ON)
• Check connection of communication line between
indoor and outdoor.
• Check connector connection for communication in
indoor P .C. board.
• Check connector connection for communication in
outdoor P .C. board.
• Check indoor P .C. board failure.
• Check outdoor P .C. board (I/F) failure.
• Check outdoor end terminal resistance setup
(SW30-2).
• Check the communication connection between
indoor and outdoor.
• Check indoor address.
• Check the change of remote controller connection
(Group / individual) after setup of indoor address.
• Check SW02 setup on the wall type P .C. board.
(Should be Bit 1: ON, Bit 2: OFF)
• Check remote controller setup.
• Check remote controller P .C. board.