Toshiba Super MMU-AP0091H Service Manual page 150

Check code
[E02] / [–]
(d07 / AI-NET)
* It is not displayed on 7-segment display of the central control controller.
Is communication cabling between
remote controller and indoor unit correct?
YES
Sending circuit error
inside of the remote controller
Replace remote controller.
Check code
[E03] / [97]
(d07 / AI-NET)
This error is detected when the indoor unit cannot receive a signal from the remote controller.
Check communication cables of the remote controllers A and B.
As communication is impossible, this check code [E03] is not displayed on the main remote controller.
It is displayed on TCC-LINK central controller.
Check code name
Remote controller sending error
NO
Check code name
Communication error between
indoor and remote controller
(Detected at indoor side)
Signal could not be sent to indoor unit.
Check the communication wire of the remote
controller.
Correct the communication cabling.
No communication from remote controller and
communication adaptor
150
Cause of operation
Cause of operation