Toshiba R410A Service Manual page 120

New check code
1. Difference between the TCC LINK and AI-NET check code
The displaying method of the check code changes in this model and onwards.
Used characters Hexadecimal notation, 2 digits
Characteristics of code Few classification of communication/
classification incorrect setup system
Block display Indoor P .C. board, Outdoor P.C.
board, Cycle, Communication
Display in wired remote controller
• [ ] is displayed.
• [UNIT No.] + Check code + Operation lamp (Green) flash
Display on sensor part in wireless remote controller
• Block display of combination of [
Display on 7-segment in outdoor unit
• Unit No. and check code are displayed.
• In a case of error with auxiliary code, the check code and the
auxiliary code are displayed alternately.
2. Special mention
1) If this model is connected to AI-NET by network adaptor, the different check codes are displayed on the
main remote controller and AI-NET central control remote controller.
Example) Indoor TA sensor error
OC
AI-NET
central control
remote controller
2) The check code of the remote controller is displayed only while the air conditioner is operating (remote
controller start button ON).
When the air conditioner has stopped and the error has been cleared, the check code display on the
remote controller also disappears.
However, if the error continues after the unit has stopped, the check code is immediately displayed when
the unit is restarted.
AI-NET check code
] [ ] [ ]
Network adaptor
Alphabet + Decimal notation, 2 digits
Many classification of communication/incorrect setup system
Communication/Incorrect setup (4 ways), Indoor protection,
Outdoor protection, Sensor, Compressor protection, etc.
Display
A
C
E
F
H
J
L
P
AI-NETWORK BUS
Wired remote controller
120
TCC Link
Classification
Unused
Central control system error
Communication system error
Each sensor error (Failure)
Compressor protective system error
Unused
Setup error, Other errors
Protective device operation
Indoorunit
F10