Toshiba MMU-AP0071YH Manual De Instalación página 28

9
TROUBLESHOOTING
New check code
1. Difference between the new check code and the current system
The displaying method of the check code changes in this model and after.
Used characters
Characteristics of code classification
Block display
<Display on wired remote controller>
• [CHECK] goes on.
• [UNIT No.] + Check code + Operation lamp (Green) flash
<Display on sensor part of wireless>
• Block display of combination of [
<Display on indicater on wiress remote controller
receiver part>
• Unit No. and check code are displayed.
• In a case of error with auxiliary code, check code and
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 (New check code display on new remote controller) and AI-NET central control remote
controller (Current system check code display on the current system central control remote controller).
2) The check code is displayed only while the air conditioner is operating (Remote controller start button ON).
When the air conditioner stops and the error is cleared, the check code display on the remote controller also
disappears. However, if the error continues after stop of the operation, the check code is immediately
displayed with restarting.
AI-NET central control
Check code in current system
Hexadecimal notation, 2 digits
Few classification of communication/incorrect setup system
Indoor P.C. board, Outdoor P.C. board, Cycle, Communication
] [ ] [ ]
Network
adaptor
OC
remote controller
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.









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 →
AI-NET WORK bus
Indoor unit
F10
Main
remote controller
25
New check code
Display Classification
A Unused
C Central control system error
E Communication system error
F Each sensor error (Failure)
H Compressor protective system error
J Unused
L Setup error, Other errors
P Protective device operation