Toshiba MMU-AP0091H Installation Manual page 166

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 Hexadecimal notation, 2 digits
Characteristics of Few classification of communication/incorrect
code classification setup system
Block display Indoor P .C. board, Outdoor P .C. board, Cycle,
Communication
<Display on wired remote controller>
• [ ] 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 wireless remote controller
receiver part>
• Unit No. and check code are displayed.
• In a case of error with auxiliary code, check code and
sub-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
remote controller
Check code in current system
] [ ] [
Network
adaptor
OC
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.










 →
]
AI-NET WORK bus
Indoor unit
remote controller
166
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
F10
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