Toshiba MM-A0280HT Service Manual page 55

7-Segment Display
Filter Data
Example: A Filter signal is sent from No. 1 and No. 15 units under grouping operation.
Check Data
14
Example: Room Temp. sensor of No. 1 is defective.
Troubleshooting
Remote Controller Check Display
Unit No.
Check code detected at first
In No. 15, first the Heat Exchanger sensor has
failed. Next, the indoor/outdoor inter-unit wire
(bus communication line) is defective.
After 3
seconds
Check code detected at last
Example: There is no check
56
Hexadecimal
notation
Decimal notation
data.