7 Segment Display; Filter Data; Check Data - Toshiba HFCR407C Service Manual

7 segment display

Filter data

Example: A Filter signal is sent from No. 1 and No. 15 units under grouping operation.

Check data

Example: Room Temp. sensor of No. 1 is defective.
In No. 15, first the Heat Exchanger sensor has
failed. Next, the indoor/outdoor inter-unit wire (bus
communication line) is defective.
Troubleshooting
Remote controller check display
Unit No.
Check code detected at first
After 3
seconds
Check code detected at last
Example: There is no check data.
77
Hexadecimal notation
Decimal notation
14