Toshiba Super MMY-MAP0801HT7 - Header Outdoor Units Quantity Error; Unit Connected to Other Line During Automatic Address

159
YES
YES
NO
NO
Are not communication lines (U1, U2)
between indoor and outdoor connected
to multiple outdoor units?
Is communication line between indoor and
outdoor connected to one unit per 1 system?
Check I/F board.
Connect communication line between indoor
and outdoor.
Connect communication line between indoor
and outdoor to one unit per 1 system.
Check code
[E19] / [96]
(d07 / AI-NET)
Check code name
Header outdoor units quantity error
Cause of operation
1. Misconnection of inter-unit cable between
indoor and outdoor
2. Outdoor I/F P.C. board error
Sub-code: 00: No header unit 02: Two or more header units
Check code
[E20] / [42]
(d07 / AI-NET)
Check code name
Unit connected to other line
during automatic address
Cause of operation
When starting automatic indoor address, a
device in other line is connected.
Sub-code: 01: Connection of outdoor in other line 02: Connection of indoor unit in other line
Separate the wire between lines according to address setup method.
Reference)
An outdoor unit connected with communication wires (U1, U2)
between indoor and outdoor is the header unit.