Duplicated Follower Outdoor Address Setup; Decrease Of Connected Outdoor Units - Toshiba Super MMU-AP0091H Service Manual

Check code
[E25] / [15]
(d07 / AI-NET)
Do not set up outdoor address manually.
Check code
[E26] / [15]
(d07 / AI-NET)
Sub-code: No. of outdoor units which received signals normally
Is outdoor unit setting backup?
NO
Is main power of follower unit turned on?
YES
Is communication line between
outdoor units connected normally?
YES
Is communication connector (CN03)
between follower outdoor units connected?
YES
Check I/F P.C. board.
Check code name
Duplicated follower
outdoor address setup
Check code name
Decrease of connected outdoor
units
YES
NO
NO
NO
(∗ ∗ ∗ ∗ ∗ 1) How to clear the error
Set SW01/SW02/SW03 on I/F P.C. board of header unit to 2/16/1,
and push SW04 for 5 seconds or more.
(7-segment display: [Er.] [CL])
Addresses are duplicated by manual setup of
outdoor address
1. Outdoor unit backup setup
2. Outdoor power error
3. Communication line connection error between
outdoor units
4. Connector connection error for communication
5. Outdoor I/F P.C. board error
Clear the error, and then start operation. ( 1)
Turn on the main power supply.
Correct connection of communication line.
Correct connector connection.
(Communication connector: CN03)
161
Cause of operation
Cause of operation