BN interface Installation Manual
18
-EN
5-3. Cause of problem occurring during setup
6 Turning off the BN interface
Press the shutdown button, then wait 5 minutes before turning it off.
When turning off the BN interface
• Press the Shutdown button 2 times.
• The status of the LED L1 changes to LEDstatus-5 and then to LEDstatus-6.
• Disconnect the power adapter from the BN interface.
As the air conditioner search mode will be engaged if the shutdown button is pressed for 4 seconds or longer, do not hold down
the button.
Cause of problem Cause Action
The indoor unit cannot be found.
The indoor and outdoor units have not been
turned on.
Make sure that indoor and outdoor units are
turned on.
The indoor and outdoor units are being
initialized and it is not possible to
communicate with them.
LINK1(Uh) does not blink at all
Make sure that indoor and outdoor units are
turned on.
Make sure they have been on for at least
10 minutes.
The Uh Line cables have been incorrectly
connected.
Connect the cables correctly.
The central control address has not been set
in the indoor units.
Make sure that the central control address has
been set in the indoor units.
The central control address set in
the indoor units are not unique.
The same central control address has been
set in a number of indoor units.
Make sure that the central control address has
been correctly set in the indoor units.
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