Service manual

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Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
(V2844)
Is the switch for
setting each address
set correctly?
Is the transmission
wiring disconnected or
wired incorrectly?
Replace the PC board of the
unified ON/OFF controller.
Fix the wiring correctly.
Set by remote control the central
control address for all indoor units
connected to the central control
line.
YES
YES
Set the switch for setting each
address correctly and
simultaneously reset the power
supply for all optional controllers
for centralized control.
NO
NO
NO
YES
Is the central control
address (group No.) set for
the indoor unit?