Daikin VRVIII-S Service Manual page 201

Troubleshooting by Indication on the Unified ON/OFF Control
Troubleshooting
190
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Has a
once connected
optional controller for
YES
centralized control been
disconnected or its address
changed?
NO
Is the
power supply
turned on for all NO
optional controllers for
centralized
control?
YES
Is
the reset
switch of all optional
NO
controls for centralized control
set to "normal"?
YES
Is
transmission
YES
wiring disconnected or wired
incorrectly?
NO
Is a central remote
YES
control or schedule timer
connected?
NO
Are
two or more
YES
unified ON / OFF controllers
connected?
NO
2A
Is
the central
YES
remote control or
schedule timer displaying a
malfunction?
NO
Is
the
setting of the
unified ON / OFF
NO
controller's switch for setting
each address
duplicated?
YES
SiENBE34-703
Reset power supply
simultaneously for all optional
controllers for centralized
control.
Turn on power supply for all
optional controllers for
centralized control.
Set reset switch to "normal."
Fix the wiring correctly.
Refer to failure diagnosis for
central remote control or
schedule timer.
Correct the setting of the
unified ON / OFF control's
switch for setting each
address and reset the power
supply of the unified ON /
OFF controller.
(V2842)
Troubleshooting