Daikin SkyAir RZQ200 · 250C7Y1B Service Manual page 182

SiBE26-701
Troubleshooting
Troubleshooting
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Is
transmission wiring
YES
disconnected or
wired incorrectly?
NO
Is
the power supply
NO
turned on for indoor units
displaying
malfunction?
YES
Has
an indoor unit once
YES
connected been removed
or its address
changed?
NO
Is
transmission with
NO
all indoor units
malfunctioning?
YES
Is
the transmission
wiring with the master YES
controller disconnected
or wired
incorrectly?
NO
Is the
master controller's
YES
connector for setting
master controller
disconnected?
NO
Diagnosis by Remote Controller
Is the group
NO
No. of malfunctioning
indoor units set?
YES
Fix the wiring correctly.
Turn indoor unit's power
supply.
Reset power supply
simultaneously for all optional
controllers for centralized
control.
Set the group No.
correctly.
Replace indoor unit PC
board.
Fix the wiring correctly.
Connect the connector
correctly.
Replace the centralized
controller.
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