Daikin SkyAir RZR-P Series Service Manual page 178

Troubleshooting by Remote Controller
Troubleshooting
Service Diagnosis
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Has an
indoor unit once
YES
connected been removed
or its address
changed?
NO
Is the
power supply
NO
turned ON for indoor units
displaying error?
YES
Is
transmission
NO
wiring disconnected or
wired incorrectly?
YES
Is
transmission with NO
all indoor units
error?
YES
Is the
transmission
wiring with the main
NO
controller disconnected or
wired incorrectly?
YES
Is the main
controller's connector
NO
for setting main controller
disconnected?
YES
Is the
NO
group No. of error
indoor units set?
YES
SiUS281117
Reset power supply
simultaneously for all optional
controllers for centralized
control.
Turn indoor unit's power
supply.
Fix the wiring correctly.
Set the group No.
correctly.
Replace the indoor unit
PCB.
Fix the wiring correctly.
Connect the connector
correctly.
Replace the central PCB.
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