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Troubleshooting by Remote Controller
Si20-701_B
445
Troubleshooting
Has
an indoor
unit once
connected been
removed or its
address
changed?
Is the
power supply
turned ON for indoor
units displaying
error?
YES
YES
Fix the wiring
correctly.
Is
transmission
wiring disconnected
or wired
incorrectly?
NO
RZQG
RZQ-C
YES
NO
YES
NO
Reset power
supply
simultaneously
for all optional
controllers for
centralized
control.
Is
the
transmission
wiring with the
centralized controller
disconnected or wired
incorrectly?
Caution
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
NO
Turn indoor unit's
power supply.
YES
Fix the wiring
correctly.
NO
YES
NO
Set the group
No. correctly.
Is the
group No. of
defective indoor units
set?
Is
transmission error
with all indoor
units?
Replace the
indoor unit PCB.
A