Daikin RZQG71L9V1, Service Manual

Page: 193 / 215

ESIE15-13C Troubleshooting by Remote Controller
Service Diagnosis 179
Troubleshooting
Are
the remote
controllers connected to
several indoor units?
Adopt only one of the remote
controllers.
YES
Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred.
NO
Is
the remote
controller wiring jumped
between indoor units?
Remove the jumper.
(Group control in the same
system is not allowed.)
YES
NO
YES
Is the
field setting for pair
system correct?
Set correctly.
NO
Connect correctly.
Do
the micro-
computer normal
monitors (HAP) on all indoor
unit PCB blink?
Are
the wires
between indoor-outdoor
correctly connected?
YES YES
NO
NO NO
Connect correctly.
Is it normal?
Are
the wires between
indoor-outdoor correctly
connected?
NO NO
Connect correctly.
Is the
power supply
for the option device connected
from 1 and 2 of X2M?
YES
NO
Connect correctly.
Is the
power supply PCB
correctly connected?
YES
NO
Check the power supply system
inside the indoor unit.
Is 220
VAC between 1 and 2 of
X2M?
YES
Could be wrong wiring.
Check again.
YES
Replace the indoor unit PCB.
Normal
YES
Turn OFF the power supply once,
and turn the power ON to restart.