Daikin SkyAir Super Inverter 70 D Series Service Manual page 195

Troubleshooting by Remote Controller Display / LED Display
Troubleshooting
Turn the power supply off once,
and back on to restart.
186
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Is the
number of indoor
units connected this
sytem correct?
YES
Is the
remote controller
connected to one or more
indoor units?
NO
Is
the remote
controller wiring jumped
between indoor
units?
NO
Is
the field setting
for pair /
twin system
correct?
YES
Do the
microcomputer
normal monitors (LED A)
on all indoor unit PC
boards
blink?
YES
Do the
transmission normal
monitors (LED B) on all indoor
unit PC boards
blink?
YES
Does the
system conduct normal
operation?
YES
NO
YES
YES
NO
Are the jumpers
NO
between indoor-indoor and
indoor-outdoor correctly
connected?
YES
NO Is the power supply
PC board correctly
connected?
YES
Is 220 ~ 240
VAC between No.1 and 3
of X2M terminal
(indoor unit)?
NO
Are
the jumpers
NO
between indoor-indoor
and indoor-outdoor
correctly
connected?
YES
SiE25-110
Connect correctly.
Connect the remote controller
correctly.
Remove the jumper.
Set correctly.
NO
Connect correctly.
NO
Connect correctly.
YES
Check the power supply
system inside the indoor unit.
Could be incorrect wiring.
Check again.
NO
Connect correctly.
Replace the indoor unit
PC board.
Normal
Troubleshooting
(S2606)