Malfunction Of Field Setting Switch - Daikin Super Multi Plus D-Series Service Manual

Troubleshooting for SkyAir Indoor Unit

5.14 Malfunction of Field Setting Switch

UA
Remote
Controller
Display
Applicable
FFQ-B, FHQ-BU
Models
Method of
Malfunction
Detection
Malfunction
Incorrect field setting
Decision
Conditions
Supposed
Causes
Troubleshooting
Turn the power supply off once,
and back on to restart.
284
Indoor-Outdoor (BP) transmission line
Faulty remote controller wiring
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Is the
remote control
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 HAP
on all indoor unit PCB
blink?
YES
Does the
system conduct normal
operation?
YES
YES
YES
NO
Are wirings
NO
between indoor and
BP unit correctly
connected?
YES
Is 220 ~ 240
VAC between No.1 and 3
of X2M terminal
(indoor unit)?
NO
Are
the wirings
between indoor
NO
and BP unit
correctly
connected?
YES
SiEBE18-526
Connect the remote control
correctly.
Remove the jumper.
Set 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
PCB.
Normal
Troubleshooting
(Q0401)