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

SiEN18-622

5.14 Malfunction of Field Setting Switch

UA
Remote Control
Display
Applicable
FFQ, FCQ, FBQ, FHQ
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.
Troubleshooting
Indoor-Outdoor (BP) transmission line
Faulty remote control 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 control wiring
jumped between indoor
units?
NO
Is the field setting
for pair / twin
system correct?
YES
Do the
microcomputer
NO
normal monitors
HAP on all indoor
unit PCB blink?
YES
Does the system
NO
conduct normal
operation?
YES
YES
YES
NO
Are wirings
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
and BP unit
correctly
connected?
YES
Troubleshooting for SkyAir Indoor Unit
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
(Q0401)
349