Malfunction Of Field Setting Switch - Daikin E-Series Service Manual

SiAU18-715
5.14

Malfunction of Field Setting Switch

UA
Remote
Controller
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 controller wiring
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
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 HAP on all
indoor unit PCB
blink?
YES
Does the system conduct
normal operation?
YES
YES
YES
NO
Are the 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
NO
between indoor and BP
unit correctly
connected?
YES
Troubleshooting for SkyAir Indoor Unit
Connect the remote controller
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
(Q0544)
347