Troubleshooting for SkyAir Indoor Unit SiEBE18-526
284 Troubleshooting
5.14 Malfunction of Field Setting Switch
Remote
Controller
Display
UA
Applicable
Models
FFQ-B, FHQ-BU
Method of
Malfunction
Detection
Malfunction
Decision
Conditions
Incorrect field setting
Supposed
Causes
Indoor-Outdoor (BP) transmission line
Faulty remote controller wiring
Troubleshooting
NO
NO
NO
Connect correctly.
Connect correctly.
Normal
Set correctly.
YES
YES
YES
YES
NO
YES
NO
NO
YES
YES
NO
YES
Remove the jumper.
NO
(Q0401)
Check the power supply
system inside the indoor unit.
Could be incorrect wiring.
Check again.
Replace the indoor unit
PCB.
Connect the remote control
correctly.
Are wirings
between indoor and
BP unit correctly
connected?
Is 220 ~ 240
VAC between No.1 and 3
of X2M terminal
(indoor unit)?
Are
the wirings
between indoor
and BP unit
correctly
connected?
Is the
remote control
connected to one or more
indoor units?
Is
the remote
controller wiring jumped
between indoor
units?
Is
the field setting
for pa
ir /
twin sys
tem
correct?
Do the
microcomputer
normal monitors HAP
on all indoor unit PCB
blink?
Turn the power supply off once,
and back on to restart.
Does the
system conduct normal
operation?
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
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