Troubleshooting for SA Indoor Unit - FFQ, FCQ, FDBQ, FBQ, FHQ Series SiBE121021_C
332 Service Diagnosis
Troubleshooting
Connect them correctly.
Replace the indoor unit PCB.
Normal
Connect them correctly.
Check the power supply system
inside the indoor unit.
Could be incorrect wiring.
Check again.
YES
YES
NO
NO
Connect the remote controller
correctly.
YES
NO
NO
YES
Remove the jumper.
NO
YES
Set it correctly.
YES
NO
NO NO
YES
YES
(R13067)
Is the remote
controller connected to
one or more indoor
units?
Is the remote
controller wiring jumped
between indoor
units?
Is the field
setting correct?
Do the
microcomputer
normal monitors HAP on all
indoor unit PCB
blink?
Are the wirings
between indoor unit and
outdoor unit correctly
connected?
Is 220 ~ 240
VAC between No.1 and
3 of X2M terminal
(indoor unit)?
Does the system conduct
normal operation?
Are the wirings
between indoor unit and
outdoor unit correctly
connected?
Turn the power supply off
once, and back on to restart.
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
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