SiEN18-622 Troubleshooting for SkyAir Indoor Unit
Troubleshooting 339
Troubleshooting
Check No.01
Refer to P.350
Connect correctly.
Remove the foreign matter.
NO
YES
YES
Replace the fan motor.
YES
NO
NO
Check No. 01
YES
Replace the indoor unit PCB.
Turn off the power supply.
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
(Q0414)
Is the
harness from the fan
motor correctly connected to X20A
connector on A1P?
Is there any
foreign matter
around the fan?
Does
the resistance
between U,V,W phases
of fan motor balance each
other? Is there short circuit
between U,V,W
phases
respectively?
Check for the fan motor
connector.
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