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Troubleshooting
(7) Power factor correct or (PFC) fault (a fault of outdoor unit)(AP1 here in after refers to the control board of the outdoor unit)
Check wiring of the
reactor (L) of the
outdoor unit and the
PFC capacitor
Whether there is any
damage or
short-circuit?
Remove the PFC capacitor
and measure resistance
between the two terminals.
Is the resistance around zero?
Disconnect the terminals for the
reactor and measure the resistance
between the two terminals of the
reactor by an ohmmeter
Whether there is any damage
or short-circuit?
Replace the control
panel AP1
Start
Y
N
The capacitor is
short circuited and
Y
the capacitor
should be replaced
N
Y
Replace the reactor
N
End
Replace it as per the
wiring diagram and
reconnect the wires
N
Restart the unit
N
Restart the unit
N
If the fault is eliminated?
If the fault is eliminated?
If the fault is eliminated?
Y
Y
Y
67
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