Service manual

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Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Defect of indoor unit PC board.
Modify the drain piping.
Check if the humidifier unit is
leaking.
(V2782)
Caution
Field drain piping has a
defect such as upward
sloping.
A humidifier unit
(optional accessory) is
installed on the indoor
unit.
YES
YES
NO
NO