Service manual

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Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
(V2823)
NO
NO
NO
YES
NO
Replace indoor unit PC
board.
Set one remote control to
"SUB"; turn the power supply
off once and then back on.
There is possibility of
malfunction caused by noise.
Check the surrounding area
and turn on again.
There is possibility of
malfunction caused by noise.
Check the surrounding area
and turn on again.
Norma
l
Normal
NO
NO
Using 2 remote
controls control.
All
indoor PC
board microcomputer
monitors blink.
Operation
returns to normal
when the power is turned
off momentarily.
YES
YES
YES
SS1 of both
remote controls
is set to "MAIN."
Replace the remote control
Normal
YES
Replace the indoor unit PC
board.
Normal
YES