Daikin REMQ14PY1 [389/491] Repl a ce the centr a l pc b o a rd

Daikin REMQ16PY1 [389/491] Repl a ce the centr a l pc b o a rd
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 7URXEOHVKRRWLQJ
7URXEOHVKRRWLQJ
(V2841)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Is the
power supply for
the indoor unit displaying
a malfunction turned
on?
Is
transmission wiring
disconnected or wired
incorrectly?
Is the
transmission wiring
with the master controller
disconnected or wired
incorrectly?
Is
the master
controller's connector
for setting master controller
disconnected.
Set the group No.
correctly.
Replace the central PC board.
Fix the wiring correctly.
Fix the wiring correctly.
Connect the connector
correctly.
Replace the central PC board.
Reset power supply for all
optional controllers for
centralized control
simultaneously.
NO
YES
NO
YES
NO
NO
NO
Turn the power supply of the
indoor unit on.
YES
NO
YES
YES
YES
YES
NO
Has a once
connected indoor
unit been removed or its
address changed?
Diagnose the cause with the
air conditioner's failure
diagno
sis manual.
NO
YES
Is
a malfunction
code displayed on the
remote control?
Is
the group No.
of malfunctioning indoor
units set?
Is
transmission
with all indoor units
malfunctioning?

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