Daikin REMQ14PY1 [365/491] Caution be su re to t u rn off power s witch b efore connect or di s connect connector or p a rt s d a m a ge m a y b e occ u rred

Daikin REMQ16PY1 [365/491] Caution be su re to t u rn off power s witch b efore connect or di s connect connector or p a rt s d a m a ge m a y b e occ u rred
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NO
NO
YES
YES
NO
NO
YES
Connect the power supply wire
for the external control adapter
for outdoor unit to 5V supply line.
Replace the main PC board of
the outdoor unit.
YES
Replace the main PC board of
the outdoor unit.
NO
NO
YES
Set the cooling/heating switch of
the external control adapter for
outdoor unit to “individual”.
Switch
cooling/heating in a
lump.
Setting of
cooling/heating switch for
the external control adapter for
outdoor unit is “Master
in a lump”.
Setting of
cooling/heating switch for
the external control adapter for
outdoor unit isSlave in
a lump”.
Check if
the normal condition
monitor LED for the outdoor
unit main PC board
blinks.
Check if the
outdoor unit is powered
on.
Check if the
power supply wire for the
external control adapter for outdoor
unit is connected to 5V
supply line.
Check if the
normal condition
monitor LED for the external
control adapter for outdoor
unit blinks.
Set
the cooling/heating
switch of the external control
adapter for outdoor unit to “individual”.
Then check if the failure
occurs again.
YES
NO
The integrated addresses for
cooling/heating within the
outdoor/outdoor transmission are
duplicated. Set the address
again.
NO
YES
Replace the main PC board of
the outdoor unit.
Diagnosis Flow 2
YES
Replace the PC board of the
external control adapter for
outdoor unit.
Supply power to the outdoor
unit.
Check 3 Check 4
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.

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