Daikin RXYQ-TA Series, Руководство по обслуживанию, Страница: 286 / 337

Troubleshooting by Error Code SiUS341615E
273 Service Diagnosis
Unified Cool/ Heat
selection
Cool/Heat
selection for the
external control adaptor
for outdoor unit is set to
“Unified Master”.
Cool/Heat
selection for the
external control adaptor
for outdoor unit is set
to “Unified
Slave”.
Is
the normal
operation monitor
LED on the outdoor unit
main PCB
blinking?
Is power supplied
to the outdoor unit?
Is the power
supply cable of the
external control adaptor for
outdoor unit connected to
the 16 VDC power
supply line?
Is the
normal
operation monitor
LED on the external control
adaptor for outdoor
unit blinking?
Does the
error recur when
setting Cool/Heat
selection for the external
control adaptor for
outdoor unit to
“IND”?
NO
NO
NO NO
NO NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
Replace the outdoor unit
main PCB (A1P).
Replace the external control
adaptor for outdoor unit PCB.
Connect the power
supply cable of the
external control adaptor
for outdoor unit to the
16 VDC power supply
line.
Replace the outdoor unit
main PCB (A1P).
Supply power to the
outdoor unit.
Replace the outdoor unit
main PCB (A1P).
Unified Cool/Heat
addresses for outdoor
units in the outdoor-
outdoor transmission
are duplicated. Make
address setting again.
Set Cool/Heat selection
for the external control
adaptor for outdoor unit
to “IND.”
Diagnosis Flow-2
(Transmission error when the external
control adaptor for outdoor unit is mounted)
Error code Sub code
U7-02