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Troubleshooting by Remote Controller
SiBE341027
162
Service Diagnosis
Troubleshooting
NO
NO
YES
YES
NO
YES
YES
Connect the power supply wire
for the external control adaptor
for outdoor unit to 5V supply
line.
Replace the outdoor unit main
PCB.
Check if the power supply
wire for the external control
adaptor for outdoor unit is
connected to 5V supply
line.
Replace the PCB of the external
control adaptor for outdoor unit.
Replace the outdoor unit main
PCB.
NO
YES
NO
Correct the connecting wiring
with the external control adaptor
for outdoor unit.
Diagnosis Flow 1
Supply the power to the outdoor
unit.
Check if power is
supplied to the outdoor
units.
Check if the normal
condition monitor LED for
the outdoor unit PCB
blinks.
Check if the normal
condition monitor LED
for the external control
adaptor for outdoor
unit blinks.
Confirmation of error 3 Confirmation of error 4
Check if any disconnection or
connection error is detected
in connecting wires with
external control adaptor for
outdoor unit.
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.