Troubleshooting By Indication On The Remote Controller - Daikin RTSQ20PY1 Service Manual

SiBE31-801_C
Troubleshooting
Troubleshooting
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Diagnosis Flow 2
Confirmation of Confirmation of
malfunction 3 malfunction 4
Switch cooling/
heating in a lump.
YES
Setting of cooling/heating
switch for the external control
adaptor for outdoor unit is
"Master in a lump".
NO
Setting of cooling/heating
switch for the external control
adaptor for outdoor unit is
"Slave in a lump".
YES
Check if the normal
condition monitor LED for
the outdoor unit main
PCB blinks.
YES
Check if the normal
condition monitor LED for
the external control adaptor
for outdoor unit blinks.
YES
Set the cooling/heating switch of the
external control adaptor for outdoor
unit to "individual". Then check if the
failure occurs again.
YES

Troubleshooting by Indication on the Remote Controller

NO
YES
NO
NO Check if the
outdoor unit is
powered on.
YES
Check if the power supply wire
NO
for the external control adaptor
for outdoor unit is connected to
5V supply line.
YES
NO
Set the cooling/heating switch of
the external control adaptor for
outdoor unit to "individual".
The integrated addresses for
cooling/heating within the outdoor/
outdoor transmission are
duplicated. Set the address again.
Replace the main PCB of the
outdoor unit (A1P).
NO
Supply power to the outdoor unit.
Replace the main PCB of the
outdoor unit (A1P).
NO
Connect the power supply wire for
the external control adaptor for
outdoor unit to 5V supply line.
Replace the PCB of the external
control adaptor for outdoor unit.
Replace the main PCB of the
outdoor unit (A1P).
306