Daikin RTSQ20PY1 Service Manual page 319

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 6
Confirmation of Confirmation of
malfunction 3 malfunction 4
Are manual address settings (of the
slave units 1 and 2) correct in order to
connect the AIRNET?
YES
Check the connection status of one of
the connecting wires of Outdoor Multi.
Check if the wiring is broken or
disconnected.
NO
Diagnosis Flow 7
Confirmation of Confirmation of
malfunction 3 malfunction 4
In the connection status of
the outdoor multi, check if
more than 4 outdoor units
are connected.
NO
Diagnosis Flow 8
Confirmation of Confirmation of
malfunction 3 malfunction 4
Check the connection status of the
connecting wires of outdoor multi.
Check if the wiring has any connection
error or broken, or is about to be
disconnected.
NO
Troubleshooting by Indication on the Remote Controller
NO
Correct the manual address
settings.
(For detail, refer to information in
the "AIRNET Installation Manual".)
YES
Correct the connecting wires of the
outdoor multi and then reset the
power supply.
Replace the main PCB of the
outdoor unit (A1P).
YES
Correct the connecting wires of the
outdoor multi and then reset the
power supply.
Replace the main PCB of the
outdoor unit (A1P).
YES
Correct the connecting wires of the
outdoor multi and then reset the
power supply.
Replace the main PCB of the
outdoor unit (A1P).
308