Daikin RQYQ140-180PY1 Service Manual page 178

Troubleshooting by Remote Controller
Troubleshooting
169
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Diagnosis Flow 3
Confirmation of malfunction 3 Confirmation of malfunction 4
Check
the connection status
of connecting wires of the outdoor
multi to SLAVE 1. Check if the wiring is
disconnected or is about to be
disconnected.
YES
Diagnosis Flow 4
Confirmation of malfunction 3 Confirmation of malfunction 4
Check
the connection status
of connecting wires of the outdoor
multi to SLAVE 2. Check if the wiring is
disconnected or is about to be
disconnected.
YES
Diagnosis Flow 5
Confirmation of malfunction 3 Confirmation of malfunction 4
Check
if the outdoor unit
is connected to multi-
system.
YES
NO
NO
NO
SiBE341001
Replace the outdoor unit main
PCB of the SLAVE 1.
Correct the connecting wires of the
outdoor multi and then reset the
power supply.
Replace the outdoor unit main
PCB of the SLAVE 2.
Correct the connecting wires of
the outdoor multi and then reset
the power supply.
Replace the main PCB (A1P) of
the outdoor unit.
Remove the connecting wires of
the outdoor multi and then reset
the power supply.
Troubleshooting