Daikin RXYQ96PYDN Service Manual page 444

SiUS34-801A_b
Troubleshooting
Troubleshooting
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Diagnosis Flow 3
Check 3 Check 4
Check
the connection status
of connecting wires of Multi Slave
1 with outdoor multi.Check if the wiring is
disconnected or is about to be
disconnected.
NO
Diagnosis Flow 4
Check 3 Check 4
Check
the connection status
of connecting wires of Multi Slave
2 with outdoor multi. Check if the wiring is
disconnected or is about to be
disconnected.
NO
Diagnosis Flow 5
Check 3 Check 4
Check
if the outdoor unit
REYQ8~16PY1 is
connected to multi-
system.
NO
Troubleshooting by Indication on the Remote Controller
YES
YES
YES
Correct the connecting wires of the
outdoor multi and then reset the
power supply.
Replace the outdoor unit main PC
board of the Multi Slave 1.
Correct the connecting wires of
the outdoor multi and then reset
the power supply.
Replace the outdoor unit main PC
board of the Multi Slave 2.
Remove the connecting wires of
the outdoor multi and then reset
the power supply.
Replace the main PC board of
the outdoor unit.
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