Daikin RXYQ96PYDN Service Manual page 441

Troubleshooting by Indication on the Remote Controller
Troubleshooting
426
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Check the LED lamps for
"Check 3" corresponding
to the malfunction code
U7
" " and for Check 4 in
the monitor mode. (Refer
to P336~337 for how to
check)
Check 3 Check 4
Check 3 Check 4
Check 3
Check 4
Check 3
Check 4
Check 3
Check 4
Check 3
Check 4
Check 3
Check 4
Check 3
Check 4
SiUS34-801A_b
Go on to the Diagnosis Flow 1
(Faulty transmission caused
when the external control adaptor
for outdoor unit is mounted)
Go on to the Diagnosis Flow 2
(Transmission alarm given when
the external control adaptor for
outdoor unit is mounted)
Go on to the Diagnosis Flow 3
(Abnormal transmission between
the master unit and the slave unit 1)
Go on to the Diagnosis Flow 4
(Abnormal transmission between
the master unit and the slave unit 2)
Go on to the Diagnosis Flow 5
(Multi-connection REYQ units)
Go on to the Diagnosis Flow 6
(Erroneous manual address
settings of the slave units 1 and 2)
Go on to the Diagnosis Flow 7
(Connection of four or more
outdoor units to the same circuit)
Go on to the Diagnosis Flow 8
(Faulty auto address of the slave
units 1 and 2)
Troubleshooting