Daikin RQYQ140-180PY1 Service Manual page 175

SiBE341001
Troubleshooting
Troubleshooting
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Check the LED lamps for
"Confirmation of
malfunction 3"
corresponding to the
U7
malfunction code " " and
for Confirmation of
malfunction 4 in the monitor
mode.
Confirmation of malfunction 3 Confirmation of malfunction 4
Confirmation of malfunction 3 Confirmation of malfunction 4
Confirmation of malfunction 3 Confirmation of malfunction 4
Confirmation of malfunction 3 Confirmation of malfunction 4
Confirmation of malfunction 3 Confirmation of malfunction 4
Confirmation of malfunction 3 Confirmation of malfunction 4
Confirmation of malfunction 3 Confirmation of malfunction 4
Confirmation of malfunction 3 Confirmation of malfunction 4
Confirmation of malfunction 3 Confirmation of malfunction 4
Confirmation of malfunction 3 Confirmation of malfunction 4
Troubleshooting by Remote Controller
Go on to the Diagnosis Flow 1
(Faulty transmission caused
when the external control adaptor
is mounted)
Go on to the Diagnosis Flow 2
(Transmission alarm given when
the external control adaptor 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
(Faulty auto address of the slave
units 1, 2 and 3)
Go on to the Diagnosis Flow 6
(Erroneous manual address settings
of the slave units 1, 2 and 3)
Go on to the Diagnosis Flow 7
(Connection of five or more
outdoor units to the same circuit)
Go on to the Diagnosis Flow 8
(Abnormal transmission between
the master unit and the slave unit 3)
Go on to the Diagnosis Flow 9
(Indoor connection capacity
malfunction by a test run)
Go on to the Diagnosis Flow 10
(BS alarm (cooling/heating unified
ADP))
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