Daikin VRV III REYQ8PY1, Service Manual

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Troubleshooting by Indication on the Remote Controller Si37-701
316 Troubleshooting
Troubleshooting
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)
Check the LED lamps for
“Check 3” corresponding
to the malfunction code
“
U7
” and for Check 4 in
the monitor mode. (Refer
to P228~229 for how to
check)
Check 3
Check 3
Check 3
Check 3
Check 3
Check 3
Check 3
Check 3
Check 4
Check 4
Check 4
Check 4
Check 4
Check 4
Check 4
Check 4
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.