Unspecified Voltage (Between Indoor Unit And Outdoor Unit) - Daikin CTXS07LVJU Service Manual

Troubleshooting for CTXS, FTXS, CDXS, FDXS, FVXS Series
5.6 Unspecified Voltage (Between Indoor Unit and Outdoor
Unit)
UA
Error Code
Method of Error The supply power is detected for its requirements (pair type is different from multi type) by the
indoor/outdoor transmission signal.
Detection
Error Decision The pair type and multi type are interconnected.
Conditions
Supposed
Causes
Troubleshooting
124
Wrong models interconnected
Wrong wiring of connecting wires
Wrong indoor unit PCB or outdoor unit PCB mounted
Defective indoor unit PCB
Defective outdoor unit PCB
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Check the combination of the
indoor and outdoor unit.
OK?
YES
Are the
connecting wires connected
property?
YES
NO
NO
SiUS121602E
Match the compatible models.
Correct the connection.
Check the code numbers
(2P012345, for example) of the
indoor and outdoor unit PCB
with the Parts List.
If not matched, change for the
correct PCB.
(R20435)
Service Diagnosis