Unspecified Voltage (Between Indoor Unit And Outdoor Unit) - Daikin MKS-T Series Service Manual

SiSG121917E
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
Detection indoor/outdoor transmission signal.
Error Decision The pair type and multi type are interconnected.
Conditions
Supposed
 Wrong models interconnected
Causes  Wrong wiring of connecting wires
 Wrong indoor unit PCB or outdoor unit PCB mounted
 Defective indoor unit PCB
 Defective outdoor unit PCB
Troubleshooting
Check the combination of the
indoor and outdoor unit.
Part 6 Service Diagnosis
Troubleshooting for Wall Mounted and LSP Duct Type Indoor Unit
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
NO
OK?
YES
Are the
NO
connecting wires
connected properly?
YES
Match the compatible models.
Correct the connection.
Check the part numbers of the
indoor and outdoor unit PCB
with the Parts List.
If not matched, change for the
correct PCB.
(R23289)
126