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SiUS041501E
Troubleshooting
Service Diagnosis
70
4.8
Unspecified Voltage (Between Indoor Unit and Outdoor
Unit)
Error Code
UA
Method of Error
Detection
The supply power is detected for its requirements (pair type is different from multi type) by the
indoor / outdoor transmission signal.
Error Decision
Conditions
The pair type and multi type are interconnected.
Supposed
Causes
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
Troubleshooting
(R20435)
Caution
NO
YES
YES
NO
Match the compatible models.
OK?
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.
Are the
connecting wires connected
property?
Check the
combination of the
indoor
and outdoor unit.
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Summary of Contents for FTKN09NMVJU
Page 12: ...SiUS041501E 1 List of Functions Part 1 List of Functions 1 Functions 2...
Page 59: ...SiUS041501E Remote Controller 48 Part 5 Remote Controller 1 Cooling Only 49 2 Heat Pump 51...
Page 65: ...SiUS041501E Service Diagnosis 54 5 13 Power Module Check 100...
Page 132: ...Revision History Month Year Version Revised contents 03 2015 SiUS041501E First edition...