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SiUS091601EA
Troubleshooting for FDMQ Series
Part 6 Service Diagnosis
152
6.12 Mismatching of Indoor Unit and Outdoor Unit
Error Code
UA
Error Decision
Conditions
Improper combination of indoor and outdoor units
Supposed
Causes
Defective indoor unit PCB
Indoor-outdoor unit transmission wiring error
Defective optional unit(s) wirings
Improper power supply wiring of indoor unit
Improper wiring of connecting wires between indoor/outdoor units
Troubleshooting
Connect the wirings correctly.
Replace the indoor unit PCB
(control PCB).
Normal
Connect the wirings correctly.
Check the power supply system
inside the indoor unit.
Could be incorrect wiring.
Check again.
YES
YES
NO
NO
Connect the indoor/outdoor
units correctly.
YES
YES
YES
YES
NO
NO
NO
Blink
(R24591)
Is the combination
of indoor/outdoor
units correct?
Do(es) the indoor
unit service monitor(s)
blink?
Are the wirings
between indoor unit and
outdoor unit correctly
connected?
Connect the wirings correctly.
NO
Is the optional
units power supply
connected from the
indoor unit terminal
block No.1 and
No.2?
Does the system conduct
normal operation?
Are the wirings
between indoor unit and
outdoor unit correctly
connected?
Turn off the power supply.
Then, turn on the power
supply to restart the system.
Continuously
ON or OFF
Is the voltage
between No.1 and
No.2 on the indoor
unit terminal block
208 - 230
VAC?
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Содержание FTX-N Series
Страница 14: ...SiUS091601EA 9 Part 1 General Information 1 Applicable Models 10 2 Functions 11 Part 1 General Information...
Страница 18: ...SiUS091601EA 13 Part 2 Specifications 1 Specifications 14 Part 2 Specifications...
Страница 132: ...Troubleshooting for FTX FVXS Series SiUS091601EA 127 Part 6 Service Diagnosis Reference Check No 01 Refer to P 181...
Страница 161: ...SiUS091601EA Troubleshooting for Outdoor Unit Part 6 Service Diagnosis 156 Reference Check No 14 Refer to P 185...
Страница 165: ...SiUS091601EA Troubleshooting for Outdoor Unit Part 6 Service Diagnosis 160 Reference Check No 18 Refer to P 190...
Страница 180: ...Troubleshooting for Outdoor Unit SiUS091601EA 175 Part 6 Service Diagnosis Reference Check No 19 Refer to P 191...
Страница 197: ...SiUS091601EA Check Part 6 Service Diagnosis 192 12 class 15 class Multimeter R23024 R25105 1 2 3 4 Multimeter...
Страница 198: ...Check SiUS091601EA 193 Part 6 Service Diagnosis 18 24 class R24538 1 2 3 4 Multimeter...
Страница 201: ...SiUS091601EA Check Part 6 Service Diagnosis 196 18 24 class R24539 DC DC W V U...
Страница 228: ...Piping Diagrams SiUS091601EA 223 Part 8 Appendix 1 2 Outdoor Unit RXL09QMVJU RXL12QMVJU 9 3D100008 3D100009A...
Страница 229: ...SiUS091601EA Piping Diagrams Part 8 Appendix 224 RXL15QMVJU RXL18UMVJU 3D100007 3D123368...
Страница 230: ...Piping Diagrams SiUS091601EA 225 Part 8 Appendix RXL24UMVJU 3D107985A...