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Troubleshooting for Outdoor Unit
SiEN18-622
386
Troubleshooting
7.25 Faulty Combination of Inverter and Fan Driver
Remote Control
Display
PJ
Applicable
Models
AII outdoor unit models
Method of
Malfunction
Detection
Check the communication state between inverter PCB and control PCB by micro-computer.
Malfunction
Decision
Conditions
When the communication data about inverter PCB type is incorrect.
Supposed
Causes
Mismatching of inverter PCB
Faulty field setting
Troubleshooting
∗
Refer to “Field Setting from Outdoor Unit” on P152.
(Q0441)
After resetting, restart.
YES
YES
YES
Is the
PCB type
correct?
Is the field
setting when
the PCB was
replaced
correct?
Replace PCB by the correct one.
Replace the PCB.
NO
Was the PCB
replaced?
NO
Correct field setting.
NO
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Summary of Contents for FTKS50BVMB
Page 1: ...SiEN18 622 E Series Service Manual Applied Models zSuper Multi Plus Cooling Only Heat Pump ...
Page 105: ...Refrigerant Flow for Each Operation Mode SiEN18 622 92 Refrigerant Circuit ...
Page 157: ...Indoor Unit SkyAir Models SiEN18 622 144 Function ...
Page 312: ...SiEN18 622 Ceiling Mounted Cassette Type System Configuration 300 ...
Page 424: ...Method of Replacing The Inverter s Power Transistors Modules SiEN18 622 412 Troubleshooting ...
Page 446: ...Wiring Diagrams SiEN18 622 434 Appendix ...
Page 452: ...SiEN18 622 vi Index ...