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Troubleshooting for Outdoor Unit
SiEN18-622
384
Troubleshooting
7.23 High Voltage of Capacitor in Main Inverter Circuit
Remote Control
Display
P1
Applicable
Models
All outdoor unit models
Method of
Malfunction
Detection
Malfunction is detected according to the voltage waveform of main circuit capacitor built in the
inverter.
Malfunction
Decision
Conditions
When the aforementioned voltage waveform becomes identical with the waveform of the power
supply open phase.
Supposed
Causes
Defect of main circuit capacitor
Improper main circuit wiring
Defect of outdoor unit PCB (A1P)
Troubleshooting
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Is the "C4"
properly connected?
Check for the connection of
the main circuit capacitor "C4".
If not connected, connect the "C4".
YES
NO
Replace the outdoor unit PC board
(A1P).
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 ...