![background image](http://html1.mh-extra.com/html/daikin/ftks50bvmb/ftks50bvmb_service-manual_501473397.webp)
SiEN18-622
Troubleshooting for Outdoor Unit
Troubleshooting
385
7.24 Malfunction of Inverter Radiating Fin Temperature Rise
Sensor
Remote Control
Display
P4
Applicable
Models
AII outdoor unit models
Method of
Malfunction
Detection
Resistance of radiation fin thermistor is detected when the compressor is not operating.
Malfunction
Decision
Conditions
When the resistance value of thermistor becomes a value equivalent to open or short circuited
status.
H
Malfunction is not decided while the unit operation is continued.
"P4" will be displayed by pressing the inspection button.
Supposed
Causes
Defect of radiator fin temperature sensor
Defect of outdoor unit PC board (A1P)
Troubleshooting
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Power OFF
Power ON
Replace the
compressor.
YES
YES
NO
NO
Disconnect the cable from the
compressor, and then check
the compressor for the
insulation resistance.
Remove and insert the fin
thermistor connector [X111A].
Turn ON the
power supply, and then check whether
or not the malfunction
recurs.
End
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 ...