![background image](http://html1.mh-extra.com/html/daikin/ftks50bvmb/ftks50bvmb_service-manual_501473313.webp)
SiEN18-622
Troubleshooting
301
Part 8
Troubleshooting
1.
Caution for Diagnosis .......................................................................303
1.1
Troubleshooting with the Operation Lamp (RA Indoor Unit) ................303
1.2
Troubleshooting with the LED on the SkyAir Indoor Unit .....................304
1.3
Troubleshooting with the LED on the Outdoor Unit..............................305
1.4
Troubleshooting with the LED on the BP Unit ......................................306
2.
Service Check Function....................................................................307
2.1
RA Indoor Unit Infrared Remote Control ..............................................307
2.2
SkyAir Indoor Unit INSPECTION/TEST Button....................................311
2.3
SkyAir Indoor Unit Wired Remote Control............................................312
2.4
SkyAir Indoor Unit Infrared Remote Control.........................................313
2.5
SkyAir Indoor Unit Error Codes and LED Indication.............................315
2.6
Malfunction Code Indication by Outdoor Unit PCB ..............................316
3.
List of Malfunction Code ...................................................................320
4.
Troubleshooting for RA Indoor Unit ..................................................322
4.1
Indoor Unit PCB Abnormality ...............................................................322
4.2
Freeze-up Protection Control or High Pressure Control.......................323
4.3
Fan Motor or Related Abnormality .......................................................325
4.4
Thermistor or Related Abnormality (Indoor Unit)..................................328
4.5
Shutter Drive Motor / Shutter Limit Switch Abnormality .......................329
4.6
Check ...................................................................................................330
5.
Troubleshooting for SkyAir Indoor Unit.............................................333
5.1
Indoor Unit PCB Abnormality ...............................................................333
5.2
Malfunction of Drain Water Level System (Float Type) ........................334
5.3
Malfunction of Drain System ................................................................336
5.4
Indoor Unit Fan Motor Lock..................................................................337
5.5
Malfunction of Indoor Unit Fan Motor ...................................................338
5.6
Swing Flap Motor Malfunction / Lock ...................................................340
5.7
Malfunction of Capacity Setting............................................................342
5.8
Malfunction of Heat Exchanger Thermistor (R2T) ................................343
5.9
Malfunction of Heat Exchanger Thermistor (R3T)................................344
5.10 Malfunction of Suction Air Thermistor ..................................................345
5.11 Malfunction of Remote Control Thermistor...........................................346
5.12 Transmission Error (between Indoor Unit and Remote Control) ..........347
5.13 Transmission Error (between Main and Sub Remote Control).............348
5.14 Malfunction of Field Setting Switch ......................................................349
5.15 Check ...................................................................................................350
6.
Troubleshooting for BP Unit .............................................................352
6.1
Malfunction of Electronic Expansion Valve ..........................................352
6.2
Faulty BP Unit PCB ..............................................................................353
6.3
Faulty BP Liquid or Gas Pipe Thermistor .............................................354
6.4
Transmission Error between Indoor Unit and BP Unit..........................355
6.5
Transmission Error between Outdoor Unit and BP Unit.......................357
6.6
Check ...................................................................................................358
7.
Troubleshooting for Outdoor Unit .....................................................359
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 ...