Daikin FLKS25BVMB

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SiBE05-513A Indoor Unit

Removal Procedure 135

Remove the two screws

to remove fan motor

fixtures.

Remove the bearing

fixture.

Loosen the shaft

supporting section

using a hexagonal

wrench (for M6) to

remove the fan motor.

Step Procedure Points

Main Page

Table of Contents3
Introduction6
- Safety Cautions6
Part 1 List of Functions10
List of Functions11
Part 2 Specifications14
Specifications15
- Cooling Only15
- Heat Pump17
Part 3 Printed Circuit Board Connector Wiring Diagram20
Printed Circuit Board Connector Wiring Diagram21
- Indoor Unit21
- Outdoor Unit23
Part 4 Function and Control26
Main Functions27
- Frequency Principle27
- Auto-Swing29
- Fan Speed Control for Indoor Units30
- Programme Dry Function31
- Automatic Operation32
- Thermostat Control33
- NIGHT SET Mode34
- HOME LEAVE Operation35
- Inverter POWERFUL Operation36
- Other Functions37
Function of Thermistor38
- Heat Pump Model38
- Cooling Only Model39
Control Specification40
- Mode Hierarchy40
- Frequency Control41
- Controls at Mode Changing / Start-Up43
- Compressor Protection Function44
- Discharge Pipe Control44
- Input Current Control45
- Freeze-Up Protection Control46
- Heating Peak-Cut Control46
- Fan Control47
- Liquid Compression Protection Function 247
- Defrost Control48
- Electronic Expansion Valve Control49
- Malfunctions52
- Forced Operation Mode53
- Additional Function53
- Facility Setting Jumper (Cooling at Low Outdoor Temperature)54
Part 5 System Configuration56
System Configuration57
Instruction58
- Safety Precautions58
  - Installation Site59
  - Electrical Work59
- Names of Parts60
- Remote Controller62
- Preparation before Operation63
- AUTO · DRY · COOL · HEAT · FAN Operation66
- Adjusting the Air Flow Direction68
- POWERFUL Operation70
- OUTDOOR UNIT SILENT Operation71
- HOME LEAVE Operation72
- TIMER Operation74
- Care and Cleaning76
  - Air Filter77
  - Before a Long Idle Period78
- Troubleshooting79
Part 6 Service Diagnosis84
Caution for Diagnosis85
Problem Symptoms and Measures86
Service Check Function87
Troubleshooting90
- Error Codes and Description90
- Indoor Unit PCB Abnormality91
- Freeze-Up Protection Control or High Pressure Control92
- Fan Motor (AC Motor) or Related Abnormality94
- Thermistor or Related Abnormality (Indoor Unit)95
- Signal Transmission Error (between Indoor and Outdoor Unit)96
- Unspecified Voltage (between Indoor and Outdoor Units)97
- Outdoor Unit PCB Abnormality98
- OL Activation (Compressor Overload)99
- Compressor Lock100
- DC Fan Lock101
- Input over Current Detection102
- Four Way Valve Abnormality103
- Discharge Pipe Temperature Control105
- High Pressure Control in Cooling106
- Compressor System Sensor Abnormality108
- Position Sensor Abnormality109
- DC Voltage / Current Sensor Abnormality110
- Thermistor or Related Abnormality (Outdoor Unit)111
- Electrical Box Temperature Rise113
- Radiation Fin Temperature Rise115
- Output over Current Detection117
- Insufficient Gas119
- Over-Voltage Detection121
Check122
- How to Check122
Part 7 Removal Procedure130
Indoor Unit131
- Removal of the Air Filter / Front Grille131
- Removal of the Front Panel134
- Removal of the Horizontal Blade136
- Removal of the Signal Receiver Unit / Swing Motor137
- Removal of the Discharge Grille138
- Removal of the Drain Pan139
- Removal of the Electrical Box / PCB140
- Removal of the Fan Rotor / Fan Motor143
- Removal of the Heat Exchanger145
Outdoor Unit147
- Removal of Panels and Fan Motor147
- Removal of Electrical Box154
- Removal of Reactor and Partition Plate156
- Removal of Sound Blanket158
- Removal of Four Way Valve160
- Removal of Compressor162
- Removal of PCB164
Part 8 Others168
Others169
- Test Run from the Remote Controller169
- Jumper Settings170
Part 9 Appendix172
Piping Diagrams173
- Indoor Units173
- Outdoor Units174
Wiring Diagrams176
- Indoor Units176
- Outdoor Units176
Index178
Drawings & Flow Charts182

Daikin FLKS25BVMB - Page 144

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