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Daikin FTX-N Series Service Manual

Also see for FDMQ-R Series: ManualService manualService manualManual

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Contents
  1. Table Of Contents
  2. Table Of Contents
  3. Table Of Contents
  4. Table Of Contents
  5. Introduction
  6. Safety Cautions
  7. Warnings and Cautions Regarding Safety of Users
  8. Icons Used
  9. Revision History
  10. Part 1 General Information
  11. Applicable Models
  12. Functions
  13. Part 2 Specifications
  14. Specifications
  15. Part 3 Printed Circuit Board Connector Wiring Diagram
  16. Indoor Unit
  17. FTX15NMVJU
  18. FTX18/24UVJU
  19. FVXS09/12/15NVJU
  20. FDMQ12/18/24RVJU
  21. Wireless Remote Controller Receiver
  22. Wired Remote Controller
  23. Outdoor Unit
  24. RXL12QMVJU(9)
  25. RXL15QMVJU
  26. RXL18/24UMVJU
  27. Optional Adaptor
  28. Part 4 Functions and Control
  29. Common Functions
  30. Functions for FTX, FVXS Series
  31. COMFORT AIRFLOW Operation
  32. Fan Speed Control for Indoor Unit
  33. Program Dry Operation
  34. Automatic Cooling/Heating Changeover
  35. Thermostat Control
  36. NIGHT SET Mode
  37. ECONO Operation
  38. INTELLIGENT EYE Operation
  39. POWERFUL Operation
  40. Clock Setting
  41. WEEKLY TIMER Operation
  42. Other Functions
  43. Functions for FDMQ Series
  45. Clock and Calender Setting (With BRC1E73)
  46. Schedule Timer Operation (With BRC1E73)
  47. Drain Pump Control
  48. Hot Start Control (In Heating Operation Only)
  50. Thermistor Functions
  51. Control Specification
  52. Controls at Mode Changing/Start-up
  53. compressor protection function
  54. Discharge Pipe Temperature Control
  55. Input Current Control
  56. Freeze-up Protection Control
  57. Outdoor Fan Control
  58. Defrost Control
  59. Electronic Expansion Valve Control
  60. pressure equalizing control
  61. Malfunctions
  62. Part 5 Remote Controller
  63. Applicable Remote Controller
  64. ARC466A21
  65. ARC466A37
  66. ARC480A8
  67. BRC082A43
  68. BRC1E73
  69. operation lamp
  70. operation mode
  71. Part 6 Service Diagnosis
  72. General Problem Symptoms and Check Items
  73. Troubleshooting with LED
  75. Service Diagnosis
  76. ARC466 Series
  79. Error Codes and Description
  80. Troubleshooting for FTX, FVXS Series
  81. Freeze-up Protection Control/Heating Peak-cut Control
  82. Indoor Fan Motor (DC Motor) or Related Abnormality
  83. Thermistor or Related Abnormality
  84. Low-voltage Detection or Over-voltage Detection
  85. Signal Transmission Error (Between Indoor Unit and Outdoor Unit)
  86. Unspecified Voltage (Between Indoor Unit and Outdoor Unit)
  87. Troubleshooting for FDMQ Series
  88. Drain Level Control System Abnormality
  90. Indoor Fan PCB Abnormality
  91. Humidifier or Related Abnormality
  93. Remote Controller Thermistor Abnormality
  95. Signal Transmission Error (Between Indoor and Outdoor Unit)
  96. 6.10 Signal Transmission Error (Between Indoor Unit and Remote Controller
  97. Signal Transmission Error (Between MAIN/SUB Remote Controllers)
  98. Mismatching of Indoor Unit and Outdoor Unit
  99. Troubleshooting for Outdoor Unit
  100. OL Activation (Compressor Overload)
  101. Compressor Lock
  102. dc fan lock
  103. Input Overcurrent Detection
  104. Four Way Valve Abnormality
  106. High Pressure Control in Cooling
  107. 7.9 System Shutdown due to Temperature Abnormality in the Compressor
  108. Compressor Sensor System Abnormality
  109. Position Sensor Abnormality
  110. Thermistor or Related Abnormality (Outdoor Unit)
  111. Electrical Box Temperature Rise
  112. Radiation Fin Temperature Rise
  113. Output Overcurrent Detection
  114. Signal Transmission Error on Outdoor Unit PCB
  115. Check
  116. Indoor Fan Motor Connector Check
  117. Power Supply Waveform Check
  118. Four Way Valve Performance Check
  119. Inverter Analyzer Check
  120. Rotation Pulse Check on the Outdoor Unit PCB
  121. Installation Condition Check
  122. Outdoor Fan System Check
  123. Power Module Check
  124. Part 7 Trial Operation and Field Settings
  125. Pump Down Operation
  126. Forced Cooling Operation
  127. Trial Operation
  128. Field Settings for FTX, FVXS Series
  129. When 2 Units are Installed in 1 Room
  130. Jumper and Switch Settings
  131. Field Settings for FDMQ Series
  132. Overview of Field Settings
  133. MAIN/SUB and Address Setting for Wireless Remote Controller
  134. Field Settings for Outdoor Unit
  135. Drain Pan Heater
  136. Silicone Grease on Power Transistor/Diode Bridge
  137. Part 8 Appendix
  138. Piping Diagrams
  140. Wiring Diagrams
  142. Operation Limit
Daikin FTX-N Series Service Manual Manual pdf 140 page image
Troubleshooting for FTX, FVXS Series SiUS091601EA135 Part 6 Service Diagnosis5.6 Signal Transmission Error (Between Indoor Unit andOutdoor Unit)Error Code U4Method of ErrorDetectionThe signal transmission data received from the outdoor unit is checked whether it is normal.Error DecisionConditionsThe data sent from the outdoor unit cannot be received normally, or the content of the data isabnormal.SupposedCauses Power supply voltage not as specified Reduction of power supply voltage Wiring error Breaking of the connection wires between the indoor and outdoor units (wire No. 3) Defective outdoor unit PCB Short circuit inside the fan motor winding Defective indoor unit PCB Disturbed power supply waveform
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This manual is suitable for:
FDMQ-R SeriesFDMQ12RVJUFDMQ18RVJUFDMQ24RVJUFTX-N SeriesFTX-U SeriesFTX09NMVJUFTX12NMVJUFTX15NMVJUFTX18UVJUFTX24UVJUFVXS-V SeriesFVXS09NVJUFVXS12NVJUFVXS15NVJURXL09QMVJURXL12QMVJURXL12QMVJU9RXL15QMVJURXL18UMVJURXL24UMVJU
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