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Daikin FTXS20K2V1B Service Manual

Also see for ARXS25L2V1B: Installation manual

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Contents
  1. Table Of Contents
  2. Table Of Contents
  3. Table Of Contents
  4. safety cautions
  5. list of functions
  6. Functions
  7. part 2 specifications
  8. Specifications
  9. Part 3 Printed Circuit Board Connector Wiring Diagram
  10. Indoor Unit
  11. Outdoor Unit
  12. RXS20/25L3V1B, ARXS25L3V1B
  13. Part 4 Functions and Control
  14. main functions
  15. airflow direction control
  16. fan speed control for indoor unit
  17. program dry operation
  18. automatic operation
  19. thermostat control
  20. night set mode
  21. intelligent eye operation
  22. inverter powerful operation
  23. clock setting
  24. weekly timer operation
  25. other functions
  26. Thermistor Functions
  27. control specification
  28. frequency control
  29. Controls at Mode Changing / Start-up
  30. compressor protection function
  31. Discharge Pipe Temperature Control
  32. input current control
  33. Freeze-up Protection Control
  34. outdoor fan control
  35. defrost control
  36. electronic expansion valve control
  37. pressure equalizing control
  38. Malfunctions
  39. part 5 remote controller
  40. remote controller
  41. mode button
  42. Part 6 Service Diagnosis
  43. general problem symptoms and check items
  44. troubleshooting with led
  45. service diagnosis
  46. troubleshooting
  47. indoor unit pcb abnormality
  48. Freeze-up Protection Control / Heating Peak-cut Control
  49. Fan Motor (DC Motor) or Related Abnormality
  50. Thermistor or Related Abnormality (Indoor Unit)
  51. refrigerant shortage
  52. Low-voltage Detection or Over-voltage Detection
  53. Signal Transmission Error (Between Indoor Unit and Outdoor Unit)
  54. Unspecified Voltage (Between Indoor Unit and Outdoor Unit)
  55. outdoor unit pcb abnormality
  56. OL Activation (Compressor Overload)
  57. compressor lock
  58. dc fan lock
  59. input overcurrent detection
  60. four way valve abnormality
  62. high pressure control in cooling
  63. compressor system sensor abnormality
  64. position sensor abnormality
  65. DC Voltage / Current Sensor Abnormality
  66. Thermistor or Related Abnormality (Outdoor Unit)
  67. electrical box temperature rise
  68. radiation fin temperature rise
  69. output overcurrent detection
  70. thermistor resistance check
  71. Indoor Fan Motor Connector Output Check
  72. power supply waveforms check
  73. four way valve performance check
  74. inverter analyzer check
  75. rotation pulse check on the outdoor unit pcb
  76. installation condition check
  77. outdoor fan system check
  78. power module check
  79. Part 7 Trial Operation and Field Settings
  80. pump down operation
  81. forced cooling operation
  82. trial operation
  83. field settings
  84. standby electricity saving
  85. jumper settings
  86. Silicone Grease on Power Transistor / Diode Bridge
  87. Part 8 Appendix
  88. piping diagrams
  90. Wiring Diagrams
Daikin FTXS20K2V1B Service Manual Manual pdf 97 page image
SiBE041134EB TroubleshootingService Diagnosis 874.20 DC Voltage / Current Sensor AbnormalityError Code H8Method of ErrorDetectionDC voltage or DC current sensor abnormality is identified based on the compressor runningfrequency and the input current.Error DecisionConditions„ If the error repeats, the system is shut down.„ Reset condition: Continuous run for about 60 minutes without any other errorSupposedCauses„ Defective outdoor unit PCBTroubleshootingReplace the outdoor unit PCB (main PCB).CautionBe sure to turn off the power switch before connecting or disconnectingconnectors, or parts may be damaged.
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This manual is suitable for:
ARXS25L2V1BARXS25L3V1BATXS25K2V1BATXS25K3V1BFTXS20K2V1BFTXS20K3V1BFTXS25K2V1BFTXS25K3V1BRXS20K2V1BRXS20K3V1BRXS20L2V1BRXS20L3V1BRXS25K2V1BRXS25K3V1BRXS25L2V1BRXS25L3V1B
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