Daikin FHYB45FV1 [4/244] Troubleshooting based on equipment condition 1
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Daikin FHYB45FV1 [4/244] Troubleshooting based on equipment condition 1

Daikin FHYC60KVE [4/244] Troubleshooting based on equipment condition 1
Si-71A
Table of Contents iii
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1. Maintenance Inspections ......................................................................77
1.1 Optimal Operation Condition ..................................................................77
2. How to Handle Request for Maintenance .............................................80
2.1 Flow Chart..............................................................................................80
3. Troubleshooting Based on Equipment Condition..................................81
3.1 Troubleshooting Based on Equipment Condition...................................81
3.2 Equipment does not Operate .................................................................82
3.3 Fan Operates, but Compressor does not...............................................83
3.4 Cooling/Heating Operation Starts but Stops Immediately......................84
3.5 After Equipment Shuts Down, It cannot be Restarted for a While..........85
3.6 Equipment Operates but does not Provide Cooling. ..............................86
3.7 Equipment Operates but does not Provide Heating...............................87
3.8 Equipment Discharges White Mist .........................................................88
3.9 Equipment Produces Loud Noise or Shakes..........................................89
3.10 Equipment Discharges Dust...................................................................90
3.11 Remote Controller LCD Displays "88"....................................................91
4. Procedure of Self-Diagnosis by Remote Controller ..............................92
4.1 The INSPECTION/TEST Button.............................................................92
4.2 Self-Diagnosis by Wired Remote Controller...........................................93
4.3 Fault Diagnosis by Wireless Remote Controller.....................................94
4.4 Remote Controller Display Malfunction Code and Contents..................96
5. Procedure of Self-Diagnosis by LED.....................................................97
5.1 Troubleshooting by LED on The Indoor Unit’s .......................................97
5.2 Troubleshooting by LED on The Outdoor Unit’s PC Board....................97
6. Troubleshooting by Remote Controller Display / LED Display..............98
6.1 Explanation for Symbols.........................................................................98
6.2 Malfunction Code and LED Display Table..............................................99
6.3 Failure of Indoor Unit PC Board ...........................................................101
6.4 Malfunction of Drain Water Level System (Float Type)........................102
6.5 Indoor Unit Fan Motor Lock..................................................................103
6.6 Swing Flap Motor Malfunction / Lock ...................................................104
6.7 Failure of Capacity Setting ...................................................................105
6.8 Malfunction of Heat Exchange Temperature Sensor System ..............106
6.9 Malfunction of Suction Air Temperature Sensor System......................107
6.10 Actuation of Safety Device ...................................................................108
6.11 High Pressure System (HPS) Malfunction ...........................................109
6.12 Low Pressure System (LPS) Malfunction.............................................110
6.13 Malfunction of Electronic Expansion Valve ..........................................111
6.14 Discharge Pipe Temperature Malfunction............................................112
6.15 Malfunction of High Pressure Switch....................................................113
6.16 Malfunction of Outdoor Temperature Sensor System..........................114
6.17 Malfunction of Discharge Pipe Temperature Sensor System...............115
6.18 Malfunction of Heat Exchanger Temperature Sensor System .............116
6.19 Lack of Gas Malfunction.......................................................................117
6.20 Reverse Phase.....................................................................................118
6.21 Malfunction of Transmission (Between Indoor and Outdoor Unit)........119
6.22 Malfunction of Transmission
(Between Indoor Unit and Remote Controller) .....................................121
6.23 Transmission Error Between Main Remote Controller
and Sub Remote Controller..................................................................122

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