Daikin ATX20JV1B Specifications Page 74
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- TROUBLESHOOTING
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Troubleshooting SiBE041010
64 Service Diagnosis
4.6 Signal Transmission Error (between Indoor and Outdoor
Unit)
Remote
Controller
Display
U4
Method of
Malfunction
Detection
The data received from the outdoor unit in indoor unit-outdoor unit signal transmission is
checked whether it is normal.
Malfunction
Decision
Conditions
The data sent from the outdoor unit cannot be received normally, or the content of the data is
abnormal.
Supposed
Causes
Wiring error
Breaking of the connection wires between the indoor and outdoor units (wire No. 3)
Defective outdoor unit PCB
Defective indoor unit PCB
Disturbed power supply waveform
Troubleshooting
Check No.10
Refer to P.94
Check No.10
Check the power supply
waveform.
Check the voltage of the
connection wires on the indoor
terminal board between No. 1
and No. 3, and between No. 2
and No. 3.
YES
YES
Replace the indoor unit PCB.
Locate the cause of the
disturbance of the power
supply waveform, and correct
it.
NO
(R12023)
NO
YES
YES
NO
NO
Caution
Correct the indoor unit-outdoor
unit connection wires.
Diagnose the outdoor unit
PCB.
∗ Set the fan operation by
remote controller, and cancel
the standby electricity saving
function before you check the
LED A.
∗ Wait at least for 7 sec. after
turning on the power.
Replace the connection wires
between the indoor and
outdoor units.
Is LED A blinking?
Properly insulated?
Is there any disturbance?
Is there any wiring error?
Check the indoor unit-outdoor unit
connection wires.
Check the LED A on the outdoor
unit PCB.
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
- Inverter Pair 1
- Wall Mounted Type 2
- J-Series 2
- Table of Contents ii 3
- Table of Contents iv 5
- 1. Introduction 6
- 1.2 Used Icons 10
- List of Functions 11
- 1. Functions 12
- Specifications 13
- 1. Specifications 14
- 50 Hz, 230 V 15
- Printed Circuit Board 18
- Connector Wiring Diagram 18
- 1.1 Indoor Unit 19
- PCB(2): Display PCB 20
- PCB Detail PCB(1): Filter PCB 22
- PCB(2): Main PCB 22
- Function and Control 23
- 1. Main Functions 24
- 1.2 Airflow Direction Control 26
- (R11975) 27
- 1.4 Program Dry Operation 28
- 1.5 Automatic Operation 29
- 1.6 Thermostat Control 30
- 1.7 NIGHT SET Mode 31
- 1.8 ECONO Operation 32
- (R11976) 33
- 2. Operation OFF 33
- 3. POWERFUL operation is OFF 33
- 1.10 Other Functions 34
- 2. Function of Thermistor 35
- 3. Control Specification 36
- 3.2 Frequency Control 37
- 3.3.1 Preheating Operation 39
- 3.3.4 3-minute Standby 40
- 3.5 Input Current Control 41
- 3.7 Heating Peak-cut Control 42
- 3.8 Outdoor Fan Control 43
- 3.10 Defrost Control 44
- Function and Control 35 45
- 36 Function and Control 46
- Function and Control 37 47
- 3.12 Malfunctions 48
- 3.13 Forced Operation Mode 49
- Operation Manual 50
- 1. System Configuration 51
- 2. Operation Manual 52
- To start operation 53
- To stop operation 53
- Operation Manual SiBE041010 54
- 44 Operation Manual 54
- To adjust the horizontal 55
- (louvers) 55
- 〈HEAT〉 The flap will go down 56
- POWERFUL Operation 57
- ECONO Operation 58
- TIMER Operation 59
- To use ON TIMER operation 60
- Service Diagnosis 61
- 1. Caution for Diagnosis 62
- TIMER CANCEL button 64
- < ARC433 Series > 64
- Service Diagnosis 55 65
- 56 Service Diagnosis 66
- 4. Troubleshooting 67
- Troubleshooting SiBE041010 68
- 58 Service Diagnosis 68
- Model Type Connector 68
- SiBE041010 Troubleshooting 69
- Service Diagnosis 59 69
- Troubleshooting 70
- Check No.06 70
- Refer to P.92 70
- Service Diagnosis 61 71
- (R12038) 72
- Service Diagnosis 63 73
- 64 Service Diagnosis 74
- Service Diagnosis 65 75
- 66 Service Diagnosis 76
- Service Diagnosis 67 77
- 4.10 Compressor Lock 78
- 4.11 DC Fan Lock 79
- 70 Service Diagnosis 80
- Service Diagnosis 71 81
- 72 Service Diagnosis 82
- (R11950) 83
- 74 Service Diagnosis 84
- Service Diagnosis 75 85
- 76 Service Diagnosis 86
- Check No.29 87
- Refer to P.99 87
- 78 Service Diagnosis 88
- Service Diagnosis 79 89
- 80 Service Diagnosis 90
- Service Diagnosis 81 91
- Refer to P.93 92
- Check No.09 92
- Refer to P.94 92
- Service Diagnosis 83 93
- 84 Service Diagnosis 94
- Service Diagnosis 85 95
- 86 Service Diagnosis 96
- 4.23 Refrigerant Shortage 97
- Check No.04 98
- Refer to P.90 98
- Service Diagnosis 89 99
- 5. Check 100
- Check No.05 101
- Resistance range 102
- Check No.07 103
- Check No.08 103
- Check SiBE041010 104
- 94 Service Diagnosis 104
- 5.1.9 Power Module Check 105
- 96 Service Diagnosis 106
- SiBE041010 Check 107
- Service Diagnosis 97 107
- 98 Service Diagnosis 108
- (R12025) 109
- Removal Procedure 110
- 1. Indoor Unit 111
- (R11959) 114
- Fan guard 114
- 1.3 Removal of Front Panel 115
- 1.4 Removal of Front Grille 116
- Left Center Right 117
- (R11268) 118
- Earth wire 119
- Bottom frame 120
- Vertical blade ASSY 120
- Shield plate (2) 121
- Indoor Unit SiBE041010 122
- 112 Removal Procedure 122
- Step Procedure Points 122
- Wooden base 125
- Drain hose 125
- Extension drain hose 125
- Connecting wires 125
- Gas piping 126
- Liquid piping 126
- Auxiliary piping 126
- Piping fixture 126
- (R8041) (R11269) 127
- 1.8 Removal of Fan Rotor 128
- Fan rotor 129
- Fan motor 129
- 120 Removal Procedure 130
- 1.9 Exchange of Drain Hose 131
- 2. Outdoor Unit 132
- Top panel 133
- Front panel 133
- Discharge grille 133
- Projection (rear side) 133
- Lead wire Outdoor fan 134
- Guard net 135
- Right side panel 136
- Discharge pipe thermistor 137
- Electrical box 138
- Terminal board 139
- Control PCB 139
- BrownWhite 139
- (R11962) 140
- (R12021) 141
- 2.4 Removal of Sound Blanket 142
- SiBE041010 Outdoor Unit 143
- Removal Procedure 133 143
- Procedure Points 143
- 2.5 Removal of Four Way Valve 144
- Removal Procedure 135 145
- Outdoor Unit SiBE041010 146
- 136 Removal Procedure 146
- 2.6 Removal of Compressor 147
- SiBE041010 148
- 138 Others 148
- 1. Others 149
- 1.2 Field Settings 150
- SiBE041010 Others 151
- Others 141 151
- Appendix 152
- 1. Piping Diagrams 153
- 1.2 Outdoor Unit 154
- 2. Wiring Diagrams 155
- Cautions on product corrosion 156
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