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Si38-606 Troubleshooting by Indication on the Remote Controller
Troubleshooting 167
2.43
“
U4
”
Malfunction of Transmission between Indoor Units
Remote
Controller
Display
U4
Applicable
Models
All model of indoor unit
RXM8, 10M
Method of
Malfunction
Detection
Microcomputer checks if transmission between indoor and outdoor units is normal.
Malfunction
Decision
Conditions
When transmission is not carried out normally for a certain amount of time
Supposed
Causes
Indoor to outdoor,outdoor to outdoor transmission wiring F1, F2 disconnection, short circuit
or wrong wiring
Outdoor unit power supply is OFF
System address doesn’t match
Defect of indoor unit PC board
Defect of outdoor unit PC board
- Cooling Only 1
- R-22 Cooling Only 2
- Table of Contents iii 4
- 1. Introduction 6
- 1.1.3 Inspection after Repair 8
- 1.1.4 Using Icons 9
- 1.1.5 Using Icons List 9
- 1.2 PREFACE 10
- Introduction Si38-606 11
- General Information 12
- Indoor Units 13
- Outdoor Units 13
- 2. External Appearance 14
- 2.2 Outdoor Units 15
- 3. Capacity Range 16
- Capacity Range Si38-606 17
- 6 General Information 17
- Specifications 18
- 1. Specifications 19
- 1.2 Indoor Units 20
- ()()()() 21
- Specifications Si38-606 25
- 14 Specifications 25
- Si38-606 Specifications 26
- Specifications 15 26
- 16 Specifications 27
- Specifications 17 28
- 18 Specifications 29
- Specifications 19 30
- 20 Specifications 31
- Ceiling Mounted Built-in Type 32
- 24 Specifications 35
- Specifications 25 36
- 26 Specifications 37
- Ceiling Mounted Duct Type 39
- Ceiling Suspended Type 40
- Wall Mounted Type 41
- Floor Standing Type 43
- Concealed Floor Standing Type 45
- 36 Specifications 47
- Refrigerant Circuit 48
- 1. Refrigerant Circuit 49
- RXM8, 10M 50
- 2. Functional Parts Layout 51
- Cooling Operation 52
- Cooling Oil Return Operation 53
- Function 54
- 1. Operation Mode 55
- 2. Basic Control 56
- 2.2 Compressor PI Control 57
- Fan Steps 59
- 3. Special Control 60
- 3.2 Oil Return Operation 61
- 3.4 Restart Standby 63
- 3.5 Stopping Operation 64
- 4. Protection Control 66
- [In cooling operation] 67
- Si38-606 Protection Control 68
- Function 57 68
- Protection Control Si38-606 69
- 58 Function 69
- 4.6 Crankcase Heater Control 70
- 5. Other Control 71
- 5.2 Demand Operation 72
- 6.1 Drain Pump Control 73
- Remote Controller: 74
- Function 65 76
- 66 Function 77
- 6.4 Freeze Prevention 78
- 68 Function 79
- Test Operation 80
- 1. Test Operation 81
- 1.1.3 Check Operation 82
- Test Operation Si38-606 83
- 72 Test Operation 83
- Outdoor unit PC board 85
- 3. Field Setting 86
- 76 Test Operation 87
- 78 Test Operation 89
- Test Operation 79 90
- F2 T1 T2 91
- GROUP NO 94
- MODE NO 94
- FIELD SET 94
- 84 Test Operation 95
- (Local Setting) 96
- DS2-2 OFF ON 98
- DS2-3 ON ON 98
- DS2-4 OFF OFF 98
- Si38-606 Field Setting 100
- Test Operation 89 100
- Test Operation 91 102
- Field Setting Si38-606 103
- 92 Test Operation 103
- (1 cycle before) 104
- (2 cycle before) 104
- (Fixed to 0) 104
- Refer page 104
- 9 797997 105
- 977 7979 105
- 977 7997 105
- Test Operation 95 106
- Test Operation 97 108
- : ON 109
- : OFF 109
- Test Operation 99 110
- 100 Test Operation 111
- 8:ON 9:BLINKING 3:OFF) 112
- CHECK OPERATION FUNCTION 112
- 102 Test Operation 113
- Troubleshooting 114
- Si38-606 115
- 104 Troubleshooting 115
- 106 Troubleshooting 117
- Troubleshooting 107 118
- 108 Troubleshooting 119
- Troubleshooting 109 120
- Operation Button 121
- Troubleshooting 111 122
- Troubleshooting 113 124
- 116 Troubleshooting 127
- . : Blink 128
- Controller 129
- Indoor Unit: PC Board Defect 130
- System (S1L, 33H) 131
- 122 Troubleshooting 133
- Troubleshooting 123 134
- Expansion Valve (20E) 136
- Troubleshooting 127 138
- 128 Troubleshooting 139
- Exchanger 140
- 130 Troubleshooting 141
- Suction Air 142
- Remote Controller 143
- Troubleshooting 133 144
- 134 Troubleshooting 145
- Troubleshooting 135 146
- Compressor Motor Lock 147
- Troubleshooting 137 148
- 138 Troubleshooting 149
- 140 Troubleshooting 151
- Temperature 153
- Refrigerant Overcharged 154
- 144 Troubleshooting 155
- Air (R1T) 156
- Current Sensor Malfunction 157
- Thermistor (R31 or 32T) 158
- Suction Pipe 159
- Outdoor Unit Heat Exchanger 160
- 150 Troubleshooting 161
- Troubleshooting 151 162
- 152 Troubleshooting 163
- Temperature Rise 164
- 154 Troubleshooting 165
- Troubleshooting 155 166
- 156 Troubleshooting 167
- Inverter and Control PC Board 168
- Troubleshooting 159 170
- Temperature Rise Sensor 171
- Troubleshooting 161 172
- 162 Troubleshooting 173
- Reverse Phase, Open Phase 174
- 164 Troubleshooting 175
- Check Operation not Executed 177
- Troubleshooting 167 178
- Controller and Indoor Unit 180
- 170 Troubleshooting 181
- SUB Remote Controllers 183
- Troubleshooting 173 184
- Troubleshooting 175 186
- Troubleshooting 177 188
- Troubleshooting 179 190
- Undefined 191
- PC Board Defect 192
- 182 Troubleshooting 193
- Centralized Control 194
- Troubleshooting 185 196
- 186 Troubleshooting 197
- Troubleshooting 189 200
- 192 Troubleshooting 203
- 5.1 Operation Lamp Blinks 204
- Single Blink) 206
- Troubleshooting 197 208
- Double Blink) 209
- Troubleshooting 199 210
- 200 Troubleshooting 211
- Appendix 212
- 1. Piping Diagrams 213
- 1.2 Indoor Unit 214
- 2. Wiring Diagrams 215
- 2.2 Field Wiring 216
- 2.3 Indoor Unit 217
- FXC40L / 50L / 80L / 125LVE 218
- Wiring Diagrams Si38-606 219
- 208 Appendix 219
- FXK25L / 32L / 40L / 63LVE 220
- 210 Appendix 221
- Si38-606 Wiring Diagrams 222
- Appendix 211 222
- 212 Appendix 223
- Appendix 213 224
- 214 Appendix 225
- Appendix 215 226
- FXM200L / 250LVE 227
- FXH32L / 63L / 100LVE 228
- 218 Appendix 229
- Appendix 219 230
- 3.1 Outdoor Unit 231
- 3.2 Indoor Unit 232
- 222 Appendix 233
- Appendix 223 234
- 224 Appendix 235
- Appendix 225 236
- 9.0µF-400V 236
- 226 Appendix 237
- 4. Option List 238
- System Configuration 239
- Building Management System 239
- C : 3D041582A 240
- 5.1 RXM8M, 10M 241
- Characteristics 243
- Outdoor Unit 244
- Thermistors for 244
- Discharge Pipe 244
- 7. Pressure Sensor 245
- Transistors and Diode Modules 246
- 236 Appendix 247
- Index iii 250
- Drawings & Flow Charts 252
- All rights reserved 254
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