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ESIE09-08A Troubleshooting by Indication on the Remote Controller
Troubleshooting 191
3.40 “L4 ” Indoor Unit: Malfunction of Inverter Radiating Fin
Temperature Rise (R8T)
Remote Control
Display
L4
Subcode 8
Applicable Models All indoor units
Method of
Malfunction
Detection
Fin temperature is detected by the thermistor of the radiation fin.
If fin temperature is too high, the compressor will slow down (capacity shortage).
Malfunction
Decision Conditions
Faulty thermistor.
Broken wire.
Supposed Causes Defect of inverter PC board [A4P (1ø) or A5P (3ø)]
Defect of fin thermistor (R8T)
Troubleshooting
Caut ion
Be sure to turn off power switch before connecting or disconnecting connector,
otherwise parts may be damaged.
Faulty heat radiation of power unit
• Air suction or discharge opening
blocked
• Dirty radiator fin
• High water / discharge temperature
• Check heat conductive paste
Continue operation.
NO
YES
Replace the inverter PC board
assy
YES
The radiator
fin temperature is
supposed to have risen
to high value.
Properly connect.
YES
NO
Is the
connector X111A
of the fin thermistor properly
connected to the indoor
PC board?
Does the
malfunction code "L4-08"
recur when the unit starts
operation?
NO
Turn ON the power supply, and then
press the remote control check
button once.
[A4P (1
ø
) or A5P (3
ø
)] as well.
- Service Manual 1
- Table of Contents 3
- Table of Contents iii 5
- Table of Contents v 7
- 1. Introduction 8
- 1.1.3 Inspection after Repair 10
- 1.1.4 Using Icons 11
- 1.1.5 Using Icons List 11
- 1.2 PREFACE 12
- Part 1 - General Information 13
- Indoor Units 14
- Outdoor Units 14
- 4 General Information 16
- Part 2 - Specifications 17
- 1. Specifications 18
- Electrical Specifications 19
- 1.2 Indoor Unit 20
- ESIE09-08A Specifications 21
- Specifications 9 21
- Part 3 - Refrigerant Circuit 23
- & Functional Parts 23
- 1. Refrigerant Circuit 24
- Refrigerant Circuit 13 25
- EKHBRD 011/014/016 AA(V1/Y1) 27
- 16 Refrigerant Circuit 28
- 2. Functional Parts Layout 29
- Back view 30
- Bird’s-eye view 31
- Front view 33
- Top view 33
- Overview 35
- 2.5 EKHTS 200/260 A/AB/AC 36
- Worm’s-eye view 37
- Tank sensor 38
- Bottom view 39
- 28 Refrigerant Circuit 40
- Part 4 - Electrical Circuit 41
- EKHBRD 011/014/016 AAV1 42
- 2.1 Main PCB - A1P 46
- 2.2 Control - PCB - A3P 48
- *1: Only for EKHTS 49
- 2.3 Inverter PCB - A4P 50
- Inverter PCB 51
- 2.4 Filter PCB - A6P 53
- Filter PCB - A6P 54
- 2.5 QA PCB - A5P 55
- 44 Refrigerant Circuit 56
- Inverter PCB - three phase 58
- 48 Refrigerant Circuit 60
- Demand PCB (option PCB A8P) 62
- Refrigerant Circuit 51 63
- 52 Refrigerant Circuit 64
- Part 5 - Function 65
- 1. Operation Mode 66
- 2. Basic Control 67
- 2.2 Compressor PI Control 68
- 3. Special Control 70
- Startup Control 70
- 3.2 Defrosting Operation 71
- Stopping Operation 73
- 4. Protection Control 74
- In heating operation [R-134a] 75
- In heating operation [R-410A] 76
- INV compressor [R-410A] 78
- INV compressor [R-134a] 78
- Inverter Protection Control 79
- Protection Control ESIE09-08A 80
- 68 Function 80
- 5. Other Control 81
- Heating Operation Prohibition 81
- 6.1 Freeze Prevention 82
- Part 6 - Test Operation 89
- 1. Test Operation 90
- 1.1.2 Turn Power On 91
- ESIE09-08A Test Operation 93
- Test Operation 81 93
- 1.3.3 Check Operation 96
- ER(S/R)Q (011/014/016) AAY1 98
- ER(S/R)Q (011/014/016) AAV1 98
- 3. Field Setting 99
- Field Setting ESIE09-08A 100
- 88 Test Operation 100
- EKHBRD*AA 101
- 90 Test Operation 102
- ESIE09-08A Field Setting 103
- Test Operation 91 103
- EKHBRD*AB/AC 104
- Test Operation 93 105
- [0] Remote control setup 106
- Test Operation 95 107
- OFF ONON 108
- Test Operation 97 109
- 98 Test Operation 110
- Test Operation 99 111
- [4] Disinfection function 112
- Test Operation 101 113
- [6] Option setup 114
- [7] Option setup 115
- [8] Option setup 116
- Test Operation 105 117
- 20°C–2°C = 18° 118
- 24°C–2°C = 22° 118
- [A] Option setup 119
- 108 Test Operation 120
- [b-04] (*) 121
- 110 Test Operation 122
- Test Operation 111 123
- [E] Service mode 124
- Test Operation 113 125
- 114 Test Operation 126
- Test Operation 115 127
- c 128
- Test Operation 117 129
- 118 Test Operation 130
- 9 797997 134
- 16 4 1 134
- 32 8 2 134
- Test Operation 123 135
- 124 Test Operation 136
- Part 7 - Troubleshooting 137
- ESIE09-08A 138
- 128 Troubleshooting 138
- Circuit breaker 139
- Operation Button 143
- How to Enter the 144
- Service Mode 144
- Operation Method 144
- Inspection display 146
- ON/OFF button 146
- Operation lamp 146
- Malfunction code 146
- Alternating code possible 146
- : OFF c: Blink 147
- Abnormal IGBT 148
- Display of contents of 149
- 140 Troubleshooting 150
- Troubleshooting 141 151
- : ON : OFF c:Blink 151
- Controller 152
- Subcode 0 154
- All indoor unit models 156
- Troubleshooting 147 157
- 148 Troubleshooting 158
- Troubleshooting 159
- Thermistor R-410A 160
- Troubleshooting 151 161
- 152 Troubleshooting 162
- Troubleshooting 153 163
- Is “CJ” displayed 164
- Troubleshooting 155 165
- 156 Troubleshooting 166
- Troubleshooting 157 167
- Troubleshooting 159 169
- Check No.1 170
- 162 Troubleshooting 172
- 164 Troubleshooting 174
- Check No.2 175
- Is high 176
- (0.5MPa or more) 176
- Troubleshooting 167 177
- 168 Troubleshooting 178
- Expansion Valve 180
- 172 Troubleshooting 182
- 174 Troubleshooting 184
- Troubleshooting 175 185
- Outdoor Air 186
- Troubleshooting 177 187
- Caut ion 188
- 178 Troubleshooting 188
- Suction Pipe 1, 2 189
- 180 Troubleshooting 190
- Outdoor Unit Heat Exchanger 191
- Outdoor Unit Liquid Pipe 192
- Troubleshooting 183 193
- 184 Troubleshooting 194
- Troubleshooting 185 195
- Connect low pressure sensor 196
- Troubleshooting 187 197
- 188 Troubleshooting 198
- Troubleshooting 189 199
- Temperature Rise 200
- Temperature Rise (R8T) 201
- 192 Troubleshooting 202
- Compressor inspection 203
- "L8" blinks again 204
- Troubleshooting 195 205
- Output current check 205
- L9" blinks 206
- Troubleshooting 197 207
- Inverter and Control PC Board 208
- 200 Troubleshooting 210
- Have the 211
- Troubleshooting 203 213
- 204 Troubleshooting 214
- 206 Troubleshooting 216
- Check the inverter power 217
- Is the power 217
- Check No.3 217
- 208 Troubleshooting 218
- Outdoor Unit 220
- U4 subcode 0 220
- Subcode 4 222
- AII indoor unit models 222
- U5 Subcode 0 223
- 214 Troubleshooting 224
- Remote Controls 225
- Does the type 226
- Troubleshooting 217 227
- Undefined 228
- UH subcode 0 228
- Troubleshooting 219 229
- 220 Troubleshooting 230
- 222 Troubleshooting 232
- Part 8 - Appendix 233
- 1. Piping Diagrams 234
- ERRQ + ERSQ 011/014/016 AAY1 235
- ESIE09-08A Piping Diagrams 237
- Appendix 227 237
- 1.3 Switch Box Layout 239
- *: included in option kit 240
- EKHBRD 011/014/016 AAY1 241
- EKHBRD 011/014/016 AB/AC Y1 241
- 2. Wiring Diagrams 243
- ERRQ + ERSQ 011/014/016 Y1 245
- ESIE09-08A Wiring Diagrams 247
- Appendix 237 247
- 2.3 Indoor Unit 248
- Appendix 239 249
- EKHBRD 011/014/016 AB/AC V1 250
- Appendix 241 251
- #: field supplied 253
- Appendix 245 255
- Appendix 247 257
- Wiring Diagrams ESIE09-08A 260
- 250 Appendix 260
- Thermistors for 262
- Discharge Pipe 262
- NTC-curve 263
- 4. Pressure Sensor 264
- Appendix 255 265
- Inverter PC board 266
- Appendix 257 267
- 6. External Backup Heater Kit 268
- 6.2 Main Components 269
- Safety devices 270
- 6.3 Technical Specifications 271
- Detailed 272
- Normal operation 273
- 264 Appendix 274
- General heating 276
- (but no AA error 276
- 6.8 Switch Box Layout 277
- EKBUHAA6W1 278
- 6.9 Wiring Diagrams 279
- 7. 3-Way Valve 283
- Separate the 3-way 285
- 230V 230V 287
- 3-Way Valve ESIE09-08A 288
- 278 Appendix 288
- Part 9 - Precautions for 289
- New Refrigerant (R-410A) 289
- 1.1 Outline 290
- 1.2 Refrigerant Cylinders 292
- 1.3 Service Tools 293
- Flare gauge 294
- Dimension A 294
- For class-1: R-407C 294
- For class-2: R-410A 294
- 1/2 24 26 24 295
- 5/8 27 29 27 295
- Can not be used 297
- Drawings & Flow Charts 301
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