Daikin FTXN24KVJU Service Manual Page 102
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- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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Troubleshooting SiUS041111
94 Service Diagnosis
4.13 Four-Way Valve Abnormality
Remote
Controller
Display
EA
Method of
Malfunction
Detection
The room temperature thermistor, the indoor heat exchanger thermistor, the outdoor temperature
thermistor, and the outdoor heat exchanger thermistor are checked if they function within their
normal ranges in each operation mode.
Malfunction
Decision
Conditions
A following condition continues over 10 minutes after operating for 5 minutes.
Cooling / Dry
(room thermistor temp. – indoor heat exchanger temp.) < –5°C (–9°F)
Heating
(indoor heat exchanger temp. – room thermistor temp.) < –5°C (–9°F)
If the error repeats, the system is shut down.
Reset condition: Continuous run for about 60 minutes without any other error
Supposed
Causes
Disconnection of four-way valve coil
Defective four-way valve, coil, or harness
Defective outdoor unit PCB
Defective thermistor
Refrigerant shortage
Water mixed in refrigerant
Defective stop valve
- Service 1
- Inverter Pair 2
- Wall Mounted Type 2
- K-Series 2
- Table of Contents ii 3
- Table of Contents iv 5
- Safety Considerations 7
- List of Functions 9
- 1. Functions 10
- SiUS041111 Functions 11
- List of Functions 3 11
- Specifications 12
- 1. Specifications 13
- 60 Hz, 208 - 230 V 14
- 1.2 Heat Pump 16
- 60 Hz, 208 - 230V 17
- Printed Circuit Board 19
- Connector Wiring Diagram 19
- 1. Indoor Unit 20
- 2P206569-4 21
- 3P206563-1 21
- 1.2 15/18/24 Class 22
- 2P099167-2 23
- 2. Outdoor Unit 24
- 3P257381-1 25
- 2P257375-2 25
- 2.2 15/18/24 Class 26
- 3P273862-1 27
- 2P273854-1 27
- Function and Control 28
- Target temperature 29
- Set temperature 29
- Room temperature 29
- Room thermistor temperature 29
- (R12321) 29
- Drawing of 30
- Inverter 30
- 1.3 Airflow Direction Control 31
- (R11681) 32
- (R14720) 32
- (R14659) 32
- (R11587) 33
- (R14660) 34
- (R14663) 35
- (R14661) 35
- 1.8 NIGHT SET Mode 36
- 1.9 ECONO Operation 37
- (R13571) 38
- POWERFUL 38
- (R14568) 39
- ON/OFF button 39
- (R14380) 39
- (R14721) 40
- (R14247) 40
- (R14428) 41
- (R14248) 41
- (R14717) 42
- 3.3.1 Preheating Operation 44
- (R13528) 45
- (R13906) 46
- (R14722) 47
- (R14723) 48
- 3.7 Heating Peak-cut Control 49
- 3.8 Outdoor Fan Control 50
- 3.10 Defrost Control 51
- (R14667) 52
- (R14458) 53
- 46 Function and Control 54
- Minimum opening (pulse) 52 17 54
- (R14213) 55
- (R14668) 56
- Operation Manual 57
- 1. System Configuration 58
- Name of Parts 59
- Open the front cover 60
- AUTO · DRY · COOL · HEAT · 61
- FAN Operation 61
- Press or 62
- To start auto swing 63
- Press 64
- COMFORT AIRFLOW Operation 65
- POWERFUL Operation 66
- ECONO Operation 67
- OFF TIMER Operation 68
- ON TIMER Operation 69
- Press or 73
- Press 74
- Press 75
- Service Diagnosis 79
- 72 Service Diagnosis 80
- (R11599) 81
- (R14251) 81
- Operation lamp (green) 81
- (R14669) 83
- (R14550) 84
- (R14551) 84
- (R14552) 84
- (R14547) 85
- (R14548) 85
- (R14549) 85
- 4. Troubleshooting 86
- (R11704) 87
- 80 Service Diagnosis 88
- (R14402) 89
- 82 Service Diagnosis 90
- (R14405) 91
- (R14436) 92
- (R14406) 93
- Outdoor Unit) 94
- (R14437) 95
- (R11707) 96
- (R14253) 97
- (R14438) 98
- (R14439) 99
- (R14410) 100
- (R14440) 101
- Troubleshooting SiUS041111 102
- 94 Service Diagnosis 102
- (R14441) 103
- (R14412) 105
- 98 Service Diagnosis 106
- (R14413) 107
- (R11712) 108
- SiUS041111 Troubleshooting 109
- Service Diagnosis 101 109
- Troubleshooting 110
- Service Diagnosis 103 111
- H9, J3, J6, P4 112
- (R14443) 113
- (R14671) 115
- 108 Service Diagnosis 116
- 09/12 class 15/18/24 class 116
- A 99°C (210.2°F) 85°C (185°F) 116
- (R14672) 117
- 110 Service Diagnosis 118
- (R14446) 119
- 4.23 Refrigerant Shortage 120
- (R14447) 121
- 114 Service Diagnosis 122
- (R14389) 123
- 5. Check 124
- (R12099) 125
- (R11979) 125
- (R14245) 126
- (R14673) 127
- (R14674) 127
- (R13940) 128
- SiUS041111 Check 129
- Service Diagnosis 121 129
- (R11907) 130
- (R10811) 130
- (R14468) 131
- 5.10 Discharge Pressure Check 132
- 5.11 Outdoor Fan System Check 132
- (R14675) 133
- (R14433) 134
- Removal Procedure 135
- (R11616) 136
- (R11617) 136
- (R11618) 136
- (R14598) 136
- (R11620) 137
- (R14599) 137
- (R11622) 138
- (R11623) 138
- (R11624) 138
- (R11625) 138
- (R11626) 139
- (R11627) 140
- (R11628) 140
- (R11629) 140
- (R11630) 140
- (R11631) 141
- (R14618) 141
- (R11633) 141
- (R12715) 141
- (R14676) 142
- (R11636) 142
- (R11637) 142
- (R11638) 142
- (R11639) 143
- (R11640) 143
- (R11268) 143
- (R11641) 143
- Bottom frame 144
- Fan guard 145
- 138 Removal Procedure 146
- Step Procedure Points 146
- (R14603) 147
- (R11649) 147
- (R11650) 147
- Display 148
- (R14604) 149
- (R14677) 149
- (R11655) 149
- (R11656) 150
- (R11943) 150
- Wooden base 151
- Drain hose 151
- Extension drain hose 151
- Connecting wires 151
- Gas piping 152
- Liquid piping 152
- Auxiliary piping 152
- Piping fixture 152
- Indoor heat 153
- (R8041)(R11269) 153
- Right side panel 154
- Fan rotor 155
- Fan motor 155
- 148 Removal Procedure 156
- Heat insulation fixing screw 157
- Drain plug 157
- Drain piping (left) 157
- (R12786) 158
- (R12787) 158
- Removal Procedure 151 159
- 152 Removal Procedure 160
- 2.2 Removal of Front Grille 161
- 154 Removal Procedure 162
- (R12894) 163
- Vertical blade 164
- (R14685) 165
- (R14686) 165
- (R11234) 165
- (R14254) 166
- (R13224) 167
- (R14255) 168
- (R14256) 168
- (R14257) 169
- Swing motor 169
- (R13231) 172
- (R13232) 172
- Fan motor fixing plate 173
- Left side plate 174
- (R11741) 175
- (R14687) 175
- (R14688) 175
- (R14689) 175
- (R11745) 176
- (R11746) 176
- (R11747) 176
- (R11748) 177
- (R11749) 177
- (R11750) 177
- (R11751) 178
- (R11752) 178
- (R11753) 178
- (R14690) 179
- (R12236) 179
- (R11754) 179
- (R11945) 180
- (R14724) 180
- (R14691) 180
- Removal Procedure 173 181
- (R11762) 182
- (R11763) 182
- (R11764) 182
- (R11765) 183
- (R11740) 183
- (R11766) 183
- (R11767) 183
- (R11768) 184
- (R11769) 184
- (R11770) 184
- (R11771) 185
- (R11772) 185
- (R11773) 185
- (R11774) 186
- (R11775) 186
- (R11776) 187
- (R11946) 187
- (R11779) 187
- (R11780) 188
- (R11777) 188
- (R11781) 188
- (R11782) 189
- (R10717) 189
- (R11783) 189
- (R11784) 190
- (R11785) 190
- (R11786) 190
- (R11787) 191
- (R11788) 191
- (R11789) 192
- (R11790) 192
- (R11791) 192
- (R11792) 193
- (R11793) 193
- (R11794) 194
- (R11795) 194
- (R11796) 194
- (R11799) 195
- (R11797) 195
- (R14529) 195
- (R11798) 196
- (R11800) 196
- (R11802) 197
- (R11804) 197
- (R11805) 198
- Discharge side 198
- (R11806) 198
- (R11807) 198
- (R11808) 198
- (R14281) 199
- (R14702) 199
- (R14703) 199
- (R14283) 199
- (R14284) 200
- (R14285) 200
- (R14286) 200
- (R14704) 201
- (R14705) 201
- (R14287) 202
- (R14288) 202
- (R14289) 202
- (R14304) 203
- (R14448) 203
- (R14291) 203
- (R14292) 203
- (R14293) 204
- Fan motor fixing frame 204
- (R14294) 204
- (R14295) 204
- (R14296) 205
- (R14297) 205
- (R14706) 206
- (R14734) 206
- (R14707) 206
- (R14708) 206
- (R14709) 206
- (R14299) 207
- (R14300) 207
- (R14301) 207
- (R14303) 208
- (R14736) 208
- (R14375) 208
- (R14376) 208
- (R14308) 209
- (R14309) 210
- (R14305) 210
- (R14306) 210
- (R14307) 210
- Removal Procedure 203 211
- (R14314) 212
- (R14315) 212
- (R14726) 212
- (R14316) 212
- (R14317) 212
- (R14318) 213
- (R14320) 213
- (R14727) 213
- (R14321) 213
- (R14322) 214
- (R14323) 214
- (R14324) 214
- (R14325) 215
- (R14728) 215
- (R14326) 215
- (R14327) 215
- (R14328) 216
- (R14329) 216
- (R14330) 216
- (R14331) 217
- (R14332) 217
- (R14333) 217
- (R14334) 217
- (R14735) 218
- (R14336) 218
- (R14337) 218
- (R14364) 218
- (R14365) 219
- (R14366) 219
- (R14367) 219
- (R14368) 219
- (R14369) 220
- (R14370) 220
- (R14371) 221
- (R14372) 221
- (R14373) 221
- (R14374) 221
- (R14338) 222
- (R12287) 222
- (R14339) 222
- (R14346) 222
- (R14347) 223
- (R14348) 223
- (R14349) 224
- (R14350) 224
- (R14351) 224
- (R14585) 224
- (R14340) 225
- (R14341) 225
- (R14343) 226
- (R14344) 226
- (R14377) 226
- (R14345) 226
- (R14353) 227
- (R14354) 227
- Trial Operation and 228
- Field Settings 228
- (R13628) 229
- (R14578) 230
- (R14258) 230
- (R14259) 230
- (R14476) 231
- (R12275) 232
- (R14477) 232
- (R12008) 233
- (R14261) 233
- (R13525) 233
- Field Settings SiUS041111 234
- 4.5 Jumper Settings 235
- Applicable 236
- Appendix 237
- 1. Piping Diagrams 238
- 1.2 Outdoor Unit 239
- RXN09/12KEVJU 240
- RXN15/18/24KEVJU 240
- 2. Wiring Diagrams 241
- FIELD WIRING 242
- SiUS041111 244
- Printed in U.S.A. 7/2011 B AK 244
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