Daikin FA71FVEK Installation Manual Page 458
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- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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Troubleshooting by Remote Controller Si20-701_B
451
Supposed Causes
Defective transmission wiring between the indoor and
outdoor units
Mismatching of wiring and piping
Refrigerant shortage
Clogged refrigerant piping system
Troubleshooting
Does
"UF" appear
when the power is
turned ON?
YES
NO
Except RZQG
The
phase of
transmission wiring
between the indoor and
outdoor units is
incorrect.
Continue
the condition
that the blinking
interval of HAP on
outdoor unit PCB is
short (∗1) for more
than one
minute.
Correctly connect
transmission
wiring between
the indoor and
outdoor units.
The phase of
transmission wiring
between the indoor and
outdoor units is incorrect.
RZQG
Caution
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
Correctly
connect
transmission
wiring between
the indoor and
outdoor units.
Is the
connection of
transmission wiring
and piping between the
indoor and outdoor
units
matched?
NO
NO
YES
YES
Match the
connection of the
transmission
wiring and piping
between the
indoor and
outdoor units.
A
- Service Diagnosis 1
- Si20-701_B SkyAir Series 7
- 1. List of Applicable Models 8
- R-GA Series 9
- R-G Series 9
- R-KU Series 10
- R-LU Series 11
- R-NU Series 14
- R-PU Series 17
- RR-M Series 18
- RY-FU Series 18
- RY-FV Series 19
- RY-G Series 19
- RY-GAV Series 19
- RY-KU Series 20
- RY-LU Series 21
- RZ-L Series 23
- RZQ-B Series 24
- RZQ-C Series 26
- RZQG-L Series 29
- RZQ-H Series 30
- RZQ-K Series 30
- RZQS-B Series 31
- RZQS-C Series 32
- RZR-HU Series 33
- RZR-KU Series 33
- RZY-L Series 34
- CMSQ Series 35
- 2. Symptom-based 36
- Compressor does not Operate 40
- Starts but Stops Immediately 43
- 2.9 Equipment Produces Loud 56
- Noise or Vibration 56
- 2.11 Remote Controller LCD 60
- Displays "88" 60
- 3. Troubleshooting by Remote 61
- Operation lamp 62
- Error code 63
- Applicable 63
- "UP" button 64
- "DOWN" button 64
- 3.2.1 Indoor Unit 66
- 3.2.2 Outdoor Unit, System 69
- Inverter Series 71
- 3.3 Detailed Error Codes 80
- 3.3.2 Outdoor Unit 81
- Indoor Unit PCB 88
- Drain Water Level System 90
- Indoor Unit Fan Motor 93
- Remote Controller Display 101
- Applicable Models 101
- Method of Error Detection 101
- Error Decision Conditions 101
- Supposed Causes 101
- Troubleshooting 102
- Overload 103
- Fan Motor (M1F) Lock 103
- Swing Flap Motor 105
- Abnormality / Lock 105
- Abnormal Power Supply 107
- Electronic Expansion Valve 109
- Coil (Y1E) Abnormality 109
- Drain System Abnormality 112
- Drain Level above Limit 114
- Capacity Setting 115
- Abnormality 115
- Application Models 119
- Capacity setting adaptor 121
- Transmission Error 122
- (between Indoor Unit PCB and 122
- Fan PCB) 122
- Adaptor PCB) 125
- Thermistor 128
- Defective Combination 130
- Humidity Sensor System 132
- Remote Controller 135
- Thermistor Abnormality 135
- Actuation of Safety Device 137
- Applicable Model 142
- Possible Causes 142
- Activation of Outdoor Unit 145
- Protection Device 145
- Outdoor Unit PCB 147
- High Pressure System 150
- Abnormally High Pressure 155
- Level (HPS) 155
- High Pressure Abnormality 157
- Refer to P.464 159
- Refer to P.475 159
- CHECK 10 159
- Actuation of High Pressure 160
- Low Pressure System 169
- Actuation of Pressure 171
- Refer to P.468 173
- Refer to P.470 173
- Refer to P.466 174
- Actuation of Low Pressure 175
- ∗1: Connector code: X31A 182
- Compressor Motor Lock 183
- Compressor Overcurrent 188
- Outdoor Unit Fan Motor 191
- Refer to P.459 197
- Refer to P.460 197
- Coil Abnormality 207
- Refer to P.474 213
- Discharge Pipe 217
- Temperature Abnormality 217
- Temperature Control 225
- Abnormal Heat Exchanging 227
- Temperature 227
- Refrigerant Overcharged 229
- High Pressure Switch 231
- System Abnormality 236
- Low Pressure Sensor 238
- Signal Abnormality 242
- Outdoor Air Thermistor 246
- Pressure Sensor 248
- Current Sensor System 250
- Discharge Pipe Thermistor 252
- Suction Pipe Thermistor 255
- Heat Exchanger Thermistor 257
- Liquid Pipe Thermistor 259
- Subcooling Heat 261
- Exchanger Gas Pipe 261
- High Pressure Sensor 263
- Detected pressure PH (MPa) 265
- Suction Pipe Pressure 266
- Sensor Abnormality 266
- Outdoor Inverter PCB 270
- Overcurrent of DC Output 275
- (Instantaneous) 275
- Radiation Fin Temperature 277
- Refer to on P.460 282
- Momentary Overcurrent of 288
- Inverter Compressor 288
- Output Overcurrent 291
- Detection 291
- Inverter Compressor 294
- Refer to P.488 295
- CHECK 16 295
- ) Electronic Thermal 301
- Switch (Time Lag) 301
- Inverter Current 304
- Overcurrent 307
- Electronic Thermal (Time 310
- Stall Prevention (Time Lag) 316
- Inverter Startup Error 318
- Between Inverter and Control 324
- (between Control PCB and 330
- Inverter PCB) 330
- Inverter Over-Ripple 333
- Protection 333
- Open Phase or Power 336
- Supply Voltage Imbalance 336
- Radiation Fin Thermistor 338
- Radiation Fin Thermistor or 342
- Related Abnormality 342
- Defective Capacity Setting 343
- Error in Capacity Setting 345
- Field Setting Error after 346
- Replacing Main PCB or 346
- Defective Combination of PCB 346
- Defective Combination of 348
- Inverter and Fan Driver 348
- Refrigerant Shortage 354
- Low Pressure Drop Due to 356
- Refrigerant Shortage or 356
- Electronic Expansion Valve 356
- Reverse Phase 365
- Insufficient Voltage 368
- Power Supply Voltage 370
- Power Supply Insufficient 372
- U2" error 376
- Check Operation is not 380
- Executed 380
- (Between Indoor Unit and 382
- Outdoor Unit) 382
- Between Indoor Unit and 388
- Outdoor Unit 388
- Refer to P.482 393
- CHECK 13 393
- Remote Controller 411
- Between Outdoor Units 419
- Between Main Remote 422
- Controller and Sub Remote 422
- Controller 422
- Between Indoor and Outdoor 428
- Units in the Same System 428
- U4" 430
- U5" 430
- U4" code 430
- Defective Field Setting 431
- Improper Combination of 434
- Indoor and Outdoor Units 434
- Indoor Units and Remote 434
- Field Setting Switch 437
- Field Setting Switch and 440
- Transmission Line 440
- Centralized Address 444
- Setting Error 444
- Address Duplication of 445
- Centralized Controller 445
- Controller and Indoor Unit 446
- Refer to P.492 449
- CHECK 17 449
- Mis-connection of Field 454
- System is not Set yet 455
- Transmission System 462
- Abnormality (between Indoor 462
- System Error, Refrigerant 463
- System Address Undefined 463
- 3.110 Check 466
- For radiation fin thermistor 468
- For discharge pipe thermistor 470
- In heating operation 472
- Voltage Measuring Method 477
- Output Voltage (VH) 478
- Detected Pressure 478
- Resistance Criteria 480
- Check for Clogged Points 484
- CHECK 11 484
- CHECK 14 490
- Unified ON/OFF controller 500
- Centralized remote controller 500
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