![background image](http://html1.mh-extra.com/html/daikin/lryeq16ay1/lryeq16ay1_service-manual_3234341004.webp)
SiBE811001EB
3
CONVENI-PACK
8.4.33 Low Pressure Switch Failure or Operate ............................................ 212
8.4.34 Outdoor Unit Fan Motor Signal Abnormality ....................................... 213
8.4.35 Outdoor Air Thermistor Abnormality ................................................... 215
8.4.36 Intermediate/High Pressure Sensor Abnormality................................ 216
8.4.37 Low Pressure Sensor Abnormality...................................................... 218
8.4.38 Current Sensor Abnormality................................................................ 220
8.4.39 Outdoor Unit Thermistor Abnormality ................................................. 221
8.4.40 Inverter PCB Abnormality ................................................................... 223
8.4.41 Inverter Radiating Fin Temperature Rise Abnormality........................ 224
8.4.42 Momentary Overcurrent of Inverter Compressor ................................ 225
8.4.43 Momentary Overcurrent of Inverter Compressor ................................ 226
8.4.44 Inverter Compressor Starting Failure.................................................. 228
8.4.45 Transmission Error between Inverter and Outdoor Unit Main PCB .... 231
8.4.46 Inverter Over-Ripple Protection .......................................................... 233
8.4.47 Inverter Radiation Fin Temperature Rise Sensor Abnormality ........... 234
8.4.48 Field Setting Abnormality after Replacing Outdoor Unit Main PCB
or Defective Combination of PCB ....................................................... 235
8.4.49 Reverse Phase, Open Phase ............................................................. 236
8.4.50 Power Supply Insufficient or Instantaneous Failure............................ 237
8.4.51 Transmission Error between Indoor Units and Outdoor Units ............ 239
8.4.52 Transmission Error between Remote Controller and Indoor Unit ....... 241
8.4.53 Transmission Error between Outdoor Units........................................ 242
8.4.54 Transmission Error between Main and Sub Remote Controllers........ 243
8.4.55 Transmission Error between Indoor
and Outdoor Units in the Same System.............................................. 244
8.4.56 Improper Combination of Indoor and Outdoor Units ........................... 245
8.4.57 Address Duplication of Central Remote Controller ............................. 246
8.4.58 Transmission Error between Indoor Unit
and Central Remote Controller ........................................................... 247
8.4.59 System is not Set yet .......................................................................... 249
8.4.60 System Abnormality and Refrigerant System Address Undefined...... 250
8.5
Troubleshooting (Booster Unit) ............................................................251
8.5.1
PCB Defect ......................................................................................... 251
8.5.2
Earth Leakage .................................................................................... 252
8.5.3
High Pressure Switch Abnormality...................................................... 253
8.5.4
Low Pressure Sensor Abnormality...................................................... 255
8.5.5
Inverter Compressor Motor Lock ........................................................ 257
8.5.6
Error Electronic Expansion Valve Coil ................................................ 259
8.5.7
Abnormal Discharge Pipe Temperature.............................................. 260
8.5.8
High Pressure Switch Abnormality...................................................... 261
8.5.9
Outdoor Unit Thermistor Abnormality ................................................. 262
8.5.10 Low Pressure Sensor Abnormality...................................................... 263
8.5.11 Inverter PCB Abnormality ................................................................... 265
8.5.12 Inverter Radiating Fin Temperature Rise Abnormality........................ 266
8.5.13 Momentary Overcurrent of Inverter Compressor ................................ 267
8.5.14 Momentary Overcurrent of Inverter Compressor ................................ 269
8.5.15 Inverter Compressor Starting Failure.................................................. 271
8.5.16 Transmission Error between Inverter and Control PCB...................... 274
8.5.17 Inverter Over-Ripple Protection .......................................................... 275
8.5.18 Inverter Radiating Fin Temperature Rise Sensor Abnormality ........... 276
8.5.19 Field Setting after Replacing Outdoor Unit Main PCB
or Combination of PCB Abnormality ................................................... 277
8.5.20 Refrigerant Shortage Alert .................................................................. 278
8.5.21 Power Supply Insufficient or Instantaneous Failure............................ 279
8.5.22 Transmission Error between Outdoor Units and Booster Units .......... 281
8.5.23 System is not Set yet .......................................................................... 283
8.5.24 System Abnormality and Refrigerant System Address Undefined...... 284
8.5.25 Check.................................................................................................. 285
8.6
Troubleshooting by RAM Monitor (Outdoor Unit) .................................296
8.7
Troubleshooting by RAM Monitor (Booster Unit)..................................307
8.8
Maintenance.........................................................................................311