Part 6 Service Diagnosis - Daikin VRV EMERION RXYQ-AATJA Service Manual

1. Symptom-based Troubleshooting ...........................................................226
2. Troubleshooting with Remote Controller.................................................231
3. Troubleshooting by Error Code ...............................................................234
223
Service Diagnosis
1.1 General Troubleshooting.......................................................................... 226
1.2 Low-Temperature Hydrobox Overall ........................................................ 229
1.3 With Gas Furnace .................................................................................... 229
1.4 Gas Furnace Lockout Reset..................................................................... 229
1.5 With Infrared Presence/Floor Sensor ....................................................... 230
2.1 BRC1E73 ................................................................................................. 231
2.2 BRC1H71W.............................................................................................. 232
2.3 Wireless Remote Controller ..................................................................... 232
3.1 Error Codes and Descriptions .................................................................. 234
3.2 Error Codes (Sub Codes)......................................................................... 236
3.3 Prediction Codes ...................................................................................... 245
3.4 External Protection Device Abnormality ................................................... 249
3.5 Indoor Unit Control PCB Abnormality....................................................... 251
3.6 Drain Level Control System Abnormality.................................................. 252
3.7 Indoor Fan Motor Lock, Overload............................................................. 254
3.8 Indoor Fan Motor Abnormality.................................................................. 256
3.9 Overload/Overcurrent/Lock of Indoor Fan Motor...................................... 260
3.10 Blower Motor Not Running ....................................................................... 261
3.11 Indoor Fan Motor Status Abnormality....................................................... 262
3.12 Low Indoor Airflow.................................................................................... 263
3.13 Swing Flap Motor Abnormality ................................................................. 264
3.14 Power Supply Voltage Abnormality .......................................................... 266
3.15 Blower Motor Stops for Over/Under Voltage ............................................ 267
3.16 Electronic Expansion Valve Coil Abnormality, Dust Clogging .................. 268
3.17 Gas Furnace Abnormality......................................................................... 269
3.18 Drain Level above Limit............................................................................ 270
3.19 Self-Cleaning Decoration Panel Abnormality ........................................... 271
3.20 Capacity Determination Device Abnormality ............................................ 282
3.21 Transmission Abnormality between Indoor Unit Control PCB and Fan
PCB .......................................................................................................... 283
3.22 Blower Motor Communication Error ......................................................... 285
3.23 Climate Talk Communication Error .......................................................... 286
3.24 Thermistor Abnormality ............................................................................ 287
3.25 Combination Error between Indoor Unit Control PCB and Fan PCB ....... 288
3.26 Blower Motor HP Mismatch...................................................................... 289
3.27 Indoor Blower Does Not Have Required Parameters to Function............ 290
SiUS342303E
Part 6

Part 6 Service Diagnosis