Daikin VRV RXYMQ-A Series Service Manual page 145

SiME332106E
1. Servicing Items to be Confirmed .........................................................142
2. Symptom-based Troubleshooting .......................................................144
3. Error Code via Remote Controller.......................................................149
4. Error Code via Outdoor Unit PCB .......................................................152
5. Troubleshooting by Error Code ...........................................................153
Part 6 Service Diagnosis
Service Diagnosis
1.1 Troubleshooting....................................................................................142
1.2 Precautions for Maintenance................................................................142
1.3 Refrigerant Properties (R-410A)...........................................................143
2.1 With Optional Infrared Presence/Floor Sensor.....................................147
2.2 For All Outdoor Units............................................................................148
3.1 BRC1E63 .............................................................................................149
3.2 BRC1H81 Series ..................................................................................150
3.3 BRC4M Series......................................................................................151
5.1 Error Codes and Descriptions ..............................................................153
5.2 Error Codes (Sub Codes).....................................................................155
5.3 External Protection Device Abnormality ...............................................160
5.4 Indoor Unit PCB Abnormality ...............................................................161
5.5 Drain Level Control System Abnormality..............................................162
5.6 Indoor Fan Motor Lock, Overload.........................................................164
5.7 Indoor Fan Motor Abnormality..............................................................166
5.8 Power Supply Voltage Abnormality ......................................................172
5.9 Electronic Expansion Valve Coil Abnormality, Dust Clogging ..............175
5.10 Humidifier System Abnormality ............................................................176
5.11 Auto Grille Unit Error ............................................................................177
5.12 Defective Capacity Setting ...................................................................178
5.13 Transmission Abnormality (between Indoor Unit PCB and
Fan PCB)..............................................................................................179
5.14 Transmission Error ...............................................................................181
5.15 Transmission Error (between Indoor Unit PCB and Auto Grille
Control PCB) ........................................................................................182
5.16 Thermistor Abnormality ........................................................................184
5.17 Combination Abnormality (between Indoor Unit PCB and Fan PCB)...185
5.18 Capacity Setting Abnormality ...............................................................186
5.19 Indoor Unit PCB Abnormality ...............................................................187
5.20 Infrared Presence/Floor Sensor Error ..................................................188
5.21 Remote Controller Thermistor Abnormality ..........................................193
5.22 Outdoor Unit Main PCB Abnormality....................................................194
5.23 Current Leakage Detection ..................................................................195
5.24 Missing of Leakage Detection Core .....................................................196
5.25 Activation of High Pressure Switch ......................................................197
5.26 Activation of Low Pressure Sensor ......................................................199
5.27 Compressor Motor Lock .......................................................................200
Part 6
139