Daikin 4MXL-T Series Service Manual page 4

Part 5 Remote Controller .............................................................. 122
1. Applicable Remote Controller .................................................................123
2. ARC466A36 ............................................................................................124
3. ARC452A21 ............................................................................................126
4. ARC452A23 ............................................................................................128
5. ARC466A21 ............................................................................................130
6. BRC944B2 Wired Remote Controller......................................................132
7. BRC1E73 Wired Remote Controller........................................................133
8. BRC082A43 Wireless Remote Controller ...............................................139
9. BRC082A41W, BRC082A42W(S) Wireless Remote Controller..............141
Part 6 Service Diagnosis ............................................................... 143
1. General Problem Symptoms and Check Items .......................................145
2. Troubleshooting with LED .......................................................................146
3. Service Diagnosis ...................................................................................150
4. Code Indication on Remote Controller ....................................................162
5. Troubleshooting for RA Indoor Unit.........................................................164
6. Troubleshooting for SA Indoor Unit.........................................................178
iii
2.1 Indoor Unit................................................................................................ 146
2.2 Outdoor Unit ............................................................................................. 149
3.1 ARC452 Series Wireless Remote Controller............................................ 150
3.2 ARC466 Series Wireless Remote Controller............................................ 153
3.3 BRC1E73 Wired Remote Controller......................................................... 156
3.4 BRC082A43, BRC082A41W, BRC082A42W(S) Wireless Remote Controller
................................................................................................................. 158
4.1 RA Indoor Unit.......................................................................................... 162
4.2 SA Indoor Unit .......................................................................................... 162
4.3 Outdoor Unit ............................................................................................. 163
5.1 Indoor Unit PCB Abnormality ................................................................... 164
5.2 Freeze-up Protection Control/Heating Peak-cut Control .......................... 166
5.3 Indoor Fan Motor or Related Abnormality ................................................ 167
5.4 Thermistor or Related Abnormality........................................................... 172
5.5 Front Panel Open/Close Fault.................................................................. 173
5.6 Signal Transmission Error (Between Indoor Unit and Outdoor Unit)........ 174
5.7 Mismatching of Indoor Unit and Outdoor Unit .......................................... 177
6.1 Indoor Unit PCB Abnormality ................................................................... 178
6.2 Drain Level Control System Abnormality.................................................. 179
6.3 Indoor Fan Motor or Related Abnormality ................................................ 180
6.4 Indoor Fan PCB Abnormality.................................................................... 185
6.5 Humidifier or Related Abnormality............................................................ 186
6.6 Thermistor or Related Abnormality........................................................... 187
6.7 Presence Sensor or Floor Sensor Abnormality ........................................ 188
6.8 Remote Controller Thermistor Abnormality .............................................. 189
6.9 Signal Transmission Error (Between Indoor and Outdoor Unit) ............... 190
6.10 Signal Transmission Error (Between Indoor Unit and Remote Controller)
................................................................................................................. 192
SiUS121827E
Table of Contents