Daikin Sky Air B-Series R-410A Service Manual page 4

Si21-205
Part 8 Troubleshooting .............................................................117
1. Troubleshooting Based on Equipment Condition................................119
2. Self-Diagnosis by Remote Controller ..................................................133
3. Self-Diagnosis by LED ........................................................................138
4. Error Codes and LED Indication .........................................................139
5. Troubleshooting for Indoor Unit...........................................................142
6. Troubleshooting for Outdoor Unit (25/35 class) ..................................164
Table of Contents
1.1 Equipment does not operate. .............................................................. 120
1.2 Indoor fan operates, but compressor does not.................................... 121
1.3 Cooling / Heating operation starts but stops immediately. .................. 123
1.4 After shutting down, equipment does not restart for a while................ 124
1.5 Equipment operates but does not provide cooling. ............................. 125
1.6 Equipment operates but does not provide heating. ............................. 127
1.7 Equipment discharges white mist. ....................................................... 128
1.8 Equipment produces loud noise or shakes.......................................... 129
1.9 Equipment discharges dust. ................................................................ 130
1.10 Remote controller LCD displays "88" .................................................. 131
1.11 Swing flap does not operate. ............................................................... 132
2.1 The INSPECTION/TEST Button.......................................................... 133
2.2 Self-Diagnosis by Wired Remote Controller ........................................ 134
2.3 Self-Diagnosis by Wireless Remote Controller.................................... 135
2.4 Remote Controller Display Malfunction Code and Contents ............... 137
3.1 Self-Diagnosis with the LED on the Indoor Unit .................................. 138
3.2 Self-Diagnosis with the LED on the Outdoor Unit................................ 138
5.1 Failure of Indoor Unit PC Board .......................................................... 142
5.2 Malfunction of Drain Water Level System (Float Type) ....................... 143
5.3 Failure of Drain System ....................................................................... 145
5.4 Indoor Unit Fan Motor Lock ................................................................. 146
5.5 Malfunction of Indoor Unit Fan Motor .................................................. 147
5.6 Swing Flap Motor Malfunction / Lock................................................... 149
5.7 Failure of Capacity Setting .................................................................. 151
5.8 Malfunction of Heat Exchanger Thermistor (R2T) ............................... 152
5.9 Malfunction of Heat Exchanger Thermistor (R3T) ............................... 153
5.10 Malfunction of Suction Air Thermistor.................................................. 154
5.11 Malfunction of Remote Controller Thermistor...................................... 155
5.12 Transmission Error (Between Indoor and Outdoor Unit) ..................... 156
5.13 Transmission Error (Between Indoor Unit and Remote Controller) ..... 157
5.14 Transmission Error (Between Main and Sub Remote Controller) ....... 158
5.15 Malfunction of Field Setting Switch...................................................... 159
5.16 Centralized Address Setting Error ....................................................... 161
5.17 Checks for Indoor Unit......................................................................... 162
6.1 OL Activation (Compressor Overload)................................................. 164
6.2 Compressor Lock ................................................................................ 165
6.3 Input Over Current Detection............................................................... 166
6.4 Four Way Valve Abnormality ............................................................... 167
6.5 Discharge Pipe Temperature Control .................................................. 169
6.6 Position Sensor Abnormality ............................................................... 170
6.7 CT or Related Abnormality .................................................................. 171
6.8 Thermistor or Related Abnormality (Outdoor Unit) .............................. 173
6.9 Electrical Box Temperature Rise ......................................................... 175
6.10 Radiation Fin Temperature Rise.......................................................... 177
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