Part 6 Troubleshooting - Daikin RXYQ5-48MAY1 Service Manual

Si39-407
1. Symptom-based Troubleshooting .......................................................166
2. Troubleshooting by Remote Controller ...............................................169
3. Troubleshooting by Indication on the Remote Controller ....................182
Troubleshooting
Troubleshooting Troubleshooting Troubleshooting Troubleshooting
2.1 The INSPECTION / TEST Button.........................................................169
2.2 Self-diagnosis by Wired Remote Controller .........................................170
2.3 Self-diagnosis by Wireless Remote Controller .....................................171
2.4 Operation of The Remote Controller's Inspection /
Test Operation Button ..........................................................................174
2.5 Remote Controller Service Mode .........................................................175
2.6 Remote Controller Self-Diagnosis Function .........................................177
3.1 "A0" Indoor Unit: Error of External Protection Device ...........................182
3.2 "A1" Indoor Unit: PC Board Defect.........................................................183
3.3 "A3" Indoor Unit: Malfunction of Drain Level Control System (S1L) ......184
3.4 "A6" Indoor Unit: Fan Motor (M1F) Lock, Overload...............................186
3.5 "A7" Indoor Unit: Malfunction of Swing Flap Motor (MA) .......................187
3.6 "A9" Indoor Unit: Malfunction of Moving Part of
Electronic Expansion Valve (20E) .......................................................189
3.7 "AF" Indoor Unit: Drain Level above Limit..............................................191
3.8 "AJ" Indoor Unit: Malfunction of Capacity Determination Device ..........192
3.9 "C4" Indoor Unit: Malfunction of Thermistor (R2T)
for Heat Exchanger ..............................................................................193
3.10 "C5" Indoor Unit: Malfunction of Thermistor (R3T) for Gas Pipes..........194
3.11 "C9" Indoor Unit: Malfunction of Thermistor (R1T) for Suction Air.........195
3.12 "CJ" Indoor Unit: Malfunction of Thermostat Sensor in
Remote Controller ................................................................................196
3.13 "E1" Outdoor Unit: PC Board Defect ......................................................197
3.14 "E3" Outdoor Unit: Actuation of High Pressure Switch ..........................198
3.15 "E4" Outdoor Unit: Actuation of Low Pressure Sensor ..........................199
3.16 "E5" Compressor Motor Lock ................................................................200
3.17 "E6" STD Compressor Motor Overcurrent/Lock ....................................201
3.18 "E7" Malfunction of Outdoor Unit Fan Motor..........................................202
3.19 "E9" Outdoor Unit: Malfunction of Moving Part of
Electronic Expansion Valve (Y1E, Y2E)...............................................204
3.20 "F3" Outdoor Unit: Abnormal Discharge Pipe Temperature ..................206
3.21 "F6" Refrigerant Overcharged ...............................................................207
3.22 "H7" Abnormal Outdoor Fan Motor Signal .............................................208
3.23 "H9" Outdoor Unit: Malfunction of Thermistor for
Outdoor Air (R1T).................................................................................209
3.24 "J2" Current Sensor Malfunction...........................................................210
3.25 "J3" Outdoor Unit: Malfunction of Discharge Pipe Thermistor
(R3, R31~33T) .....................................................................................211
3.26 "J5" Outdoor Unit: Malfunction of Thermistor
(R2T) for Suction Pipe..........................................................................212
3.27 "J6" Outdoor Unit: Malfunction of Thermistor (R4T) for
Outdoor Unit Heat Exchanger ..............................................................213
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