Part 7 Troubleshooting - Daikin RXYSQ4-5-6PA7V1B Service Manual

SiBE34-802
1. Symptom-based Troubleshooting .......................................................125
2. Troubleshooting by Remote Controller ...............................................128
3. Troubleshooting by Indication on the Remote Controller ....................142
Troubleshooting
Troubleshooting
2.1 The INSPECTION / TEST Button.........................................................128
2.2 Self-diagnosis by Wired Remote Controller .........................................129
2.3 Self-diagnosis by Wireless Remote Controller .....................................130
2.4 Operation of the Remote Controller's Inspection /
Test Operation Button ..........................................................................132
2.5 Remote Controller Service Mode .........................................................133
2.6 Remote Controller Self-Diagnosis Function .........................................135
3.1 "A0" Indoor Unit: Error of External Protection Device............................142
3.2 "A1" Indoor Unit: PC Board Defect ........................................................143
3.3 "A3" Indoor Unit: Malfunction of Drain Level Control System (S1L) ......144
3.4 "A6" Indoor Unit: Fan Motor (M1F) Lock, Overload...............................146
3.5 "A7" Indoor Unit: Malfunction of Swing Flap Motor (M1S).....................147
3.6 Abnormal Power Supply Voltage..........................................................149
3.7 "A9" Indoor Unit: Malfunction of Moving Part of
Electronic Expansion Valve (Y1E)........................................................150
3.8 "AF" Indoor Unit: Drain Level above Limit .............................................152
3.9 "AJ" Indoor Unit: Malfunction of Capacity Determination Device ..........153
3.10 "C1" Indoor Unit: Failure of Transmission
(Between Indoor unit PC Board and Fan PC Board)............................154
3.11 "C4" Indoor Unit: Malfunction of Thermistor (R2T) for
Heat Exchanger....................................................................................156
3.12 "C5" Indoor Unit: Malfunction of Thermistor (R3T) for Gas Pipes .........157
3.13 "C6" Indoor Unit: Failure of Combination
(Between Indoor unit PC Board and Fan PC Board)............................158
3.14 "C9" Indoor Unit: Malfunction of Thermistor (R1T) for Suction Air.........159
3.15 "CA" Indoor Unit: Malfunction of Thermistor for Discharge Air...............160
3.16 "CC" Indoor Unit: Malfunction of Humidity Sensor System ....................161
3.17 "CJ" Indoor Unit: Malfunction of Thermostat Sensor in
Remote Controller ................................................................................162
3.18 "E1" Outdoor Unit: PC Board Defect .....................................................163
3.19 "E3" Outdoor Unit: Actuation of High Pressure Switch..........................164
3.20 "E4" Outdoor Unit: Actuation of Low Pressure Sensor..........................166
3.21 "E5" Inverter Compressor Motor Lock ...................................................168
3.22 "E7" Malfunction of Outdoor Unit Fan Motor .........................................169
3.23 "E9" Outdoor Unit: Malfunction of Moving Part of
Electronic Expansion Valve (Y1E, Y3E)...............................................170
3.24 "F3" Outdoor Unit: Abnormal Discharge Pipe Temperature..................172
3.25 "F6" Outdoor Unit: Refrigerant Overcharged.........................................173
3.26 "H9" Outdoor Unit: Malfunction of Thermistor (R1T) for Outdoor Air.....174
3.27 "J3" Outdoor Unit: Malfunction of Discharge Pipe Thermistor (R2T) ....175
3.28 "J5" Outdoor Unit: Malfunction of Thermistor (R3T, R5T) for
Suction Pipe 1, 2 ..................................................................................176
Part 7
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