Part 6 Troubleshooting - Daikin RQYQ140-180PY1 Service Manual

SiBE341001
1. Symptom-based Troubleshooting .........................................................94
2. Troubleshooting by Remote Controller .................................................97
Troubleshooting
Troubleshooting
2.1 The INSPECTION / TEST Button...........................................................97
2.2 Self-diagnosis by Wired Remote Controller ...........................................98
2.3 Remote Controller Service Mode ...........................................................99
2.4 Test Run Mode.....................................................................................102
2.5 Remote Controller Self-Diagnosis Function .........................................102
2.6 " E1 " Outdoor Unit: PCB Defect .............................................................110
2.7 " E2 " Outdoor Unit: Actuation of High Pressure Switch..........................111
2.8 " E3 " Outdoor Unit: Actuation of High Pressure Switch..........................112
2.9 " E4 " Outdoor Unit: Actuation of Low Pressure Sensor..........................114
2.10 " E5 " Outdoor Unit: Inverter Compressor Motor Lock.............................116
2.11 " E7 " Outdoor Unit: Malfunction of Outdoor Unit Fan Motor ...................118
2.12 " E9 " Outdoor Unit: Malfunction of Electronic
Expansion Valve Coil (Y1E~Y3E) ........................................................121
2.13 " F3 " Outdoor Unit: Abnormal Discharge Pipe Temperature..................123
2.14 " F4 " Outdoor Unit: Humidity alarm ........................................................125
2.15 " F9 " Outdoor Unit : Malfunction of BS Unit Electronic
Expansion Valve...................................................................................127
2.16 " H7 " Outdoor Unit: Abnormal Outdoor Fan Motor Signal ......................129
2.17 " H9 " Outdoor Unit: Malfunction of Thermistor (R1T) for Outdoor Air.....131
2.18 " J3 , J4 , J5 , J6 , J7 , J8 , J9 " Outdoor Unit: Malfunction of
Outdoor unit Thermistor .......................................................................132
2.19 " JA " Outdoor Unit: Malfunction of High Pressure Sensor......................134
2.20 " JC " Outdoor Unit: Malfunction of Low Pressure Sensor ......................136
2.21 " L1 " Outdoor Unit: Malfunction of Inverter PCB ....................................138
2.22 " L4 " Outdoor Unit: Malfunction of Inverter Radiating Fin
Temperature Rise.................................................................................140
2.23 " L5 " Outdoor Unit: Momentary Overcurrent of Inverter Compressor ....142
2.24 " L8 " Outdoor Unit: Momentary Overcurrent of Inverter Compressor ....144
2.25 " L9 " Outdoor Unit: Inverter Compressor Starting Failure ......................146
2.26 " LC " Outdoor Unit: Malfunction of Transmission between Inverter
and Main PCB ......................................................................................149
2.27 " P1 " Outdoor Unit: Inverter Over-Ripple Protection...............................151
2.28 " P4 " Outdoor Unit: Malfunction of Inverter Radiating Fin
Temperature Rise Sensor ....................................................................153
2.29 " PJ " Outdoor Unit: Faulty Field Setting after Replacing Main PCB
or Faulty Combination of PCB..............................................................154
2.30 " U1 " Reverse Phase, Open Phase ........................................................156
2.31 " U2 " Outdoor Unit: Power Supply Insufficient or
Instantaneous Failure...........................................................................157
2.32 " U3 " Outdoor Unit: Check Operation is not Executed............................160
2.33 " U4 " Malfunction of Transmission between Indoor Units
and Outdoor Units ................................................................................162
2.34 " U7 " Outdoor Unit: Transmission Failure (Across Outdoor Units) .........165
Part 6
92