Daikin SkyAir RZQ-P Series, Service Manual

Page: 79 / 180

SiUS28-902_B
Service Diagnosis 71
Part 5
Service Diagnosis
1. Symptom-based Troubleshooting .........................................................73
2. Troubleshooting by Remote Controller .................................................76
2.1 The INSPECTION / TEST Button .......................................................... 76
2.2 Self-diagnosis by Wired Remote Controller ........................................... 77
2.3 Self-diagnosis by Wireless Remote Controller....................................... 79
2.4 Inspection Mode..................................................................................... 81
2.5 Remote Controller Service Mode ........................................................... 82
2.6 Error Codes and Description.................................................................. 86
3. Troubleshooting by Indication on the Remote Controller ......................89
3.1 External Protection Device Abnormality................................................. 89
3.2 PCB Abnormality.................................................................................... 90
3.3 Drain Water Level System Abnormality ................................................. 91
3.4 Indoor Unit Fan Motor Abnormality ........................................................ 93
3.5 Swing Flap Motor Abnormality / Lock .................................................... 94
3.6 Electronic Expansion Valve Coil Abnormality ........................................ 96
3.7 Drain System Abnormality ..................................................................... 98
3.8 Capacity Setting Device Abnormality ..................................................... 99
3.9 Heat Exchanger (Liquid pipe) Thermistor Abnormality ........................ 100
3.10 Heat Exchanger (Gas Pipe) Thermistor Abnormality ........................... 101
3.11 Suction Air Thermistor Abnormality ..................................................... 102
3.12 Remote Sensor Abnormality ................................................................ 103
3.13 Room Temperature Thermistor in Remote Controller Abnormality...... 104
3.14 Outdoor Unit PCB Abnormality ............................................................ 105
3.15 High Pressure Abnormality .................................................................. 106
3.16 Actuation of Low Pressure Sensor....................................................... 108
3.17 Inverter Compressor Motor Lock ......................................................... 110
3.18 Outdoor Unit Fan Motor Abnormality ................................................... 112
3.19 Electronic Expansion Valve Coil Abnormality ...................................... 113
3.20 Discharge Pipe Temperature Control .................................................. 115
3.21 Refrigerant Overcharged ..................................................................... 116
3.22 High Pressure Switch Abnormality....................................................... 117
3.23 Outdoor Unit Fan Motor Signal Abnormality ........................................ 118
3.24 Outdoor Air Thermistor Abnormality .................................................... 119
3.25 Discharge Pipe Thermistor Abnormality............................................... 120
3.26 Suction Pipe Thermistor Abnormality................................................... 121
3.27 Outdoor Unit Heat Exchanger Thermistor Abnormality........................ 122
3.28 High Pressure Sensor Abnormality ...................................................... 123
3.29 Low Pressure Sensor Abnormality....................................................... 125
3.30 Outdoor Unit PCB Abnormality ............................................................ 127
3.31 Radiation Fin Temperature Rise .......................................................... 128
3.32 Momentary Overcurrent of Inverter Compressor ................................. 129