Part 7 Service Diagnosis - Daikin SkyAir GQI-Eco Series Service Manual

SiBE281013
1. Maintenance Inspection ........................................................................81
2. Symptom-based Troubleshooting .........................................................83
3. Troubleshooting by LED Indications ...................................................101
4. Troubleshooting by Remote Controller ...............................................102
Service Diagnosis
Service Diagnosis
1.1 Overview ................................................................................................81
2.1 Overview ................................................................................................83
2.2 Equipment does not Operate .................................................................84
2.3 Indoor Unit Fan Operates, but Compressor does not Operate ..............86
2.4 Cooling / Heating Operation Starts but Stops Immediately ....................88
2.5 After Unit Shuts Down, It cannot be Restarted for a While ....................89
2.6 Equipment Operates but does not Provide Cooling ...............................91
2.7 Equipment Operates but does not Provide Heating ...............................93
2.8 Equipment Discharges White Mist .........................................................95
2.9 Equipment Produces Loud Noise or Vibration .......................................96
2.10 Equipment Discharges Dust...................................................................97
2.11 Remote Controller LCD Displays " 88 " ....................................................98
2.12 Swing Flap does not Operate.................................................................99
3.1 Troubleshooting by LED on the Indoor Unit .........................................101
3.2 Troubleshooting by LED on Outdoor Unit PCB ....................................101
4.1 Procedure of Self-diagnosis by Remote Controller ..............................102
4.2 Error Codes and Description ................................................................106
4.3 Safety Devices .....................................................................................107
4.4 Indoor Unit PCB Abnormality ...............................................................108
4.5 Drain Water Level System Abnormality................................................109
4.6 Indoor Unit Fan Motor Abnormality ......................................................111
4.7 Capacity Setting Abnormality ...............................................................112
4.8 Transmission Error (between Indoor Unit PCB and Adaptor PCB) ......113
4.9 Thermistor Abnormality ........................................................................115
4.10 Humidity Sensor System Abnormality ..................................................116
4.11 Remote Controller Thermistor Abnormality ..........................................117
4.12 Outdoor Unit PCB Abnormality.............................................................118
4.13 High Pressure Abnormality (Detected by the High Pressure Switch)...119
4.14 Actuation of Pressure Sensor...............................................................123
4.15 Compressor Motor Lock .......................................................................125
4.16 Outdoor Unit Fan Motor Abnormality....................................................126
4.17 Electronic Expansion Valve Abnormality..............................................128
4.18 Discharge Pipe Temperature Control...................................................131
4.19 High Pressure Switch System Abnormality ..........................................133
4.20 Thermistor System Abnormality ...........................................................134
4.21 Outdoor Unit PCB Abnormality.............................................................135
4.22 Radiation Fin Temperature Rise ..........................................................137
4.23 Output Overcurrent Detection ..............................................................139
4.24 Electronic Thermal (Time Lag) .............................................................141
4.25 Stall Prevention (Time Lag)..................................................................143
Part 7
79