Daikin RZQG71~140L7V1B, Service Manual

Page: 166 / 279

ESIE12-06
Service Diagnosis 155
Part 7
Service Diagnosis
1. Maintenance Inspection ......................................................................
1.1 Overview ..............................................................................................
2. Symptom-based Troubleshooting .......................................................
2.1 Overview ..............................................................................................
2.2 Equipment does not Operate ...............................................................
2.3 Indoor Unit Fan Operates, but Compressor does not Operate ............
2.4 Cooling / Heating Operation Starts but Stops Immediately ..................
164
2.5 After Unit Shuts Down, It cannot be Restarted for a While ..................
165
2.6 Equipment Operates but does not Provide Cooling .............................
167
2.7 Equipment Operates but does not Provide Heating .............................
169
2.8 Equipment Discharges White Mist .......................................................
171
2.9 Equipment Produces Loud Noise or Vibration .....................................
172
2.10 Equipment Discharges Dust.................................................................
173
2.11 Remote Controller LCD Displays "
88
" ..................................................
174
2.12 Swing Flap does not Operate...............................................................
175
3. Troubleshooting by LED Indications ...................................................1
77
3.1 Troubleshooting by LED on the Indoor Unit .........................................1
77
3.2 Troubleshooting by LED on Outdoor Unit PCB ....................................1
77
4. Troubleshooting by Remote Controller ...............................................1
78
4.1 Procedure of Self-diagnosis by Remote Controller ..............................1
78
4.2 Error Codes and Description ................................................................1
82
4.3 Safety Devices .....................................................................................1
83
4.4 Indoor Unit PCB Abnormality ...............................................................1
84
4.5 Drain Water Level System Abnormality................................................1
85
4.6 Indoor Unit Fan Motor Abnormality ......................................................1
87
4.7 Capacity Setting Abnormality ...............................................................1
88
4.8 Transmission Error (between Indoor Unit PCB and Adaptor PCB) ......1
89
4.9 Thermistor Abnormality ........................................................................1
91
4.10 Humidity Sensor System Abnormality ..................................................1
92
4.11 Remote Controller Thermistor Abnormality ..........................................1
93
4.12 Outdoor Unit PCB Abnormality.............................................................1
94
4.13 High Pressure Abnormality (Detected by the High Pressure
Switch)..................................................................................................1
95
4.14 Actuation of Pressure Sensor...............................................................1
99
4.15 Compressor Motor Lock .......................................................................
201
4.16 Outdoor Unit Fan Motor Abnormality....................................................
202
4.17 Electronic Expansion Valve Abnormality..............................................
204
4.18 Discharge Pipe Temperature Control...................................................
207
4.19 High Pressure Switch System Abnormality ..........................................
209
4.20 Thermistor System Abnormality ...........................................................
210
4.21 Outdoor Unit PCB Abnormality.............................................................
211
4.22 Radiation Fin Temperature Rise ..........................................................
213
4.23 Output Overcurrent Detection ..............................................................
215
4.24 Electronic Thermal (Time Lag) .............................................................
217
4.25 Stall Prevention (Time Lag)..................................................................
219