Part 7 Service Diagnosis - Daikin RZQG71~140L7V1B Service Manual

ESIE12-06
1. Maintenance Inspection ......................................................................
2. Symptom-based Troubleshooting .......................................................
3. Troubleshooting by LED Indications ...................................................177
4. Troubleshooting by Remote Controller ...............................................178
Service Diagnosis
Service Diagnosis
1.1 Overview ..............................................................................................
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
3.1 Troubleshooting by LED on the Indoor Unit .........................................177
3.2 Troubleshooting by LED on Outdoor Unit PCB ....................................177
4.1 Procedure of Self-diagnosis by Remote Controller ..............................178
4.2 Error Codes and Description ................................................................182
4.3 Safety Devices .....................................................................................183
4.4 Indoor Unit PCB Abnormality ...............................................................184
4.5 Drain Water Level System Abnormality................................................185
4.6 Indoor Unit Fan Motor Abnormality ......................................................187
4.7 Capacity Setting Abnormality ...............................................................188
4.8 Transmission Error (between Indoor Unit PCB and Adaptor PCB) ......189
4.9 Thermistor Abnormality ........................................................................191
4.10 Humidity Sensor System Abnormality ..................................................192
4.11 Remote Controller Thermistor Abnormality ..........................................193
4.12 Outdoor Unit PCB Abnormality.............................................................194
4.13 High Pressure Abnormality (Detected by the High Pressure
Switch)..................................................................................................195
4.14 Actuation of Pressure Sensor...............................................................199
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
Part 7
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