Daikin RZQG71L9V1 Service Manual

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Contents

Daikin RZQG71L9V1 Service Manual Manual pdf 109 page image

ESIE15-13CService Diagnosis 95Part 5Service Diagnosis1. Maintenance Inspection .......................................................................971.1 Overview ...............................................................................................972. Symptom-based Troubleshooting ........................................................992.1 Overview ...............................................................................................992.2 Equipment does not Operate ..............................................................1002.3 Indoor Unit Fan Operates, but Compressor does not Operate ...........1022.4 Cooling / Heating Operation Starts but Stops Immediately .................1042.5 After Unit Shuts Down, It cannot be Restarted for a While .................1052.6 Equipment Operates but does not Provide Cooling ............................1072.7 Equipment Operates but does not Provide Heating ............................1092.8 Equipment Discharges White Mist ......................................................1112.9 Equipment Produces Loud Noise or Vibration ....................................1122.10 Equipment Discharges Dust ................................................................1132.11 Remote Controller LCD Displays "88" .................................................1142.12 Swing Flap does not Operate ..............................................................1153. Troubleshooting by LED Indications ..................................................1173.1 Troubleshooting by LED on the Indoor Unit ........................................1173.2 Troubleshooting by LED on Outdoor Unit PCB ...................................1174. Troubleshooting by Remote Controller ..............................................1184.1 Procedure of Self-diagnosis by Remote Controller .............................1184.2 Error Codes and Description ...............................................................1224.3 Safety Devices ....................................................................................1234.4 Indoor Unit PCB Abnormality ..............................................................1244.5 Drain Water Level System Abnormality ...............................................1254.6 Indoor Unit Fan Motor Abnormality .....................................................1274.7 Capacity Setting Abnormality ..............................................................1284.8 Transmission Error (between Indoor Unit PCB and Adaptor PCB) .....1294.9 Thermistor Abnormality .......................................................................1314.10 Humidity Sensor System Abnormality .................................................1324.11 Malfunction of Motion Sensor / Floor Temperature Sensor .................1334.12 Remote Controller Thermistor Abnormality .........................................1384.13 Outdoor Unit PCB Abnormality ............................................................1394.14 High Pressure Abnormality (Detected by the High Pressure Switch) ..1404.15 Actuation of Pressure Sensor ..............................................................1424.16 Compressor Motor Lock ......................................................................1444.17 Outdoor Unit Fan Motor Abnormality ...................................................1454.18 Electronic Expansion Valve Abnormality .............................................1474.19 Discharge Pipe Temperature Control ..................................................1504.20 High Pressure Switch System Abnormality .........................................1524.21 Low Pressure Switch System Abnormality ..........................................1534.22 Thermistor System Abnormality ..........................................................1544.23 Outdoor Unit PCB Abnormality ............................................................1554.24 Radiation Fin Temperature Rise .........................................................1574.25 Output Overcurrent Detection .............................................................1594.26 Electronic Thermal (Time Lag) ............................................................161