Daikin RZQG71~140L7V1B Service Manual

Also see for SkyAir RZQG100L7V1B: Installation manual

Contents

Daikin RZQG71~140L7V1B Service Manual Manual pdf 166 page image

ESIE12-06Service Diagnosis 155Part 7Service Diagnosis1. 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 ..................1642.5 After Unit Shuts Down, It cannot be Restarted for a While ..................1652.6 Equipment Operates but does not Provide Cooling .............................1672.7 Equipment Operates but does not Provide Heating .............................1692.8 Equipment Discharges White Mist .......................................................1712.9 Equipment Produces Loud Noise or Vibration .....................................1722.10 Equipment Discharges Dust.................................................................1732.11 Remote Controller LCD Displays "88" ..................................................1742.12 Swing Flap does not Operate...............................................................1753. Troubleshooting by LED Indications ...................................................1773.1 Troubleshooting by LED on the Indoor Unit .........................................1773.2 Troubleshooting by LED on Outdoor Unit PCB ....................................1774. Troubleshooting by Remote Controller ...............................................1784.1 Procedure of Self-diagnosis by Remote Controller ..............................1784.2 Error Codes and Description ................................................................1824.3 Safety Devices .....................................................................................1834.4 Indoor Unit PCB Abnormality ...............................................................1844.5 Drain Water Level System Abnormality................................................1854.6 Indoor Unit Fan Motor Abnormality ......................................................1874.7 Capacity Setting Abnormality ...............................................................1884.8 Transmission Error (between Indoor Unit PCB and Adaptor PCB) ......1894.9 Thermistor Abnormality ........................................................................1914.10 Humidity Sensor System Abnormality ..................................................1924.11 Remote Controller Thermistor Abnormality ..........................................1934.12 Outdoor Unit PCB Abnormality.............................................................1944.13 High Pressure Abnormality (Detected by the High PressureSwitch)..................................................................................................1954.14 Actuation of Pressure Sensor...............................................................1994.15 Compressor Motor Lock .......................................................................2014.16 Outdoor Unit Fan Motor Abnormality....................................................2024.17 Electronic Expansion Valve Abnormality..............................................2044.18 Discharge Pipe Temperature Control...................................................2074.19 High Pressure Switch System Abnormality ..........................................2094.20 Thermistor System Abnormality ...........................................................2104.21 Outdoor Unit PCB Abnormality.............................................................2114.22 Radiation Fin Temperature Rise ..........................................................2134.23 Output Overcurrent Detection ..............................................................2154.24 Electronic Thermal (Time Lag) .............................................................2174.25 Stall Prevention (Time Lag)..................................................................219