Daikin FVKS25BVMB Service Manual

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Contents

Daikin FVKS25BVMB Service Manual Manual pdf 86 page image

SiBE06-514AService Diagnosis 77Part 6Service Diagnosis1. Caution for Diagnosis............................................................................782. Problem Symptoms and Measures .......................................................793. Service Check Function ........................................................................804. Troubleshooting ....................................................................................834.1 Error Codes and Description ..................................................................834.2 Indoor Unit PCB Abnormality .................................................................844.3 Freeze-up Protection Control or High Pressure Control.........................854.4 Fan Motor (DC Motor) or Related Abnormality.......................................874.5 Thermistor or Related Abnormality (Indoor Unit)....................................894.6 Shutter Drive Motor / Shutter Limit Switch Abnormality .........................904.7 Signal Transmission Error (between Indoor and Outdoor Unit) .............914.8 Unspecified Voltage (between Indoor and Outdoor Units) .....................924.9 Outdoor Unit PCB Abnormality...............................................................934.10 OL Activation (Compressor Overload) ...................................................944.11 Compressor Lock ...................................................................................954.12 DC Fan Lock ..........................................................................................964.13 Input Over Current Detection .................................................................974.14 Four Way Valve Abnormality..................................................................984.15 Discharge Pipe Temperature Control...................................................1004.16 High Pressure Control in Cooling .........................................................1014.17 Compressor System Sensor Abnormality ............................................1034.18 Position Sensor Abnormality ................................................................1044.19 DC Voltage / Current Sensor Abnormality............................................1054.20 Thermistor or Related Abnormality (Outdoor Unit)...............................1064.21 Electrical Box Temperature Rise..........................................................1084.22 Radiation Fin Temperature Rise ..........................................................1104.23 Output Over Current Detection.............................................................1124.24 Insufficient Gas.....................................................................................1144.25 Over-voltage Detection.........................................................................1165. Check ..................................................................................................1175.1 How to Check .......................................................................................117