Daikin FTK25BVMB - Part 6 Service Diagnosis

SiBE04-302
Service Diagnosis 87
Part 6
Part 6Part 6
Part 6
Service Diagnosis
Service DiagnosisService Diagnosis
Service Diagnosis
1. Caution for Diagnosis............................................................................88
2. Problem Symptoms and Measures .......................................................89
3. Service Check Function ........................................................................90
4. Troubleshooting ....................................................................................91
4.1 Error Codes and Description ..................................................................91
4.2 Indoor Unit PCB Abnormality .................................................................92
4.3 Freeze-up Protection Control or High Pressure Control.........................93
4.4 Fan Motor (AC Motor) or Related Abnormality.......................................95
4.5 Thermistor or Related Abnormality (Indoor Unit)....................................96
4.6 Signal Transmission Error (between Indoor and Outdoor Units)............97
4.7 OL Activation (Compressor Overload) ...................................................98
4.8 Compressor Lock ...................................................................................99
4.9 Input Over Current Detection ...............................................................100
4.10 Four Way Valve Abnormality................................................................101
4.11 Discharge Pipe Temperature Control...................................................103
4.12 Position Sensor Abnormality ................................................................104
4.13 CT or Related Abnormality ...................................................................105
4.14 Thermistor or Related Abnormality (Outdoor Unit)...............................107
4.15 Electrical Box Temperature Rise..........................................................109
4.16 Radiation Fin Temperature Rise ..........................................................111
4.17 Output Over Current Detection.............................................................113
4.18 Insufficient Gas.....................................................................................115
4.19 Over-voltage Detection.........................................................................117
4.20 High Pressure Control in Cooling .........................................................118
5. Check ..................................................................................................120
5.1 How to Check .......................................................................................120