Part 6 Service Diagnosis - Daikin FLKS25BVMB Service Manual

SiBE05-311
1. Caution for Diagnosis............................................................................72
2. Problem Symptoms and Measures .......................................................73
3. Service Check Function ........................................................................74
4. Troubleshooting ....................................................................................75
5. Check ..................................................................................................104
Service Diagnosis
Service Diagnosis
4.1 Error Codes and Description ................................................................. 75
4.2 Indoor Unit PCB Abnormality................................................................. 76
4.3 Freeze-up Protection Control or High Pressure Control........................ 77
4.4 Fan Motor (AC Motor) or Related Abnormality ...................................... 79
4.5 Thermistor or Related Abnormality (Indoor Unit)................................... 80
4.6 Signal Transmission Error (between Indoor and Outdoor Units)........... 81
4.7 OL Activation (Compressor Overload)................................................... 82
4.8 Compressor Lock .................................................................................. 83
4.9 Input Over Current Detection................................................................. 84
4.10 Four Way Valve Abnormality ................................................................. 85
4.11 Discharge Pipe Temperature Control .................................................... 87
4.12 Position Sensor Abnormality ................................................................. 88
4.13 CT or Related Abnormality .................................................................... 89
4.14 Thermistor or Related Abnormality (Outdoor Unit) ................................ 91
4.15 Electrical Box Temperature Rise ........................................................... 93
4.16 Radiation Fin Temperature Rise............................................................ 95
4.17 Output Over Current Detection.............................................................. 97
4.18 Insufficient Gas...................................................................................... 99
4.19 Over-voltage Detection........................................................................ 101
4.20 High Pressure Control in Cooling ........................................................ 102
5.1 How to Check ...................................................................................... 104
Part 6
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