Part 6 Service Diagnosis - Daikin F-Series Service Manual

SiBE04-705
1. Caution for Diagnosis..........................................................................114
2. Problem Symptoms and Measures .....................................................115
3. Service Check Function ......................................................................116
4. Troubleshooting ..................................................................................117
5. Check ..................................................................................................154
Service Diagnosis
Service Diagnosis
4.1 Error Codes and Description ................................................................117
4.2 Indoor Unit PCB Abnormality ...............................................................118
4.3 Freeze-up Protection Control or High Pressure Control.......................119
4.4 Fan Motor (DC Motor) or Related Abnormality.....................................121
4.5 Thermistor or Related Abnormality (Indoor Unit)..................................123
4.6 Signal Transmission Error (between Indoor and Outdoor Unit) ...........124
4.7 Outdoor Unit PCB Abnormality.............................................................126
4.8 OL Activation (Compressor Overload) .................................................127
4.9 Compressor Lock .................................................................................128
4.10 DC Fan Lock ........................................................................................129
4.11 Input Over Current Detection ...............................................................130
4.12 Four Way Valve Abnormality................................................................132
4.13 Discharge Pipe Temperature Control...................................................134
4.14 High Pressure Control in Cooling .........................................................135
4.15 Compressor Sensor System Abnormality ............................................137
4.16 Position Sensor Abnormality ................................................................139
4.17 CT or Related Abnormality ...................................................................140
4.18 Thermistor or Related Abnormality (Outdoor Unit)...............................142
4.19 Electrical Box Temperature Rise..........................................................144
4.20 Radiation Fin Temperature Rise ..........................................................146
4.21 Output Over Current Detection.............................................................148
4.22 Insufficient Gas.....................................................................................150
4.23 Low-voltage Detection or Over-voltage Detection................................152
4.24 Signal Transmission Error on Outdoor Unit PCB .................................153
5.1 How to Check .......................................................................................154
Part 6
113