Part 6 Service Diagnosis - Daikin G-Series Service Manual

SiBE12-933_A
1. Caution for Diagnosis..........................................................................164
2. Problem Symptoms and Measures .....................................................166
3. Service Check Function ......................................................................167
4. Troubleshooting ..................................................................................173
5. Check ..................................................................................................212
Service Diagnosis
Service Diagnosis
3.1 ARC433 Series.....................................................................................167
3.2 ARC452 Series.....................................................................................170
4.1 Error Codes and Description ................................................................173
4.2 Indoor Unit PCB Abnormality ...............................................................174
4.3 Freeze-up Protection Control or High Pressure Control.......................175
4.4 Fan Motor or Related Abnormality .......................................................177
4.5 Thermistor or Related Abnormality (Indoor Unit)..................................181
4.6 Front Panel Open / Close Fault............................................................182
4.7 Freeze-up Protection Control ...............................................................183
4.8 OL Activation (Compressor Overload) .................................................185
4.9 Compressor Lock .................................................................................186
4.10 DC Fan Lock ........................................................................................187
4.11 Input Overcurrent Detection .................................................................188
4.12 Discharge Pipe Temperature Control...................................................190
4.13 High Pressure Control in Cooling .........................................................191
4.14 Compressor Sensor System Abnormality ............................................193
4.15 Position Sensor Abnormality ................................................................194
4.16 DC Voltage / DC Current Sensor Abnormality .....................................196
4.17 Thermistor or Related Abnormality (Outdoor Unit)...............................197
4.18 Electrical Box Temperature Rise..........................................................199
4.19 Radiation Fin Temperature Rise ..........................................................201
4.20 Output Overcurrent Detection ..............................................................203
4.21 Refrigerant Shortage ............................................................................205
4.22 Over-voltage Detection / Low-voltage Detection ..................................207
4.23 Anti-icing Function in Other Rooms / Unspecified Voltage
(between Indoor and Outdoor Units) ....................................................208
4.24 Outdoor Unit PCB Abnormality or
Signal Transmission Circuit Abnormality..............................................209
5.1 How to Check .......................................................................................212
Part 6
163