Part 6 Service Diagnosis - Daikin D-Series Service Manual

SiBE12-522
1. Caution for Diagnosis..........................................................................166
2. Problem Symptoms and Measures .....................................................168
3. Service Check Function ......................................................................169
4. Code Indication on the Remote Controller ..........................................172
5. Troubleshooting ..................................................................................173
6. Check ..................................................................................................212
Service Diagnosis
Service Diagnosis
1.1 Troubleshooting with Operation Lamp .................................................166
4.1 Error Codes and Description of Fault ...................................................172
5.1 Indoor Units ..........................................................................................173
5.2 Outdoor Units .......................................................................................174
5.3 Indoor Unit PCB Abnormality ...............................................................175
5.4 Freeze-up Protection Control or High Pressure Control.......................176
5.5 Fan Motor or Related Abnormality .......................................................178
5.6 Thermistor or Related Abnormality (Indoor Unit)..................................181
5.7 Shutter Drive Motor / Shutter Limit Switch Abnormality .......................182
5.8 Signal Transmission Error (between Indoor and Outdoor Units)..........183
5.9 Unspecified Voltage (between Indoor and Outdoor Units) ...................184
5.10 Freeze-up Protection Control ...............................................................185
5.11 OL Activation (Compressor Overload) .................................................187
5.12 Compressor Lock .................................................................................188
5.13 DC Fan Lock ........................................................................................189
5.14 Input Over Current Detection ...............................................................190
5.15 Four Way Valve Abnormality................................................................192
5.16 Discharge Pipe Temperature Control...................................................194
5.17 High Pressure Control in Cooling .........................................................195
5.18 Position Sensor Abnormality ................................................................197
5.19 CT or Related Abnormality ...................................................................198
5.20 Thermistor or Related Abnormality (Outdoor Unit)...............................200
5.21 Electrical Box Temperature Rise..........................................................202
5.22 Radiation Fin Temperature Rise ..........................................................204
5.23 Output Over Current Detection.............................................................206
5.24 Insufficient Gas.....................................................................................208
5.25 Low-voltage Detection..........................................................................210
5.26 Anti-icing Function in Other Rooms / Unspecified Voltage
(between Indoor and Outdoor Units) ....................................................211
6.1 How to Check .......................................................................................212
Part 6
165