Part 6 Service Diagnosis - Daikin Super multi NX E Series Service Manual

SiBE121135_A
1. Troubleshooting with LED ...................................................................150
2. Problem Symptoms and Measures .....................................................153
3. Service Check Function ......................................................................154
4. Code Indication on Remote Controller ................................................167
5. Troubleshooting for RA Indoor Unit.....................................................170
6. Troubleshooting for SA Indoor Unit.....................................................184
7. Troubleshooting for Outdoor Unit........................................................200
Service Diagnosis
Service Diagnosis
1.1 Indoor Unit............................................................................................150
1.2 Outdoor Unit .........................................................................................152
3.1 RA Indoor Unit......................................................................................154
3.2 SA Indoor Unit ......................................................................................163
4.1 RA Indoor Unit......................................................................................167
4.2 SA Indoor Unit ......................................................................................167
4.3 Sub Codes for SA Indoor Unit ..............................................................168
4.4 Outdoor Unit .........................................................................................169
5.1 Indoor Unit PCB Abnormality ...............................................................170
5.2 Freeze-up Protection Control or Heating Peak-cut Control..................172
5.3 Fan Motor or Related Abnormality .......................................................173
5.4 Radiant Panel Temperature Rise, Indoor Electronic Expansion Valve
(Motor Operated Valve) Abnormality, Freeze-up Protection Control
(FVXG Series Only)..............................................................................178
5.5 Thermistor or Related Abnormality (RA Indoor Unit)............................180
5.6 Front Panel Open / Close Fault (FTXG Series Only) ...........................181
5.7 Signal Transmission Error (between Indoor Unit and Outdoor Unit) ....182
5.8 Unspecified Voltage (between Indoor Unit and Outdoor Unit) .............183
6.1 Indoor Unit PCB Abnormality ...............................................................184
6.2 Drain Level Control System Abnormality..............................................185
6.3 Fan Motor or Related Abnormality .......................................................187
6.4 Swing Motor Lock (FHQ Series Only) ..................................................193
6.5 Drain System Abnormality....................................................................194
6.6 Thermistor or Related Abnormality (SA Indoor Unit)............................195
6.7 Remote Controller Thermistor Abnormality ..........................................196
6.8 Signal Transmission Error
(between Indoor Unit and Remote Controller)......................................197
6.9 Signal Transmission Error
(between MAIN Remote Controller and SUB Remote Controller)........198
6.10 Field Setting Abnormality .....................................................................199
7.1 Refrigerant Shortage ............................................................................200
7.2 Low-voltage Detection or Over-voltage Detection................................202
7.3 Signal Transmission Error (on Outdoor Unit PCB)...............................204
7.4 Unspecified Voltage (between Indoor Unit and Outdoor Unit) /
Anti-icing Function in Other Rooms......................................................205
7.5 Anti-icing Control for Indoor Unit ..........................................................206
7.6 Outdoor Unit PCB Abnormality.............................................................208
Part 6
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