Daikin Super multi NX E Series User Manual

SiBE121135_A
Table of Contents iv
Part 6 Service Diagnosis........................................................... 148
1. Troubleshooting with LED ...................................................................150
1.1 Indoor Unit............................................................................................150
1.2 Outdoor Unit .........................................................................................152
2. Problem Symptoms and Measures .....................................................153
3. Service Check Function ......................................................................154
3.1 RA Indoor Unit......................................................................................154
3.2 SA Indoor Unit......................................................................................163
4. Code Indication on Remote Controller ................................................167
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. Troubleshooting for RA Indoor Unit.....................................................170
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. Troubleshooting for SA Indoor Unit.....................................................184
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. Troubleshooting for Outdoor Unit........................................................200
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
7.7 OL Activation (Compressor Overload) .................................................209
7.8 Compressor Lock .................................................................................211
7.9 DC Fan Lock ........................................................................................212
7.10 Input Overcurrent Detection .................................................................213
7.11 Discharge Pipe Temperature Control...................................................214
7.12 High Pressure Control in Cooling .........................................................215

Daikin Super multi NX E Series Specifications

General

Brand	Daikin
Model	Super multi NX E Series
Category	Air Conditioner
Language	English