SiBE12-816_D
195 Service Diagnosis
Part 6
Service Diagnosis
1. Troubleshooting with LED ...................................................................197
1.1 Indoor Unit............................................................................................197
1.2 Outdoor Unit .........................................................................................198
2. Problem Symptoms and Measures .....................................................199
3. Service Check Function ......................................................................200
3.1 RA Indoor Unit - F(C)TXG, FTXS, FVXS, FLK(X)S,
FDK(X)S Series....................................................................................200
3.2 SA Indoor Unit - FFQ Series ................................................................209
4. Code Indication on Remote Controller ................................................213
4.1 RA Indoor Unit - F(C)TXG, FTXS, FVXS, FLK(X)S,
FDK(X)S Series....................................................................................213
4.2 SA Indoor Unit - FFQ Series ................................................................213
4.3 Outdoor Unit .........................................................................................214
5. Troubleshooting for RA Indoor Unit - F(C)TXG, FTXS, FVXS,
FLK(X)S, FDK(X)S Series...................................................................215
5.1 Indoor Unit PCB Abnormality ...............................................................215
5.2 Freeze-up Protection Control or Heating Peak-cut Control..................216
5.3 Fan Motor or Related Abnormality .......................................................218
5.4 Thermistor or Related Abnormality (Indoor Unit)..................................221
5.5 Front Panel Open / Close Fault (FTXG, CTXG)...................................222
6. Troubleshooting for SA Indoor Unit - FFQ Series ...............................223
6.1 Indoor Unit PCB Abnormality ...............................................................223
6.2 Drain Water Level System Abnormality................................................224
6.3 Fan Motor or Related Abnormality .......................................................226
6.4 Drain System Abnormality....................................................................227
6.5 Thermistor or Related Abnormality.......................................................228
6.6 Remote Controller Thermistor Abnormality ..........................................230
6.7 Signal Transmission Error
(between Indoor Unit and Remote Controller)......................................231
6.8 Signal Transmission Error
(between MAIN Remote Controller and SUB Remote Controller)........232
6.9 Field Setting Abnormality .....................................................................233
7. Troubleshooting for Outdoor Unit........................................................235
7.1 Anti-icing Control for Indoor Unit ..........................................................235
7.2 OL Activation (Compressor Overload) .................................................237
7.3 Compressor Lock .................................................................................238
7.4 DC Fan Lock ........................................................................................239
7.5 Input Overcurrent Detection .................................................................240
7.6 Discharge Pipe Temperature Control...................................................241
7.7 High Pressure Control in Cooling .........................................................242
7.8 Compressor Sensor System Abnormality ............................................243
7.9 Position Sensor Abnormality ................................................................244
7.10 DC Voltage / Current Sensor Abnormality............................................246