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SiE12-411
Service Diagnosis
161
Part 6
Service Diagnosis
1. Caution for Diagnosis..........................................................................162
1.1
Troubleshooting with the Operation Lamp ...........................................162
2. Problem Symptoms and Measures .....................................................164
3. Service Check Function ......................................................................165
4. Code Indication on the Remote Controller ..........................................166
4.1
Error Codes and Description of Fault ...................................................166
5. Troubleshooting ..................................................................................167
5.1
Indoor Units ..........................................................................................167
5.2
Outdoor Units .......................................................................................168
5.3
Indoor Unit PCB Abnormality ...............................................................169
5.4
Freeze-up Protection Control or High Pressure Control.......................170
5.5
Fan Motor or Related Abnormality .......................................................172
5.6
Thermistor or Related Abnormality (Indoor Unit)..................................175
5.7
Shutter Drive Motor / Shutter Limit Switch Abnormality .......................176
5.8
Signal Transmission Error (between Indoor and Outdoor Units)..........177
5.9
Unspecified Voltage (between Indoor and Outdoor Units) ...................178
5.10 Freeze-up Protection Control ...............................................................179
5.11 OL Activation (Compressor Overload) .................................................181
5.12 Compressor Lock .................................................................................182
5.13 DC Fan Lock ........................................................................................183
5.14 Input Over Current Detection ...............................................................184
5.15 Four Way Valve Abnormality................................................................186
5.16 Discharge Pipe Temperature Control...................................................188
5.17 Position Sensor Abnormality ................................................................189
5.18 CT or Related Abnormality ...................................................................190
5.19 Thermistor or Related Abnormality (Outdoor Unit) ...............................192
5.20 Electrical Box Temperature Rise..........................................................194
5.21 Radiation Fin Temperature Rise ..........................................................196
5.22 Output Over Current Detection.............................................................198
5.23 Insufficient Gas.....................................................................................200
5.24 Low-voltage Detection..........................................................................202
5.25 Anti-icing Function in Other Rooms / Unspecified Voltage
(between Indoor and Outdoor Units) ....................................................203
6. Check ..................................................................................................204
6.1
How to Check .......................................................................................204
Summary of Contents for Super Multi NX C-Series
Page 6: ...SiE12 411 Table of Contents v Index i Drawings Flow Charts v...
Page 7: ...SiE12 411 vi Table of Contents...
Page 67: ...Specifications SiE12 411 56 Specifications...
Page 171: ...Instruction SiE12 411 160 System Configuration...
Page 225: ...Check SiE12 411 214 Service Diagnosis...
Page 295: ...SiE12 411 iv Index...